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• Article: "Abnormal Hemoglobin Molecules and their Relation to Disease Discussed," Lab World, March 1956. [Filed under LP Biographical: LP Scrapbooks, 1956-1960: Box #6.007, Folder #7.7]
• Contribution to: Where is science taking us? The research frontier. Saturday Rev. 39 (March 1956): 58. [Filed under LP Publications: 1956p.8]
• Itinerary and Schedule: for LP and AHP trip to Portland, Oregon; Vancouver, Washington; Winnipeg, Canada; Des Moines, Iowa City, Champaign-Urbana, Los Angeles, Urbana, New Haven CT., Beacon, New York; Amherst, Massachusetts; Urbana, Illinois; Chicago, Lawrence, Kansas, March 23 - May 8, 1956. [Filed under AHP: Travel Diaries and Itineraries, 1926, 1949-1974, 1981, No Date: Box #3.008, Folder #8.2]
• Letter from William Mace, Shortridge High Science Club, to LP RE: Asks for a letter from LP detailing his work and achievements. Requests a list of books and manuscripts authored by LP. [Letter from Wulf to Mace March 29, 1956] [Filed under LP Correspondence: (M: Correspondence, 1956), #257.1]
• Photo: Linus Pauling lecturing. (Harold F. Perkins / U of B.C. Vancouver March 1956" Photographer unknown. Black and white print. [Ship #1661] [Filed under LP Photo Box: 1956i.31]
• Reprint: "Modification of Radiation Response," Bulletin of the Atomic Scientists. [Filed under LP Peace: Materials re: The Biological Effects of Radiation, 1948, 1950, 1955-1959: Box #7.015, Folder #15.5]

• Bound Report: Protein Structure Group Report No. 1, California Institute of Technology, March 1, 1956. [Filed under LP Science: #6.013, Folder #13.1]
• Letter from Abraham Lederman, Teachers Union of the City of New York, to LP RE: Asks if LP will provide a statement to be read at the Twentieth Annual Education Conference of the Teachers Union. [Letter from LP to Lederman February 14, 1956] [Filed under LP Correspondence: (L: Correspondence), #231.2]
• Letter from LP to Aida Sloan RE: Thanks Sloan for the her contribution to the Dr. Howard Sloan Memorial Research Fund in honor of LP's birthday. [Note from Sloan to LP February 18, 1956] [Filed under LP Correspondence: (S: Correspondence, 1956), #379.4]
• Letter from LP to Gentlemen, Chinese Chemical Society, RE: Thanks them for their invitation and repeats his regrets from his March 1 telegram. Says it may be possible for him to come to China in August and provides a list of possible lecture topics. [Telegram from Wulf to LP March 1, 1956, Telegram from Hou to LP April 5, 1956] [Filed under LP Correspondence: (H: Correspondence, 1956), #167.1]
• Letter from LP to Professor Richard A. Ogg, Jr., Chemistry Dept., Stanford University, RE: Looked for Ogg on Friday afternoon and then remembered that Ogg expected to be at Varian Associates at the time. Continues their discussion about aluminum borohydride. Wonders if Ogg has any evidence of a direct interaction between the aluminum and boron spins. Encloses a copy of a 1947 paper by LP on boron hydride. [Letter from Ogg to LP February 26, 1956] [Filed under LP Speeches: 1956s.7]
• Letter from LP to Rollie J. Myers, University of California Berkeley, RE: Expresses regret at Myers' decision to not accept the invitation to join the staff at Caltech as an Associate Professor. [Letter from Myers to LP February 27, 1956] [Filed under LP Correspondence: (M: Correspondence, 1956), #257.1]
• Letter from Roy A. Rauschenberg, YM-YWCA Graduate Group, University of Illinois, to LP RE: Invites LP to speak at the YM-YWCA Forum on April 6. The 30-45 minute talk should be designed for graduate students of varied backgrounds, perhaps on the topic of "The Impact of Science on Modern Man." Dinner will be held at 6 PM and the talk will begin at 6:45 PM, with a question period to follow. [Letter from LP to Rauschenberg March 7, 1956] [Filed under LP Speeches: 1956s.14]
• Letter from Sherman E. Smith, University of New Mexico, RE: Discusses R. Buckminister Fuller's work with the geodesic dome and its similarities with the structure of complex ionic compounds. Suggests a meeting between LP and Fuller. [Letter from LP to Smith March 14, 1956] [Filed under LP Correspondence: (S: Correspondence, 1956), #379.4]
• Note from Ogden Baine, Southern Methodist University, to LP RE: Says that he will serve as general chairman of the National Convention and hopes that LP will attend. [Letter from LP to Baine March 7, 1956] [Filed under LP Correspondence: (B: Correspondence, 1956), #38.2]
• Proposal Review No. N-69, Armour Research Foundation, Physics of Solids Section, RE: LP's rating is "poor." [Letter from Brownson to LP December 27, 1955] [Filed under LP Science: National Science Foundation: Correspondence, 1947, 1951-1989: Box #14.029, Folder #29.3]
• Proposed Itinerary: University of Utah, Salt Lake City [Filed under LP Travel: Box #1.002, Folder #2.1]
• Receipt from the Pacific Library Binding Co. for LP RE: Provides LP's order number and the price and details of a 10" book he ordered. [Filed under LP Correspondence: (P: Correspondence, 1956), #313.4]
• Telegram from Beatrice Wulf to LP RE: Informs LP of a telegram sent by the Chinese Chemical Society inviting him to give lectures in China. [Telegram from Chinese Chemical Society to LP February 16, 1956, Telegram and Letter from LP to Chinese Chemical Society March 1, 1956] [Filed under LP Correspondence: (H: Correspondence, 1956), #167.1]
• Telegram from LP to Chinese Chemical Society RE: Regrets that he cannot accept the invitation to come to China to give a lecture series. [Telegram from Wulf to LP March 1, 1956] [Filed under LP Correspondence: (H: Correspondence, 1956), #167.1]
• Telegram from Ta Chou to LP RE: Hopes that LP will be able to come to China to give a series of lectures for the Chinese Chemical Society. [Filed under LP Correspondence: (H: Correspondence, 1956), #167.1]

• Check from AHP to Faculty Club, U of C for $0.80. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.5]
• Check from AHP to Jerry Emery for $8.25. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1]
• Check from AHP to Mira Loma Mutual Water Company for $15.83. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.5]
• Check from AHP to Pacific Telephone and Telegraph for $16.08. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.5]
• Check from AHP to Southern California Edison Company for $57.18. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.5]
• Check from AHP to Southern Counties Gas Company for $24.45. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.5]
• Check from AHP to Standard Oil Company of California for $7.15. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.5]
• Letter from Garnet T. Page, Chemical Institute of Canada, to Gentlemen RE: Says that LP has offered to address the sections to whom the letter is addressed in late March. [Filed under LP Correspondence: (P: Correspondence, 1956), #313.4]
• Letter from LP to George and Billie Miller RE: Warmly thanks the couple for a birthday card they sent. Discusses recent happenings at his and AHP's home. [Filed under LP Correspondence: (M: Correspondence, 1956), #257.1]
• Letter from LP to H.S. Gutowsky, University of Illinois RE: Thanks Gutowsky for offering his house for him and AHP while in Illinois, but they will stay in the Illini Union. LP looks forward to talking with Gutowsky during the first few days of Gutowsky's return. [Letter from Gutowsky to LP February 15, 1956] [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1953-1975: Box #14.015, Folder #15.4
• Letter from LP to Louis Lineberry, Biological Warfare Laboratories, RE: Says Caltech teaches no courses in explosives chemistry. [Letter from Lineberry to LP February 23, 1956] [Filed under LP Correspondence: (L: Correspondence), #231.2]
• Letter from Professor Fred T. Wall, William Albert Noyes Laboratory, Chemistry and Chemical Engineering Dept., University of Illinois, to LP RE: Imagines that LP has already heard that a member of the Illinois American Legion's Anti-subversive Committee has objected to LP's appointment as George A. Miller Lecturer in Chemistry. Assures LP that the University is standing by LP's appointment. Invites LP and AHP to attend a reception on April 4. [Letters from LP to Wall January 27, 1956, March 7, 1956] [Filed under LP Speeches: 1956s.11]
• Telegram from LP to Dr. E.B. Chain, F.R.S., Istituto Superiore di Sanita, Italy, RE: June 6 is satisfactory for the Avogadro Lecture. [Telegram from Chain to LP February 27, 1956, Letter from LP to Chain March 20, 1956] [Filed under LP Speeches: 1956s.25]
• Telegram from LP to Polish Radio Warsaw RE: Convinced that the first steps can now be taken toward an effective agreement between the great powers on controlled disarmament. Effort should be initiated by an agreement to ban further tests of nuclear weapons. [Telegram from Polish Radio Warsaw to LP February 29, 1956] [Filed under LP Manuscripts of Articles: 1956a.1]

• Check from AHP to Richard Perry for $108.75. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1]
• Letter from J. A. Prins to J. W. M. DuMond , Caltech, RE: Describes his plans to visit physical institutes in the US during the summer. Inquires about visiting Caltech and possibly giving a lecture while there. Asks if DuMond or a colleague will attend the congress in July in Amsterdam. [Letter from LP to Prins March 16, 1956] [Filed under LP Correspondence: (P: Correspondence, 1956), #313.4]
• Letter from Pauline I. Geballe to LP RE: Thanks LP for a recent letter and for keeping in touch with her. Expresses pride at having been LP's first science teacher. [Filed under LP Correspondence: (Geballe, Pauline), #136.5]
• Memo from LP [Signed by Joan Harris] to Harrison Brown RE: A page from the New York Herald Tribune of interest to Rudd. [Filed under LP Correspondence: (Brown, Harrison), #32.4]

• Check from AHP to Adohr Milk Farms for $8.34. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.5]
• Check from AHP to McBride Animal Hospital for $15.00. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957" Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.5]
• Check from AHP to Mosse Incorporated for $83.49. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.5]
• Check from AHP to Silverwoods for $65.00. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.5]
• Letter from Steve Klein and Jack McDonough, Alpha Chi Sigma Fraternity, to LP RE: Invites LP to be the annual Alpha Chi Sigma fraternity speaker for 1955-56. [Letter from LP to Klein and McDonough March 9, 1956] [Filed under LP Correspondence: (K: Correspondence, 1956), #200.21]

• Check from AHP to Pearl M. Jordan for $100.00. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1]
• Letter from Alan G. Smith, Arkansas Polytechnic College, to LP RE: Requests reprint of LP's paper on Structural Chemistry recently printed in Science. Compliments LP on his appearance on "Youth Wants to Know." [Filed under LP Correspondence: (S: Correspondence, 1956), #379.4]
• Letter from Edward Friel, to LP. RE: Informs him that Ralph Evans has volunteered to call attention to his work at the Board of Directors of the Council. Encloses a short description of his techniques for color organization. [Filed under LP Correspondence: (F: Correspondence, 1958) #129.2]
• Letter from J. Rodman Seely, M.D., to Dora E. Young, The Helen Hay Whitney Foundation, RE: Informs of his progress covering the second year of his three year fellowship he is awarded. Includes an outline for his future. [Filed under LP Science: Helen Hay Whitney Foundation-Scientific Advisory Committee: Postdoctoral Biomedical Research Fellowship Applicants, 1956-1957: Box #15.005, Folder #5.4]
• Letter from LP to G. Scheibe, Physikalisch-Chemischen Institut, RE: Expresses his high opinion of Hans-Joachim Bruchner and Bruchner's thesis, "Quantenchemische Berechnungen der Bindungsenergie des Stickstoffmolekuls." [Letter from Scheibe to LP March 20, 1956] [Filed under LP Correspondence: (S: Correspondence, 1956), #379.4]
• Letter from LP to George E. Morris RE: Responds that there is not yet a basic chrome sulfate structure determination and explains his answer. Gives suggestions for Morris' question regarding the nature of valence. [Letter from Morris to LP February 23, 1956] [Filed under LP Correspondence: (M: Correspondence, 1956), #257.1]
• Letter from LP to H. L. Stewart RE: Reports Hultgren's findings on free energy of nitrous oxide gas. Cites specific sources of information on the topic. [Memo from LP to Hultgren February 28, 1956] [Filed under LP Correspondence: (S: Correspondence, 1956), #379.4]
• Letter from LP to Hans-Joachim Brüchner RE: Responds to a February 12 letter. Says he has written a letter to Prof. Scheibe. [Letter from Brüchner to LP March 17, 1956] [Filed under LP Correspondence: (B: Correspondence, 1956), #38.2]
• Letter from LP to Henry Allen Moe, John Simon Guggenheim Memorial Foundation RE: LP's report on Group Biochemistry. [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1953-1975: Box #14.015, Folder #15.4]
• Letter from LP to Henry Allen Moe, John Simon Guggenheim Memorial Foundation, RE: LP's report on Group Chemistry. [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1953-1975: Box #14.015, Folder #15.4]
• Letter from LP to Modesto Bargallo, Instituto Politecnico Nacional. [Letter from Bargallo to LP January 13, 1956] [Filed under LP Correspondence: (B: Correspondence, 1956), #38.2]

  5 March 1956

  Professor Modesto Bargallo

  Instituto Politecnico Nacional

  C. de Puebla, no. 74

  Mexico 7, D.F.

  Mexico

  Dear Professor Bargallo:

  I thank you very much for your kindness in sending me a copy of your book La Mineria y la Metalurgie en la America Espanola durante la epoca colonial, which I have examined with much interest.

  In particular, I was pleased to see the detailed discussion that you give of the outstanding work of Don Andres Manuel del Rio y Fernandez and his discovery of erythronium in 1801.

  It seems to me that the effort should be made to get the name of erythronium adopted officially by the International Union of Pure and Applied Chemistry. I have not had an opportunity to examine the original papers of del Rio, but I judge that there is no doubt that he has priority, by nearly 30 years.

  If you decide to raise the question again with the International Union of Pure and Applied Chemistry, I should be glad to join with you in the effort.

  Sincerely yours,

  Linus Pauling:W

• Letter from LP to Theodore Granik, Director, "Youth Wants to Know," RE: Thanks Granik for his gift of membership in the Fruit-of-the-Month Club. Enjoyed appearing on "Youth Wants to Know." [Filed under LP Speeches: 1956s.1]
• Letter from Professor M. Kirsch, Chemistry Dept., University of British Columbia, to LP RE: Has heard that LP will be visiting Vancouver and that he has offered to address the local section of the Chemical Institute of Canada. Would be very willing for LP to do so on March 24. LP should let them know when he plans to arrive and whether he will have some time for visiting departments and research institutions on campus. LP should also let them know what size slides he will use and the topic of his address. [Letter from LP to Kirsch March 9, 1956] [Filed under LP Speeches: 1956s.8]
• Letter from W. E. Cornatzer, University of North Dakota, to LP RE: Invites LP to come to the University of North Dakota Medial School to give a lecture. Discusses detail of the lecture and the Medical School at University of North Dakota. [Letter from LP to Cornatzer March 9, 1956] [Filed under LP Correspondence: (C: Correspondence, 1956), #74.24]
• Letter from William G. Esmond to Dr. Karl Singer, Michael Reese Hospital, cc: LP, RE: Explains his interest in hematology and sickle cell anemia. Presents an idea for a method that might inhibit sickling in vitro or lead to treatment of patients with the disease. [Filed under LP Correspondence: (E: Correspondence, 1956), #112.22]

• Letter from C.E. Cummings, Texas Company, to LP RE: Would like LP's opinion of Stanley L. Grotch who has applied for employment at his Laboratories as a research chemical engineer. [Letter from LP to Cummings March 13, 1956] [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1953-1975: Box #14.015, Folder #15.4]
• Letter from Dr. R.B. Berkoff, Secretary, Manitoba Section, Chemical Institute of Canada, to LP RE: Pleased that LP will be visiting Winnipeg and that he has agreed to speak to the Manitoba Section of the Chemical Institute of Canada. Will arrange a luncheon meeting of the Section for noon on March 31. Dr. I. Hlyanka will be contacting LP several days before the luncheon. [Letter from LP to Berkoff March 13, 1956] [Filed under LP Speeches: 1956s.9]
• Letter from LP to Albert V. Baez, University of Redlands, RE: Says he is now a member of the Society for Social Responsibility in Science. Declines the invitation to speak before the SSRS. [Letter from Baez to LP February 16, 1956] [Filed under LP Correspondence: (S: Correspondence, 1956), #379.4]
• Letter from LP to Colonel J. H. Rothschild, Chemical Corps Research and Development Command, RE: Congratulates Rothschild on his appointment as Commanding Officer of the Research and Development Command. [Filed under LP Correspondence: (R: Correspondence, 1956), #341.2]
• Letter from LP to Dr. Harry B. Goresline RE: Congratulates Goresline on his promotion to Associate Scientific Director. [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1953-1975: Box #14.015, Folder #15.4]
• Letter from LP to Dr. Leo A. Shinn, Office of Naval Research, RE: LP discusses in detail the question Shinn raised in their telephone conversation on March 1, 1956 regarding the item of $17,000 for X-ray equipment in their proposed budget for the first year of the contract. [Letter from Shinn to LP and Corey February 28, 1956] Notice of Research Project: "The Structure and Properties of Proteins and Synthetic Polypeptides," submitted by LP to the Bio-Sciences Information Exchange. [Filed under LP Science: Office of Naval Research: Correspondence, Memoranda, Notes and Assorted Materials re: "The Structure and Properties of Proteins and Synthetic Polypeptides," Contract Nonr 220(05) (Chemistry 32), 1951-1963: Box #14.032, Folder #32.2]
• Letter from LP to George Wald, Harvard University, RE: Addresses the questions of the investigation of isomers. Presents Eichhorn's opinion on the matter. [Memo from Eichhorn to LP February 29, 1956, Letter from Wald to LP March 26, 1956] [Filed under LP Correspondence: (Wald, George), #431.1]
• Letter from LP to Paul E. Pulliam RE: Attempts to answer questions posed by Pulliam regarding topics in LP's College Chemistry. Questions some of Pulliam's reasoning regarding enthalpy and entropy regions of energy levels and the reaction of N and O2. Briefly discusses the determination of equilibrium. [Letter from Pulliam to LP February 24, 1956] [Filed under LP Correspondence: (P: Correspondence, 1956), #313.4]
• Letter from LP to Robert B. Scott, Jr., University of Alabama, RE: Discusses a letter written by President Carmichael and recent actions taken by Carmichael regarding recent events at the University of Alabama. Maintains his decision to not come to University of Alabama in April. [Letter from Scott, Jr. to LP February 16, 1956] [Filed under LP Correspondence: (S: Correspondence, 1956), #379.4]
• Letter from LP to Sister M. Liguori, St. Scholastica's College, RE: Sends a photo of himself and a copy of his Nobel address to St. Scholastica's for use in their scientific museum. [Letter from Liguori to LP January 18, 1956] [Filed under LP Correspondence: (L: Correspondence), #231.2]
• Letter from LP to Stuart H. Parker RE: Regrets that he was unable to see Parker before his departure. Offers best wishes in Parker's career. [Letter from Parker to LP February 21, 1956] [Filed under LP Correspondence: (P: Correspondence, 1956), #313.4]
• Letter from LP to W. Keith Hall, Mellon Institute of Industrial Research, RE: Discusses issues from Hall's manuscript. Speaks about activation energies of copper-nickel alloys. [Letter from Hall to LP February 10, 1956] [Filed under LP Correspondence: (H: Correspondence, 1956), #167.1]
• Letter from Paul Doty to Richard Marsh, cc: LP, RE: Accepts Marsh's invitation to speak at a General Chemistry seminar. Discusses lecture topics. [Filed under LP Correspondence: (Doty, Paul), #96.11]
• Letter from Robert F. Gould, Managing Editor, Chemical and Engineering News, to LP RE: Wonders if LP will review the book Fibrous Proteins and Their Biological Significance or suggest someone else who is qualified to do so. [Letter from Wulf to Gould March 14, 1956] [Filed under LP Manuscripts of Articles: 1956a.6]
• Letter from Robert L. Robinson, American Psychiatric Association, to LP RE: Still awaiting LP's summary of the paper he is to present at the APA Annual Meeting. The deadline was March 1, but since so many participants sent their summaries on time, has been able to extend the deadline to March 15. [Filed under LP Speeches: 1956s.20]
• Letter from William V. Consolazio, National Science Foundation, to LP RE: Asks LP to submit a short, informal progress report at the end of each year for grant NSF-G1189. Also requests reprints of publications made under this grant. [Letter from LP to Consolazio March 15, 1956] [Filed under LP Science: National Science Foundation: Grants, Exhibits, 1954-1964: Box #14.030, Folder #30.4]

• Letter from Arthur L. Pollard, Biological Laboratory, Knoxville, TN, to LP RE: Encloses and discusses photomicrographs of a macro-helical structure in vessels of vascular plants. Details the preparation of the specimens. [Letter from LP to Pollard March 13, 1956] [Filed under LP Correspondence: (P: Correspondence, 1956), #313.4]
• Letter from Henry Allen Moe, John Simon Guggenheim Memorial Foundation, to LP RE: Thanks LP for this judgements of the applicants in group Chemistry and Biochemistry. Encloses statements from three referees concerning three candidates in Chemistry and Biochemistry. [Letters from LP to Moe March 5, 1956, March 12, 1956] [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1953-1975: Box #14.015, Folder #15.4]
• Letter from Joe Kainz, President, Illinois Chapter, Delta Upsilon, to LP RE: Looking forward to LP's George A. Miller lectures in April. Invites LP to speak at one of the faculty guest nights during his stay. Gives possible dates. [Letter from LP to Joe Kainz March 14, 1956] [Filed under LP Speeches: 1956s.15]
• Letter from LP to K.T. Rogers, Zoology Dept., Oberlin College, RE: Will plan to lecture at Oberlin on October 16-18. [Letters from Rogers to LP February 29, 1956, April 13, 1956] [Filed under LP Speeches: 1956s.33]
• Letter from LP to Ogden Baine, Southern Methodist University, RE: Regrets that he cannot come to Dallas for the National Convention. [Letter from Baine to LP March 1, 1956] [Filed under LP Correspondence: (B: Correspondence, 1956), #38.2]
• Letter from LP to Professor A.N. Campbell, Chemistry Dept., University of Manitoba, RE: Accepts invitation to speak before the Chemistry Club at 1:30 on March 29. Probably should not spend very much time in the Department that afternoon because he must be fresh at the time of the Merck Lecture itself. [Letter from Campbell to LP February 29, 1956] [Filed under LP Speeches: 1956s.9]
• Letter from LP to Professor Fred T. Wall, William Albert Noyes Laboratory, Chemistry and Chemical Engineering Dept., University of Illinois, RE: A couple reporters telephoned LP about the American Legion; LP did not make a statement. LP and AHP will arrive in Urbana on April 4 and would be able to attend the proposed reception that evening. [Letters from Wall to LP March 2, 1956, March 23, 1956] [Filed under LP Speeches: 1956s.11]
• Letter from LP to Roy A. Rauschenberg, YW-YMCA Graduate Group, University of Illinois, RE: Accepts invitation to speak before the YW-YMCA Forum on April 6. Rauschenberg should check to see when LP's lecture is scheduled for that day. If there is no conflict, then LP will be willing to lecture on the topic of "Science in the Modern World." [Letters from Rauschenberg to LP March 1, 1956, March 16, 1956] [Filed under LP Speeches: 1956s.14]
• Letter from O. J. Walker, Chemical Institute of Canada, to LP RE: Invites LP to speak at a Western Regional Conference at Edmonton, Alberta. [Letter from LP to Walker March 14, 1956] [Filed under LP Correspondence: (W: Correspondence, 1956), #444.4]
• Letter from Peter Pauling to Linus Pauling RE: Peter writes to discuss issues with the Draft Board and summer travel plans. [Filed under LP Biographical: Box #5.042, Folder #42.3]
• Letter from Professor Ralph A. Beebe, Chemistry Dept., Amherst College, to LP RE: LP's formal lecture is scheduled for April 26 at 8 PM in the Johnson Chapel. Hopes that LP will be able to speak with the chemistry students and staff at 4:30 PM on April 27. Hopes that LP and AHP will be able spend several days in Amherst. Would like to make their stay as enjoyable as possible. [Letter from Beebe to LP October 19, 1955, Letter from LP to Beebe March 13, 1956] [Filed under LP Speeches: 1956s.19]
• Letter from Richard A. Ogg, Jr., Stanford University, to LP RE: Discusses a structural problem posed by experiments on aluminum borohydride. Requests LP's comments on the matter. [Letter from LP to Ogg, Jr.] [Filed under LP Correspondence: (O: Correspondence, 1956), #300.18]
• Letter from William G. Esmond to LP RE: Presents his ideas regarding a method of inhibiting sickling of red blood cells of patients with sickle cell anemia. Asks LP for comments or ideas. [Letter from LP to Esmond March 12, 1956] [Filed under LP Correspondence: (E: Correspondence, 1956), #112.22]
• Letter from the Secretaries, Academy of Sciences of the Institut de France, to LP RE: Written in French. Explains that the volumes of the Academy Reports are becoming so long that they must be divided into sections to be examined. Asks LP in what form he would like to receive the volume. [Filed under LP Correspondence: (I: Correspondence, 1956), #185.17]
• Typescript: "The Molecular Basis of Genetics," Summary paper to be presented at the APA Annual Meeting. [Filed under LP Speeches: 1956s.20]

• Check from AHP to Athenaeum for $6.62. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.5]
• Check from AHP to Poppy Cleaners and Dryers for $12.97. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.5]
• Letter from Dr. Frank D. White, Biochemistry Dept., University of Manitoba, to LP RE: Has made the tentative arrangements for LP's visit to Winnipeg. Suggests that Wednesday be devoted to the Medical College, with the talk to the students scheduled for noon. Thursday should be devoted to the University Campus, with LP delivering the Merck Lecture at 8:30 PM. Dr. Spitzer will entertain LP and AHP on Friday. A meeting of the Manitoba Section of the Chemical Institute of Canada may be scheduled for Saturday. White and his wife invite LP and AHP to dine with them on Wednesday. [Letters from LP to White February 14, 1956, March 13, 1956] [Filed under LP Speeches: 1956s.9]
• Letter from LP to J. Lewin, Centre National de Transfusion Sanguine, RE: Invites Lewin to come to Pasadena for a year to participate in research on the structure of proteins. Discusses details of the proposed appointment. [Letter from Lewin to LP March 30, 1956] [Filed under LP Correspondence: (L: Correspondence), #231.2]

• Letter from Jesse W. M. DuMond, Caltech, RE: Looks forward to Prins' visit to Pasadena and says he has passed his letter on to LP. Discusses possible lecture topics and his shift in interest away from x-rays. Requests information regarding production of large monocrystals of aluminum in the form of sheets. [Letter from Prins to DuMond March 3, 1956, Letter from LP to Prins March 16, 1956] [Filed under LP Correspondence: (P: Correspondence, 1956), #313.4]
• Letter from LP to Linus Pauling, Jr. [Filed under LP Biographical: Box #5.037, Folder #37.8]

  9 March 1956

  Dear Anita and Linus:

  I am writing to tell you about my situation with respect to research, and about the disposal of the $50,000 fund.

  At the present time there remains unallocated the sum of $7735.10. A large part of the allocated sum has not yet been expended-only $2062.50 has been expended so far in salaries (for Dr. Murayama, who is assisting me on work on hemoglobin). The remaining salary items are for men whom I have appointed for the coming year, including Dr. Murayama. The other three have not yet taken up residence here.

  The expenditures and commitments are as follows:

  Chemical benches, hoods, for my laboratory...................................$11,902.40

  Electrophoresis apparatus and refrigerators for protein research...............5,800.00

  Salary of Dr. F. Helfferich, 1956-57...........................................5,400.00

  Salary of Dr. J. Lewin, 1956-57................................................7,500.00

  Salary of Prof. H. Jehle, 1956-57..............................................5,000.00

  Salary of Dr. M. Murayama, 1 January 1956-16 June 1957.........................6,562.50

  Balance........................................................................7,735.10

  I am especially in two research programs at the present time, both of them in their beginning stages. I think that it will be possible within a few years to make a complete structure determination of a crystalline globular protein, such as hemoglobin, insulin, ribonuclease, etc. This problem is an extremely difficult one. The hemoglobin molecule, with molecular weight 68,000, contains about 7,500 atoms other than hydrogen, and the job of making a complete structure determination involves determining three cartesian coordinates for each of these atoms. X-ray techniques have not in the past been powerful enough to permit such a job to be done. I believe that we have discovered a way of doing the job, provided that it is worked at intensively, for a long time-several years. The first step in making use of our new method is to grow crystals of a protein and two inorganic complexes, one a cation, such as Ta₆Co₁₂ ⁺⁺ and the other an anion, such as W₁₂PO₄₀ ^---. There is only one man in the world who has had much experience in attacking the problem of growing crystals of this sort. He is Dr. Jacques Lewin, who is assistant director of the Centra National de Transfusion Sanguine, in Paris. I have written to him, offering him appointment for one year, as Senior Fellow in Research. I hope that he will be interested to come to Pasadena, and that he can obtain leave from his post in Paris for this purpose. We should be able to learn something about his special techniques during his visit here, and he himself might, in the course of one year, be able to grow just the crystals that we need to begin our attack on this problem.

  Professor Herbert Jehle is Professor of Theoretical Physics at the University of Nebraska. He has been working for some years on the quantum mechanical theory of specific forces operating between proteins and other biological molecules. I have been interested in this field too, and have invited him to come here for one year, in order that we might collaborate. The University of Nebraska is giving him part of his salary, $2500, for the year, permitting him to accept our offer. I am hoping also to get him to work on some theoretical aspects of our method of determining the structure of globular proteins.

  Dr. Murayama is working on the structure of proteins in relation to mental disease. He is at present studying hemoglobin obtained from the blood of patients with phenyl pyruvic oligophrenia. I expect that Dr. Helfferich, when he arrives in Pasadena, will also collaborate in the work on mental deficiency.

  I may say that it may be possible to transfer some of these men to other funds. I have applied, as you know, to the Ford Foundation for a grant for support of our work on mental deficiency. The Ford Foundation has not yet reported its decision on my application. The Langley Porter Clinic, in San Francisco made four applications, referring to four different projects that they proposed, and they have been notified already that all four of their applications have been turned down. I think that it may be that the Ford Foundation is planning to concentrate its support on private institutions. At any rate, I am hoping that they will act favorably on my application.

  Also, we have applied to the Navy for a contract to permit an intensive attack on the problem of the determination of the structure of crystalline globular proteins. This is really a great problem-it has the possibility of leading to great advance in our understanding of the human body, and to significant contributions to biology and medicine. It is a problem that can be solved only by an intensive attack over a long period of years. Now that I have had my 55th birthday, I am thinking about how long I have remaining to me, for effective scientific work, and I suppose that I should be thinking about 10 years as a period of time in which I must do what I want to do. I think that the problem of the structure of globular proteins can be solved within 10 years; perhaps one complete structure determination can be made within 5 years, if we are able to attack the problem vigorously enough. It would not be enough, of course, to determine the structure of a single protein-if the structure of hemoglobin could be determined, one would still want to know the structure of ribonuclease, pepsin, trypsin, or some other enzyme (perhaps of several enzymes), and of insulin or of some other hormone (perhaps of several)-I suppose that the physiologists, biochemists, and medical men would not be satisfied until complete structure determinations had been made of a rather large number of protein molecules. The mental deficiency project is different in nature. There is almost infinite possibility for making progress in the attack on this problem.

  Mama and I are getting along well. We are making plans for entertaining Professor Hugo Theorell, and his wife, week after next. Professor Theorell was the recipient of the 1955 Nobel Prize for Medicine. He is an old friend of ours-he came to work in our laboratory in 1939 or 1940. You may remember him from that time-a rather stocky man badly crippled by polio, so that he walks with difficulty with the aid of two canes.

  Mama and I are making an eastern trip. We shall stop in Portland for one day, in Vancouver, and then go to Winnipeg, where I am to give a lecture in the Medical School. Then we go to the University of Illinois, Yale, Amherst, and home. I am giving an address at the annual meeting of the American Psychiatric Association in Chicago.

  Also, we are planning to make a short trip to Europe during June. I have been invited to deliver the Avogadro Commemoration Address in Rome.

  Much love from

  Linus Pauling:W

• Letter from LP to Prof. Herbert Harned, Yale University, RE: Says he and AHP cannot accept Harned's invitation to stay at his home while in New Haven. Mentions Harned's remarks about the preparation of columbium subchloride. [Filed under LP Correspondence: (Harned, Herbert), #151.13]
• Letter from LP to Professor M. Kirsch, Chemistry Dept., University of British Columbia, RE: Pleased to address the Vancouver Section of the Chemical Institute of Canada on March 24. LP and AHP will arrive in Vancouver by train on March 24 at 12:15 PM. Will leave for Winnipeg the next day at 8 PM. Requests that Kirsch reserve a hotel room for them. Afraid that Saturday afternoon will not be a good time to visit the campus. Would like to see some of the people that he met when he visited before. Offers to speak on "The Structure of Proteins" or "Abnormal Hemoglobin Molecules in Relation to Disease." [Letters from Kirsch to LP March 5, 1956, March 14, 1956] [Filed under LP Speeches: 1956s.8]
• Letter from LP to Steve Klein and Jack McDonough, Alpha Chi Sigma Fraternity, RE: Explains he must decline the fraternity's invitation to be their annual speaker due to his busy schedule. [Letter from Klein and McDonough to LP March 4, 1956] [Filed under LP Correspondence: (K: Correspondence, 1956), #200.21]
• Letter from LP to W. E. Cornatzer, University of North Dakota, RE: Declines Cornatzer's invitation to give a lecture at the University of North Dakota. [Letter from Cornatzer to LP March 5, 1956] [Filed under LP Correspondence: (C: Correspondence, 1956), #74.24]
• Letter from LP to William Moffitt, Harvard University, RE: States that Moffitt has been recommended for appointment as Associate Professor of Theoretical Chemistry at Caltech. Briefly discusses the position. [Letter from LP to Moffitt March 14, 1956] [Filed under LP Correspondence: (M: Correspondence, 1956), #257.1]
• Letter from Murray Vernon King, Polytechnic Institute of Brooklyn, to LP RE: Requests LP's participation in an advisory committee to organize a symposium on protein structure. Goes on to describe the details and purpose of the symposium. [Letter from LP to King March 16, 1956] [Filed under LP Correspondence: (K: Correspondence, 1956), #200.21]
• Letter from President H.H. Saunderson, University of Manitoba, to LP RE: Heard that LP plans to visit the University toward the end of March this year. Invites LP to be the guest of honor at an informal luncheon on March 29 at 12:30 PM. Invites AHP as well. [Letter from LP to Saunderson March 15, 1956] [Filed under LP Speeches: 1956s.9]
• Letter from Roy J. Kuffner, Fisk University, to LP RE: Describes his efforts to stimulate enthusiasm in his chemistry students with outside reading and questions about philosophy. Asks for LP's comments on his ideas. [Letter from LP to Kuffner March 19, 1956] [Filed under LP Correspondence: (K: Correspondence, 1956), #200.21]
• Magazine Article: "Linus Pauling...," [re: George A. Miller Lectures] Science, March 9, 1956. [Filed under LP Biographical: LP Scrapbooks, 1956-1960: Box #6.007, Folder #7.9]

• Check from AHP to Elizabeth Gillette for $10.00. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1]
• Check from AHP to Friends Committee on Legislation for $10.00. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.5]
• Check from AHP to Pasadena Red Cross for $10.00. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1]
• Letter from W. F. K. Wynne-Jones, King's College, to LP RE: Discusses details of his forthcoming visit to America. [Letter from LP to Wynne-Jones March 16, 1956] [Filed under LP Correspondence: (W: Correspondence, 1956), #444.4]

• Check from AHP to B.F. Allen for $10.00. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.5]
• Check from AHP to Gould Music Company for $2,420.00. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1]
• Check from AHP to Happy's for $81.15. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.5]
• Check from AHP to R. Walbridge Pool Company for $27.50. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.5]
• Journal Article: "Child Disease Linked to New-Found Enzyme," Medical News, (March 12, 1956). [Filed under LP Newspaper Clippings: 1956n.1]
• Letter from Beatrice Wulf, Secretary to LP, CIT, to Professor Ralph L. Shriner Chemistry Dept., State University of Iowa, RE: LP and AHP expect to arrive in Iowa City on April 3 at 4:07 PM and will depart that night at 11:10 PM, so it will not be necessary to make a hotel reservation for them. Presumes that LP's lecture can be scheduled for early evening. [Letters from Shriner to LP February 22, 1956, March 14, 1956] [Filed under LP Speeches: 1956s.13]
• Letter from Beatrice Wulf, Secretary to LP, to Morrison Hotel, Chicago, Illinois, RE: Requests that the single reservation for LP in connection with the APA Meeting be changed to a double reservation, as AHP will accompany him. [Filed under LP Speeches: 1956s.21]
• Letter from Beatrice Wulf, Secretary to LP, to Professor R.E. Rundle, Chemistry Dept., Iowa State College, RE: LP and AHP will arrive in Des Moines on April 1 at 3:05 PM by plane. Wonders about transportation between Des Moines and Ames. LP and AHP will need a hotel reservation for the nights of April 1 and 2. They will leave on April 3 at 2:10 PM by train. Since they will be starting on their eastern trip on March 23, hopefully Rundle can let them know about the transportation between Des Moines and Ames, as well as about the hotel reservations, before then. [Letter from Rundle to LP February 15, 1956, Letter from Rundle to Wulf March 14, 1956] [Filed under LP Speeches: 1956s.12]
• Letter from Beatrice Wulf, Secretary to LP, to Robert W. McKinney, Corresponding Secretary, Phi Lambda Upsilon, Chemistry Dept., University of Kansas, RE: LP and AHP plan to arrive in Kansas City on May 5 at 3:20 PM. Accepts McKinney's offer to drive them to Lawrence. LP and AHP will leave Kansas City at 3:55 PM on May 8. Requests that a hotel reservation for LP and AHP on Saturday, Sunday, and Monday nights. [Letter from LP to McKinney December 19, 1955, Letter from McKinney to LP March 21, 1956] [Filed under LP Speeches: 1956s.22]
• Letter from Eric S. Proskauer, Interscience Publishers, Inc. to LP RE: Asks LP to sign a release giving the Sir Robert Robinson Foundation rights to collect all royalties on the publication, "Perspectives in Organic Chemistry." [Filed under LP Correspondence: (I: Correspondence, 1956), #185.17]
• Letter from LP to Henry Allen Moe, John Simon Guggenheim Memorial Foundation, RE: LP believes that both Dr. Jonas E. Richmond and Mr. Michell J. Sienko should be considered for a Fellowship but believes that Dr. S.W. Terrill should not be. [Letters from Moe to LP March 7, 1956, March 14, 1956] [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1953-1975: Box #14.015, Folder #15.4]
• Letter from LP to R. Buckminister Fuller RE: Suggests that he visit with Fuller this week at Caltech. [Note from Fuller to LP, 1956] [Filed under LP Correspondence: (Fuller, Buckminister), #121.4]
• Letter from LP to William G. Esmond RE: Discusses investigations of the effect of oxidation of hemoglobin to methemoglobin. Suggests that Esmond contact Dr. George Burch for further information. [Letter from Esmond to LP March 7, 1956] [Filed under LP Correspondence: (E: Correspondence, 1956), #112.22]
• Letter from Professor Arthur W. Galston, Osborn Botanical Laboratory, Yale University, to LP RE: Pleased to hear that LP and AHP will be coming to New Haven in April. Understands that LP and AHP may wish to stay with Professor Harned again, but invites them to stay with him and his wife. [Letter from Galston to LP April 10, 1956] [Filed under LP Speeches: 1956s.17]
• Memo from LP to Barclay Ray RE: A card from Guy Turco requesting a sample of zunyite. [Filed under LP Correspondence: (R: Correspondence, 1956), #341.2]

• Check from LP to Ingham, Coates, and Payne for $26.00. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.3]
• Letter from J. English, Yale University, to LP RE: Asks if LP could give a talk in the Department of Chemistry while in New Haven in April. [Letter from LP to English March 16, 1956] [Filed under LP Correspondence: (E: Correspondence, 1956), #112.22]
• Letter from LP and AHP to Board of Regents, American College of Physicians, RE: Accept invitation for the Reception and Dinner at 7 PM on April 15 at the Biltmore Hotel in Los Angeles. [Filed under LP Speeches: 1956s.16]
• Letter from LP to Arthur L. Pollard, Biological Laboratory Knoxville, TN, RE: Expresses his interest in the micro-helical structures displayed in the photomicrographs Pollard sent him. [Letter from Pollard to LP March 7, 1956] [Filed under LP Correspondence: (P: Correspondence, 1956), #313.4]
• Letter from LP to Dr. C.E. Cummings, Texas Laboratory, RE: LP gives Stanley L. Grotch a good recommendation. [Letter from Cummings to LP March 13, 1956] [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1953-1975: Box #14.015, Folder #15.4]
• Letter from LP to Dr. Frank D. White, Biochemistry Dept., University of Manitoba, RE: Accepts invitation to dine with White and his wife on Wednesday. The other arrangements seem satisfactory. [Letter from ,White to LP March 8, 1956] [Filed under LP Speeches: 1956s.9]
• Letter from LP to Dr. R.B. Berkoff, Secretary, Manitoba Section, Chemical Institute of Canada, RE: Will keep noon on March 31 free in case Berkoff arranges a luncheon meeting of the Section. [Letter from Berkoff to LP March 6, 1956] [Filed under LP Speeches: 1956s.9]
• Letter from LP to G.B.B.M. Sutherland, University of Michigan, RE: Congratulates Sutherland on his appointment as Director of the National Physical Laboratory. [Letter from Sutherland to LP March 27, 1956] [Filed under LP Correspondence: (Sutherland, G.B.B.M, 1939, 1956), #341.2]
• Letter from LP to Professor Ralph A. Beebe, Chemistry Dept., Amherst College, RE: LP and AHP plan to drive from New Haven to Amherst on April 25 and arrive in the middle of the afternoon. Would like to attend Thurgood Marshall's lecture that evening. LP will lecture on April 26 at 8 PM and then deliver a chemistry seminar talk on April 27 at 4:30 PM, perhaps on the structure of proteins. [Letters from Beebe to LP March 7, 1956, March 21, 1956] [Filed under LP Speeches: 1956s.19]
• Letter from Maria Migliorini, student at St. Clement High, to LP RE: Requests information regarding LP's studies of protein molecules in regard to mutation, disease and amino acids for use in a science fair project. [Filed under LP Correspondence: (M: Correspondence, 1956), #257.1]
• Letter from Vasudev A. Vyas, Dharmendrasinhji College, to LP RE: Hopes to do post-doctoral work at Caltech under LP's supervision. Outlines his qualifications. [Letter from LP to Vasudev A. Vyas March 22, 1956] [Filed under LP Correspondence: (V: Correspondence, 1956), #427.16]
• Memo from LP to Miss Walter RE: Attached is an application to the Public Health Service for renewal of Research Grant 4276, requests that the application be signed and sent off to Public Health Services. Supporting materials attached. [Filed under LP Science: United States Public Health Service: Assorted Grants, 1954-1964: Box #14.042, Folder #42.1]
• Memo from LP to Robert B. Corey. [Filed under LP Manuscripts of Articles: 1956a.4]

  TO R. B. Corey FROM Linus Pauling DATE 13 March 1956

  SUBJECT Proposed calculation, relating to crystalline globular proteins

  I suggest that you have Dr. Marsh and assistants carry out a calculation as a test of methods of determining the structure of crystalline globular proteins.

  The simple calculation involves the formulation of a one-dimensional structure, the calculation of the real and the imaginary parts of the amplitude of the scattered wave, A and B, and the use of these values, extending over various ranges of interatomic distances, to evaluate various Fourier series, in order to see what ranges of interatomic distances must be used to get resolution of atoms and identification of atoms.

  I suggest that the work be done, as a first step, roughly in the following way. Let us take a one-dimensional structure, with a₀ = 30 A. The unit is to have one Fe at 0.000, one Cl at 0.210, and 12 C at 0.080, 0.125, 0.290, 0.370, 0.420, 0.470, 0.540, 0.630, 0.700, 0.750, 0.840, and 0.900. These coordinates make interatomic distances along the line cover the range from 1.35 A to 3.00 A. I suggest that A and B be calculated for orders h from 1 to 30, representing interplanar distances from 30 A to 1 A. The f value of carbon might be used as the basis of the calculation; I think that it would be good enough to take that for chlorine as 3 times that for carbon, and for iron as 5 times that for carbon.

  These values of A and B could then be used to evaluate the Fourier series representing the electron density, by a number of different calculations, corresponding to use of orders of reflection as follows: 1 to 30; 6 to 30; 8 to 30; 10 to 30; 15 to 30; 10 to 20; 10 to 15; others indicated by the results.

  The Fourier series obtained in this way could be discussed with respect to errors in the coordinates of each atom, and also in the height of the peak representing each atom. What limitation of the range causes an atom to be missed? What limitation of the range leads to the introduction of phantom atoms - peaks in positions where no atom was present?

  After these questions have been answered, a suitable range may be selected, perhaps 10 to 30, reflections from 3 A to 1 A spacing, and the calculation repeated after random 10% errors have been introduced into the values of A and B.

  Probably the next step that will have to be made is to carry out a similar calculation for a two-dimensional structure, involving about 100 atoms. It might be possible to generalize from the results of the one-dimensional problem and the two-dimensional problem to conclusions valid for the three-dimensional problem; but it probably will be worth while to carry out some sort of detailed theoretical treatment of this sort also for the three-dimensional problem.

  (signed) L. P.

  Linus Pauling:W

• Research Notebook of LP RE: Correspondence: Linus Pauling to R.B. Corey re: a proposed calculations with crystalline globular proteins, March 13, 1956, Addenda. [Filed under LP Research Notebooks: 28R]

• Check from AHP to Allan Knight Chalmers, Chairman for $10.00. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.5]
• Check from AHP to Pacific Telephone and Telegraph for $33.57. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.5]
• Check from AHP to Safeway Stores for $50.00. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1]
• Letter from Beatrice Wulf, Secretary to LP, to Robert F. Gould, Managing Editor, Chemical and Engineering News, RE: LP is willing to review the book Fibrous Proteins and Their Biological Significance. [Letters from Gould to LP March 6, 1956, March 20, 1956] [Filed under LP Manuscripts of Articles: 1956a.6]
• Letter from David C. Young, American Chemical Society, to LP RE: Invites LP to speak before the Midland Section of the American Chemical Society. [Letter from LP to Young March 14, 1956] [Filed under LP Correspondence: (Y: Correspondence, 1956), #462.12]
• Letter from Dr. Domenico Marotta, Istituto Superiore di Sanita, Italy, to LP RE: The Academia dei XL plans to commemorate the life of Avogadro on June 6. Invites LP to deliver a 40-minute Commemoration Lecture on Avogadro's work. An International Prize for Chemistry will be awarded at the ceremony. Requests the text of LP's lecture or a summary. The Academy would cover LP's expenses during his trip. Would like to know how much time LP would have to tour Italian universities after the ceremony. [Letter from LP to Marotta March 20, 1956] [Filed under LP Speeches: 1956s.25]
• Letter from Henry Allen Moe, John Simon Guggenheim Memorial Foundation, to LP RE: Thanks LP for his opinions. [Letter from LP to Moe March 12, 1956] [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1953-1975: Box #14.015, Folder #15.4]
• Letter from L. A. Dubridge to Robert S. Farrar, Santa Ana City Schools, cc: LP, RE: Discusses an upcoming visit from Prof. Drahowzal to Caltech. Suggests that Drahowzal might find a more available position at USC or UCLA . [Filed under LP Correspondence: (F: Correspondence, 1956), #128.21]
• Letter from LP to Abraham Lederman, Teachers Union of the City of New York, RE: Provides a statement to the Teachers Union as requested by Lederman congratulating the Union on its work. [Letter from Abraham Lederman to LP March 1, 1956] [Filed under LP Correspondence: (L: Correspondence), #231.2]
• Letter from LP to B. Rajewsky, Max Planck Institute for Biophysics, RE: Discusses the possibility of Dr. Heinz Dannenberg's promotion to Wissenschaftlichen Mitglied of his Institute. Says he does not know Dannenberg well enough to make a statement about his personal qualifications. [Letter from Rajewsky to LP March 6, 1956] [Filed under LP Correspondence: (R: Correspondence, 1956), #341.2]
• Letter from LP to Joe Kainz, President, Illinois Chapter, Delta Upsilon, RE: Thanks Kainz for the invitation to speak at a dinner at the Delta Upsilon house. Suggests the date April 10. [Letter from Kainz to LP March 7, 1956] [Filed under LP Speeches: 1956s.15]
• Letter from LP to Linus Pauling, Jr. [Filed under LP Biographical: Box #5.037, Folder #37.8]

  14 March 1956

  Dear Anita and Linus:

  I note that I have forgotten one item, in reporting to you about the expenditures on the $50,000 fund.

  I have allocated $1200 of the fund as the salary for 3 months for Professor A. Christomanos.

  Professor Christomanos is the Professor of Chemistry in the University of Athens. He came here in September 1955, as the recipient of a Smith-Mundt Fellowship, with the plan of carrying on research in the field of Chromatographic analysis of proteins. I recommend that, after a preliminary period of devoted to learning the techniques of amino-acid chromatography from Dr. Walter A. Schroeder of our laboratories, he attack the problem of the nature of the end groups of the hemoglobin molecules in the blood of patients with phenylpyruvic oligophrenia. He has now begun work on this problem, which may throw some light on the nature of this kind of mental deficiency. The idea is that the presence of a large amount of phenylalanine in the body fluids of patients with this disease may cause abnormalities in the amino-acid composition of protein molecules, and Professor Christomanos will examine the amino acids at the free amino end of the polypeptide chains, and perhaps the adjacent ones also, to see whether a phenylalanine residue gets into these positions by mistake. Normally valine is present at the end of the polypeptide chains, and leucine in the second position.

  Dr. Christomanos has been effective in his work and wants to stay longer than the period for which his Smith-Mundt was originally granted. He applied for an extension, and was given a two months' extension, for the months of April and May. I then told him that we would give him an appointment for three more months, ending August 31, 1956. He should be able to do a good job on his problem in this time.

  Of course, if the Ford Foundation grant is made, I shall be able to transfer him to this budget.

  Mama and I are planning to spend the month of June in Europe. We probably shall leave Pasadena, on SAS, at midnight on Wednesday 30 May, flying from Copenhagen to London on Friday 1 June, and staying until Monday 4 June with Peter and Julia. Then on Monday we shall fly to Rome, in order that I may give the Avogadro Commemoration Lecture for the Academia dei Lincei. We shall stay in Italy until about 20 June. I don't know what we shall do then-perhaps return to London for a week, go to Copenhagen for a few days, and fly home early in July.

  Are you (Anita) going to stop to visit us on your way to Europe? We shall be away from Pasadena for some time, but shall be at home from 14 to 18 April, and from 9 to 30 May. Then we shall probably be home again after 8 July. I shall be busy during the summer in connection with my research programs, and I also hope to work on a new edition of THE NATURE OF THE CHEMICAL BOND.

  Love from

  Linus Pauling:W

• Letter from LP to O. J. Walker, Chemical Institute of Canada, RE: Regrets that he cannot accept Walker's invitation to speak at the Western Regional Conference at Edmonton. [Letter from Walker to LP March 7, 1956] [Filed under LP Correspondence: (W: Correspondence, 1956), #444.4]
• Letter from LP to Peter Pauling. [Filed under LP Biographical: Box #5.042, Folder #42.3]

  14 March 1956

  Dear Peter:

  Professor Corey and I, while thinking about our work during the coming year, have decided that we need to have advice. Will you write a few pages to me, answering the following questions?

  You know that only a little work has been done on crystalline globular proteins in our laboratory, and that we may well have used rather amateurish methods. During the coming year we hope to carry out a preliminary investigation, involving determination of the size of the unit and of the space group, for a considerable number of protein crystals, and we should like to do this preliminary work in the most expeditious manner. Would you be good enough to tell me how this job is done in Cambridge, and also to add any other information that you think pertinent? How do you grow the crystals? How do you mount them? What procedure do you follow in getting preliminary x-ray information, about size of unit and space group? Do you make use, for this purpose, primarily of precession cameras? If so, what dimensions are they, and what manufacturer? Can you get all of the information that you need from a single crystalline specimen, without changing its mounting? How do you determine the orientation of the crystal? How long does it take you to obtain this preliminary x-ray information, after you have got a good single crystal? So you make use of rotation photographs, or of Weissenberg photographs, also? If so, what sort of cameras do you use - what radius, etc.?

  Mama and I shall leave on 23 March, flying to Portland, then to Vancouver by night, from Vancouver by Canadian National to Winnipeg, where we arrive on Tuesday 27 March. We shall be in Winnipeg, care of the Department of Chemistry, until Saturday 31 March. We then stop for two days in Iowa, and on 4 April arrive in the University of Illinois, address Chemistry Department. We shall be in Illinois, with a short trip home from 14 to 18 April and a visit to Yale and Amherst the week of 23 April, until 5 May, and then return home, stopping for a day in Lawrence, Kansas. We then leave Los Angeles for Copenhagen on the night of Wednesday, 30 May, arriving the afternoon of Friday 1 June in London, by SK 501, at 1:15 P.M. We leave for Rome on Monday 4 June, about noon. We expect then to return to London about 20 June, for another week, to go to Copenhagen for a few days, and on home. The W.H. Freeman Company is celebrating its tenth anniversary on 6 and 7 July, and we are rather committed to be there.

  Much love to you and Julia,

  [Linus Pauling]

• Letter from LP to Richard A. Ogg, Jr., Stanford University, RE: Discusses his opinion on a problem regarding the structure of aluminum borohydride. Says he has not reached a completely satisfactory conclusion. [Letter from Ogg, Jr. to LP March 7, 1956] [Filed under LP Correspondence: (O: Correspondence, 1956), #300.18]
• Letter from LP to Sherman E. Smith, University of New Mexico, RE: Informs that he has invited R. Buckminister Fuller to visit Caltech as suggested in Smith's March 1 letter. [Letter from Smith to LP March 1, 1956] [Filed under LP Correspondence: (S: Correspondence, 1956), #379.4]
• Letter from LP to William Moffitt, Harvard University, RE: Addresses concerns stated by Moffitt about the position of Associate Professor he has been offered at Caltech. Discusses salary, office space and sabbatical years. [Letter from LP to Moffitt March 9, 1956, Letter from DuBridge to Moffitt April 3, 1956] [Filed under LP Correspondence: (M: Correspondence, 1956), #257.1]
• Letter from Professor M. Kirsch, Chemistry Dept., University of British Columbia, to LP RE: LP will address the Chemical Institute of Canada in the Faculty Club Lounge on March 24 at 8:15 PM on "The Structure of Proteins." Will meet LP's train and take him to the Hotel Vancouver. Would like to bring LP to visit campus whenever he is free in the afternoon. Plans to entertain LP and AHP at dinner on Saturday evening. [Letter from LP to Kirsch March 9, 1956] [Filed under LP Speeches: 1956s.8]
• Letter from Professor R.E. Rundle, Chemistry Dept., Iowa State College, to Beatrice Wulf, Secretary to LP, RE: LP is scheduled to speak on April 2 at 8 PM. A dinner party is scheduled prior to the lecture. Has made reservations for LP and AHP at the Memorial Union on campus for April 1 and 2. Rundle will meet their flight in Des Moines and see that they make their train on Tuesday. [Letter from Wulf to Rundle March 12, 1956, Letter from Rundle to LP May 28, 1956] [Filed under LP Speeches: 1956s.12]
• Letter from Professor Ralph L. Shriner, Chemistry Dept., State University of Iowa, to LP RE: Will meet LP and AHP's train at 4:07 PM on April 3 and will take care of them during the afternoon and evening. There will be a small group together for dinner and then the lecture will be held at 7:30 PM in the Chemistry Auditorium. This will allow ample time for LP and AHP to catch their 11:10 PM train to Chicago. Offers to help if their travel arrangements do not work out. [Letter from Wulf to Shriner March 12, 1956, Letter from Shriner to LP May 7, 1956] [Filed under LP Speeches: 1956s.13]
• Letter from R.V. Bartz, Office for Industrial Associates, CIT, to Dr. W.J. Coopoc, Manager of Research, Texas Company, RE: LP is arranging to visit Beacon Laboratories on April 24. Would be happy to give a talk on ferromagnetism and the structure of metals generally. LP might change the date to April 25, but he would inform Bartz accordingly. [Letter from Coopoc to Bartz March 20, 1956] [Filed under LP Speeches: 1956s.18]
• Letter from the Registrar, University of Poona, India, to LP, Irving M. Clotz and G. I. Finch RE: Invites the three men to act as referees in the matter of M. S. Narsinga Rao's thesis on "A Physico-chemical study of Metal-Protein Interactions." [Letter from Wulf to Registrar April 23, 1956] [Filed under LP Correspondence: (P: Correspondence, 1956), #313.4]

• Check from LP to Beatrice Wulf for $200.00. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.3]
• Check from LP to Beatrice Wulf for $50.00. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.3]
• Check from LP to California Institute of Technology Bookstore for $23.76. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.3]
• Check from LP to Dover Publications for $8.48. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.3]
• Check from LP to H.L. Byram, Tax Collector for $572.05. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.3]
• Check from LP to International Society of Hematology for $6.00. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.3]
• Check from LP to Pacific Library Binding Company for $3.87. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.3]
• Check from LP to Southern California Section of ACS for $3.00. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.3]
• Letter from J. C. Warner, President, American Chemical Society, to Dr. Percy L. Julian, President, Julian Laboratories Inc., cc: LP, RE: Writes that his personal convictions are there should be no basis for distinction on a basis of color in a scientific society, but he cannot speak officially for the Society, although he believes others feel the same way. The Board and the Council are responsible to speak for the Society and they will look over this matter carefully. [Letter from Warner to LP March 15, 1956] [Filed under LP Science: American Chemical Society: Correspondence, 1950-1964: Box #14.006, Folder #6.4]
• Letter from J. C. Warner, President, American Chemical Society, to LP RE: Thanks him for his letter and is enclosing his response to Dr. Julian which should clarify his view of the matter. [Letter from LP to Warner February 10, 1956, Letter from Warner to Julian March 15, 1956] [Filed under LP Science: American Chemical Society: Correspondence, 1950-1964: Box #14.006, Folder #6.4]
• Letter from LP to Dr. William V. Consolazio, National Science Foundation, RE: LP encloses the progress report for Research Grant NSF-G1189 for 1955. [Letter from Consolazio to LP March 6, 1956] [Filed under LP Science: National Science Foundation: Grants, Exhibits, 1954-1964: Box #14.030, Folder #30.4]
• Letter from LP to President H.H. Saunderson, University of Manitoba, RE: LP and AHP will look forward to the informal luncheon on March 29 at 12:30 PM. [Letter from Saunderson to LP March 9, 1956] [Filed under LP Speeches: 1956s.9]
• Letter from Marseille Spetz to LP RE: Encloses and briefly discusses his reprint on poliomyelitis. [Letter from LP to Spetz March 20, 1956] [Filed under LP Correspondence: (S: Correspondence, 1956), #379.4]
• Letter from Nathan Kornblum, Purdue University, to LP RE: Sends a reprint of a recent paper in which LP's electronegativity scale proves useful. [Filed under LP Correspondence: (K: Correspondence, 1956), #200.21]
• Letter from S. J. Leach, Commonwealth Scientific and Industrial Research Organization Wool Textile Research Laboratories, to LP RE: Asks if he could visit LP's laboratory while in Los Angeles in April. [Letter from Wulf to Leach March 30, 1956] [Filed under LP Correspondence: (L: Correspondence), #231.2]
• Letter from Thomas A. Gover, Alpha Chi Sigma Fraternity, University of Wisconsin, RE: Asks LP to be the speaker to initiate their yearly lecture series by outstanding scientists. LP would be the guest of honor at the initiation banquet. Asks LP to choose any date in April or early May to come. [Letter from LP to Gover March 12, 1956] [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1953-1975: Box #14.015, Folder #15.4]
• Memorandum from Arletta Townsend to LP RE: Provides the budget information for NSF Grant G1189. [Filed under LP Science: National Science Foundation: Grants, Exhibits, 1954-1964: Box #14.030, Folder #30.4]
• Report on Research Grant RE: Research Grant NSF-G1189, "Configurations of Polypeptide Chains in Proteins," submitted by LP to Dr. William V. Consolazio. [Filed under LP Science: National Science Foundation: Grants, Exhibits, 1954-1964: Box #14.030, Folder #30.4]

• Letter from Dr. Martin A. Watkins, Assistant Professor, Humboldt State College, to LP RE: Thanks LP for appearing as a guest lecturer at American Heritage Week. Everyone agrees that LP's speeches were the best that were ever given at Humboldt. At LP's suggestion, has applied for a position in the English Department at CIT, but has received word that there are no openings. Has no position for next fall, but has resigned from his present position. Has written to his friend Ernest Seeman, suggesting that he get some publicity going on the effects of atomic and hydrogen bomb explosions on longevity. If LP is ever in Tennessee, hopes he will visit Seeman. [Letters from LP to Watkins February 8, 1956, March 16, 1956] [Filed under LP Speeches: 1956s.6]
• Letter from LP to David C. Young, American Chemical Society, RE: Declines Young's invitation to speak before the Midland Section of the American Chemical Society. [Letter from Young to LP March 14, 1956]
• Letter from LP to Dr. J. English, Yale University, RE: Regrets that he will be unable to give a chemistry seminar while visiting New Haven. [Letter from English to LP March 13, 1956] [Filed under LP Correspondence: (E: Correspondence, 1956), #112.22]
• Letter from LP to Dr. Martin A. Watkins, Humboldt State College, RE: LP and AHP remember their visit to Arcata with pleasure. If there is anything LP can do about Watkins' search for a position, he should let LP know. Hallett Smith said there were no openings in the CIT Division of Humanities for the coming year. [Letter from Watkins to LP March 16, 1956] [Filed under LP Speeches: 1956s.6]
• Letter from LP to L. A. Prins, Technical University of Delft, RE: Says he heard of Prins' proposed trip to Pasadena and hopes he will visit. Informs him that his visit falls during Caltech's vacations months so he cannot invite him to give a lecture. [Letter from DuMond to Prins March 9, 1956] [Filed under LP Correspondence: (P: Correspondence, 1956), #313.4]
• Letter from LP to Murray Vernon King, Polytechnic Institute of Brooklyn, RE: Declines King's invitation to be a member of an advisory committee to organize a symposium on protein structure. Mentions his and Prof. Corey's work on the structure of crystalline globular proteins. [Letter from King to LP March 9, 1956] [Filed under LP Correspondence: (K: Correspondence, 1956), #200.21]
• Letter from LP to Robert Livingston Schulyer, Editor, Dictionary of American Biography, RE: Encloses his article on Arthur Amos Noyes for publication in the Dictionary of American Biography. Apologizes for it being late; LP has had so much do lately and it has been difficult to meet all of his commitments. [Letters from Schulyer to LP February 22, 1956, March 20, 1956] [Filed under LP Manuscripts of Articles: 1956a.2]
• Letter from LP to Sterling B. Hendricks, Agricultural Research Service, RE: Says he will not be in Pasadena when Hendricks plans to visit. Invites Hendricks to attend a luncheon with the members of the Division of Chemistry and Chemical Engineering. [Filed under LP Correspondence: (Hendricks, Sterling B.), #156.3]
• Letter from LP to W. F. K. Wynne-Jones, King's College, RE: Discusses details of Wynne-Jones' forthcoming visit to America. [Letter from Wynne-Jones to LP March 10, 1956] [Filed under LP Correspondence: (W: Correspondence, 1956), #444.4]
• Letter from M. F. Crass, Jr., Manufacturing Chemists' Association, Inc., RE: Sends a set of loose-leaf data sheets of Selected Values of Properties of Chemical Compounds for use in the Caltech chemistry library. Describes the sheets and where they will be distributed. [Letter from LP to Crass, Jr. March 16, 1956] [Filed under LP Correspondence: (M: Correspondence, 1956), #257.1]
• Letter from Norman Cousins, The Saturday Review, to LP RE: Discusses a new science-research section in The Saturday Review. [Filed under LP Correspondence: (Cousins, Norman), #68.6]
• Letter from Roy A. Rauschenberg, YM-YWCA Graduate Group, University of Illinois, to LP RE: Has checked with Dr. Wall and there is no conflict, as LP's lecture is scheduled for that afternoon. Will use the title "Science in the Modern World" on their publicity. Thanks LP for accepting their invitation. [Letter from LP to Rauschenberg March 7, 1956] [Filed under LP Speeches: 1956s.14]
• Telegram from Dr. and Mrs. Hogness, Chicago Midway Laboratories, University of Chicago, to LP RE: Has heard that LP and AHP will be in Illinois in April. Would be happy to have LP and AHP spend a few days with them. Could arrange a party for LP and AHP to see their friends in Chicago. [Letter from LP to Dr. and Mrs. Hogness March 19, 1956] [Filed under LP Speeches: 1956s.11]

• Albert, Adrien 1956. Mode of Action of Isoniazid. Nature 177: 525-526.
• Check from AHP to Brown and Welin for $6.33. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.5]
• Check from AHP to Madame H. Bowlis for $6.00. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1]
• Letter from Edward Friel, Security Painting & Decorating Company, to Gentlemen, California Institute of Technology, RE: Informs them of a new development in communication about color that the company found and then wrote about in their paper, "The Trefoil Studies, a Treatment of Color in Terms of the Pigments." Requests that someone with the necessary qualifications evaluate it. [Letter from LP to Friel March 22, 1956] [Filed under LP Correspondence: (F: Correspondence, 1957), #129.1]
• Letter from Hans-Joachim Brüchner to LP RE: Thanks LP for his March 5 letter and explains his own recent accomplishments. [Letter from LP to Brüchner March 5, 1956] [Filed under LP Correspondence: (B: Correspondence, 1956), #38.2]

• Note from Harry Wagreich,The City College, to LP RE: Comments on LP's book, General Chemistry. Inquires about LP's opinions on General Chemistry college courses. [Letter from LP to Wagreich March 22, 1956] [Filed under LP Correspondence: (W: Correspondence, 1956), #444.4]

• Check from AHP to Pearl M. Jordan for $100.00. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1]
• Check from AHP to Peirre Dalinet for $6.25. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1]
• Check from LP to Mr. Paul Hallberg for $213.00. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial: Check Registers, 1951-1960: Box #4.075, Folder #75.3]
• Letter from Barclay Ray, Geological Sciences, CIT, to LP RE: Pleased that LP has agreed to talk to the Geology Club on May 16. Will announce the talk under the title "New Structures for Borate Minerals," but LP is free to discuss other topics in structural chemistry. Invites LP and AHP to dine with people from the department in the Atheneum at 6 PM. Will write again in May. [Filed under LP Speeches: 1956s.23]
• Letter from George Tarjan, Pacific State Hospital, to Dr. Wright, cc: LP and Mrs. Waldron, RE: References articles regarding Hemoglobin from the March issue of the Journal of Laboratory and Clinical Medicine. [Filed under LP Correspondence: (Tarjan, George), #405.2]
• Letter from LP to Crellin Pauling RE: Asks Crellin to meet LP and AHP at the Portland Airport at 12:40 PM on Friday. They will leave by train at 11:45 PM on the same day for Seattle and Vancouver. Asks that Crellin return LP's wristwatch and credit card when they meet in Portland. [Filed under LP Speeches: 1956s.9]
• Letter from LP to Dr. and Mrs. Hogness, Chicago Midway Laboratories, University of Chicago, RE: Though their schedule is rather full, LP and AHP would like to see the Hognesses, perhaps on April 29. They will arrive in Chicago at 12:25 PM. They could stay overnight with the Hognesses and then go on to Urbana the following day. [Telegram from Hogness to LP March 16, 1956] [Filed under LP Speeches: 1956s.11]
• Letter from LP to Mizuho Odagiri, Kinki University, RE: Expresses interest in Odagiri's work on Science Reports of the Society for the Research of Theoretical Chemistry. [Letters from Odagiri to LP February 20, 1956, May 18, 1956] [Filed under LP Correspondence: (O: Correspondence, 1956), #300.18]
• Letter from LP to N. N. Saha, University of Rangoon, RE: Sends an application for an Arthur Amos Noyes Fellowship in Chemistry which LP suggests Saha apply for. [Letters from Saha to LP February 24, 1956, December 10, 1956] [Filed under LP Correspondence: (S: Correspondence, 1956), #379.4]
• Letter from LP to Roy J. Kuffner, Fisk University. [Letter from Kuffner to LP March 9, 1956] [Filed under LP Correspondence: (K: Correspondence, 1956), #200.21]

  19 March 1956

  Dr. Roy J. Kuffner

  Department of Chemistry

  Fisk University

  Nashville 8, Tennessee

  Dear Dr. Kuffner:

  I have been interested to read your letter of 9 March and the accompanying material, dealing with philosophy in relation to science.

  I may say that I myself have had trouble in getting interested in philosophy. From time to time I have made an effort to do so, but never with success. During recent years I have talked with Dr. Max Mason about this matter, and have found that his thoughts on the subject are similar to mine. Perhaps he goes somewhat beyond me - he says that so far as he can discover philosophy is verbalism - that it deals with words exclusively, and has no deeper meaning. It is my opinion that there is something to what he says; and I am skeptical about the value of philosophy for young people. Of course, some of the questions that you mention are really a part of science, a clarification of the words used by scientists and of the questions that they discuss.

  Sincerely yours,

  Linus Pauling:W

• Letter from Lindsay Helmolz, Washington University, to LP RE: Asks if LP could stop in St. Louis to visit on his way to Illinois. [Letter from LP to Helmholz March 22, 1956] [Filed under LP Correspondence: (Helmholz, Lindsay), #156.2]
• Letter from Ray T. Bayless, Assistant Secretary, American Society for Metals, to LP RE: Encloses dummy pages for LP's article "The Electronic Structure of Metals and Alloys" from the ASM Seminar on Theory of Alloy Phases. Requests that LP look over the pages and make necessary corrections. [Letter from Bayless to LP May 8, 1956] [Filed under LP Manuscripts of Articles: 1956a.3]
• Letter from Robert D. Vold, Indian Institute of Science, to LP RE: Requests that LP nominate qualified Indian students for a faculty position, Senior Research Assistant, at the Indian Institute of Science. [Letter from LP to Vold April 17, 1956] [Filed under LP Correspondence: (V: Correspondence, 1956), #427.16]
• Receipt from the International Society of Hematology to LP RE: Acknowledges receipt of $6.00 in payment of dues for the years 1955 and 1956 from LP. [Filed under LP Correspondence: (I: Correspondence, 1956), #185.17]

• Letter from Constance Lovell, Psychology Dept., University of Southern California, to LP RE: University of Southern California's chapter of Phi Beta Kappa invites LP to speak at their annual banquet on May 1 on a topic of his choice. The address should last an hour and an honorarium of $50 will be provided. [Letter from LP to Lovell March 22, 1956] [Filed under LP Speeches: 1956s.24]
• Letter from Dr. W.J. Coopoc, Manager of Research, Texas Company, to R.V. Bartz, Office of Industrial Associates, Caltech, RE: Pleased to hear that LP will be able to visit and speak at Beacon Laboratories on April 24. April 25 would also be satisfactory. Offers to make reservations for LP's lodging if necessary. [Letter from Bartz to Coopoc March 14, 1956] [Filed under LP Speeches: 1956s.18]
• Letter from G. Scheibe, Physikalisch-Chemischen Institut, to LP RE: Written in German. Thanks LP for his letter expressing his high opinion of Hans-Joachim Bruchner. [Letter from LP to Scheibe February 5, 1956] [Filed under LP Correspondence: (S: Correspondence, 1956), #379.4]
• Letter from LP to Dr. Domenica Marotta, Istituto Superiore di Sanita, Italy, RE: Accepts invitation to deliver an Avogadro Commemoration Lecture on June 6. Encloses a photo. Will send the manuscript as soon as he has prepared it. Describes LP and AHP's travel plans. Will stay in Italy for three weeks, leaving on June 23. Accepts invitation to tour Italian universities. Dr. Chain suggested that he visit Naples, Bologna, Milan, and Turin. Gives suggestions for lecture topics. [Letters from Marotta to LP March 14, 1956, March 27, 1956] [Filed under LP Speeches: 1956s.25]
• Letter from LP to Dr. E.B. Chain, F.R.S., Istituto Superiore di Sanita, Italy, RE: LP and AHP are looking forward to their visit to Italy. Gave the titles of four talks he might deliver. Likely that his lecture tour in Italy might involve only one or two of these talks. Suggests the talk on the structure of proteins and the talk on abnormal hemoglobin molecules in relation to disease. Would like to know which talks are to be given so that he does not have to bring slides over for the others. [Telegram from LP to Chain March 2, 1956, Letter from Chain to LP March 27, 1956] [Filed under LP Speeches: 1956s.25]
• Letter from LP to Henry Allen Moe, John Simon Guggenheim Memorial Foundation, RE: Apologizes for interfering with Harold S. Johnston's Guggenheim Fellowship but explains that they needed another man to help next year since the Chemistry program has been restructured. [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1953-1975: Box #14.015, Folder #15.4]
• Letter from LP to Marseille Spetz RE: Thanks Spetz for reprints he sent discussing epidemicity of poliomyelitis. [Letter from Spetz to LP March 15, 1956] [Filed under LP Correspondence: (S: Correspondence, 1956), #379.4]
• Letter from Peter Pauling to Linus Pauling. [Filed under LP Biographical: Personal & Family, Family Correspondence: Peter Pauling Box #5.042 Folder #42.3]

  20 March, 1956

  This is letter 1 of a series.

  One can obtain the unit cell in one precession photograph and one still taken along the same zone which gives the length of the third axis.

• Letter from Robert Corey to Prof. Hermann O. L. Fischer, University of California, Berkeley, cc: LP, RE: Discusses the continuation of X-ray studies of peptides. States that he would like to keep 6 promising peptide samples and return the remaining 14 to Hermann. [Filed under LP Correspondence: (F: Correspondence, 1956), #128.21]
• Letter from Robert F. Gould, Managing Editor, Chemical and Engineering News, to LP RE: Thanks LP for consenting to review the book Fibrous Proteins and Their Biological Significance. Sending the book to LP under separate cover. Gives specifications for the style of the review. [Letter from Wulf to Gould March 14, 1956, Letter from LP to Gould May 16, 1956] [Filed under LP Manuscripts of Articles: 1956a.6]
• Letter from Robert Livingston Schulyer, Editor, Dictionary of American Biography, to LP RE: Received the LP's article. [Letter from LP to Schulyer March 16, 1956] [Filed under LP Manuscripts of Articles: 1956a.2]
• Return Item Debit from First Western Bank and Trust Company for LP for $135.00. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1]
• Telegram from M.W. Cronyn, Reed College, to LP RE: Should let LP know if he will use slides for Friday's talk on proteins. [Telegram from Cronyn to LP March 20, 1956] [Filed under LP Speeches: 1956s.10]

• Check from AHP to Farmers Grocery for $25.00. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1]
• Check from AHP to Haggarty's for $22.05. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1]
• Letter from Clarence E. Pickett to LP RE: Requests that LP explain why he is willing to sign a letter to the President regarding the trial of Morton Sobell. Expresses doubt about whether he should sign the letter himself. [Letter from LP to Pickett June 6, 1956] [Filed under LP Correspondence: (P: Correspondence, 1956), #313.4]
• Letter from Clyde Manwell to LP RE: Describes his current work with hemoglobin as a graduate student. Requests copies of five of LP's articles. [Filed under LP Correspondence: (M: Correspondence, 1956), #257.1]
• Letter from LP to Gover, Alpha Chi Sigma Fraternity, University of Wisconsin, RE: LP is sorry but he cannot rearrange his schedule to accept the invitation. [Letter from Gover to LP March 15, 1956] [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1953-1975: Box #14.015, Folder #15.4]
• Letter from Ralph A. Beebe, Chemistry Dept., Amherst College, to LP RE: Thanks LP for letting them know about the plans for his Amherst trip. The chemistry seminar talk on the structure of proteins would be appropriate. Has reserved accommodations for LP and AHP at the Lord Jeffrey Inn. [Letter from LP to Beebe March 13, 1956] [Filed under LP Speeches: 1956s.19]
• Letter from Robert W. McKinney, Corresponding Secretary, Phi Lambda Upsilon, Chemistry Dept., University of Kansas, to Beatrice Wulf, Secretary to LP, RE: Will be happy to met LP and AHP at Kansas City on May 5 and drive them back the following Tuesday. Has made reservations for LP and AHP for the guest house on campus. [Letter from Wulf to McKinney March 12, 1956, Letter from McKinney to LP May 15, 1956] [Filed under LP Speeches: 1956s.22]
• Telegram from LP to Cronyn, Reed College, RE: Will use standard size slides. [Telegram from Cronyn to LP March 20, 1956] [Filed under LP Speeches: 1956s.10]
• Telegram from LP to Thomas A. Gover, Alpha Chi Sigma Fraternity, University of Wisconsin, RE: LP regrets his inability to rearrange his schedule in order to accept his invitation. [Letter from Gover to LP March 15, 1956] [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1953-1975: Box #14.015, Folder #15.4]

• Check from AHP to Beatrice Wright for $8.50. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1]
• Check from AHP to Gene Browne for $25.33. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1]
• Check from AHP to Jerry Emery for $50.00. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1]
• Check from AHP to Richard Perry for $127.50. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1]
• Check from LP to Bennett Travel Agency for $1,286.95. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1] [Also filed under LP Biographical: Business and Financial Check Registers, 1951-1960: Box #4.075, Folder #75.3]
• Invitation: Women's International League for Peace and Freedom, First Night-Meeting of 1956, Los Angeles, March 22, 1956. [Filed under LP Biographical: LP Scrapbooks, 1956-1960: Box #6.007, Folder #7.7]
• Itinerary: Women's International League for Peace and Freedom, Los Angeles [Filed under LP Travel: Box #1.002, Folder #2.1]
• Letter from Dr. Allen J. Enelow to LP RE: George Tarjan has informed Enelow that LP has agreed to speak at the 1956 Annual Meeting of the Southern California Psychiatric Society on October 20 at the Ambassador Hotel in Los Angeles. Invites LP and AHP to a dinner dance that evening. Offers to reserve a room for them at the Ambassador for October 20. Not certain who would be qualified to be a discussant for LP's paper; wonders if LP has any suggestions. [Letter from LP to Enelow April 20, 1956] [Filed under LP Speeches: 1956s.31]
• Letter from LP to Constance Lovell, Psychology Dept., University of Southern California, RE: Accepts invitation to address the University of Southern California chapter of Phi Beta Kappa at their annual banquet on May 18. Suggests the title of his talk be "Science in the Modern World." [Letters from Lovell to LP March 20, 1956, April 17, 1956] [Filed under LP Speeches: 1956s.24]
• Letter from LP to Dr. S. Basu, University College of Science, Calcutta, RE: Says he has sent Basu's March 12 letter to Prof. Wheland. [Filed under LP Correspondence: (B: Correspondence, 1956), #38.2]
• Letter from LP to Edward Friel, Security Painting & Decorating Company, RE: Informs him that no one at Cal Tech has the area of expertise to make an evaluation of the Company's paper. [Letters from Friel to LP March 17, 1956, April 30, 1957] [Filed under LP Correspondence: (F: Correspondence, 1957), #129.1]
• Letter from LP to G. W. Wheland, University of Chicago, RE: Requests that Wheland answer a letter sent to him from Sadhan Basu. [Letter from LP to Wheland February 8, 1956, Letter from Wheland to Basu] [Filed under LP Correspondence: (Wheland, G. W.), #437.7]
• Letter from LP to Harry Wagreich, City College, RE: Responds to Wagreich's inquiries regarding college courses in General Chemistry. [Letter from Wagreich to LP March 18, 1956] [Filed under LP Correspondence: (W: Correspondence, 1956), #444.4]
• Letter from LP to John E. Pomfret, Huntington Library, RE: Informs Pomfret of an incident in which a parking attendant at the Library spoke to AHP rudely. Explains the circumstances and his reason for mentioning the matter. [Filed under LP Correspondence: (P: Correspondence, 1956), #313.4]
• Letter from LP to Lindsay Helmholz, Washington University, RE: Regrets that his schedule will not allow for a visit to St. Louis. [Letter from Helmholz to LP February 19, 1956] [Filed under LP Correspondence: (Helmholz, Lindsay), #156.2]
• Letter from LP to Peter Pauling. [Filed under LP Biographical: Box #5.042, Folder #42.3]

  22 March 1956

  Dear Peter:

  Could you get time to make a purchase for me? I should like to give a little present to Mama, and I am writing to ask if you would buy it for me, and give it to me when we come to London.

  There is described in Nature of 3 March 1956, near the middle, a set of four magnifiers, 6X, 8X, 10X, and 15X, in a silk-lined case, to be sold for 77 shillings 9 pence. The company is Newbold and Bulford, Ltd., Enbeeco House, Rogers Street, Grays Inn Road, W. C. 1.

  The Theorells hare been visiting us, for four days. They leave tonight for home, by SAS. Yesterday Mama and I took them, in the Riley, to Palomar, and home by way of Oceanside and Laguna. We had a dinner for them on Monday, with Max Mason and Mrs. Mason, Ruth Tolman, and some other people as guests. Tonight we shall have a reception before taking them to the plane.

  Love to Julia,

  [Linus Pauling]

• Letter from LP to Vasudev A. Vyas, Dharmendrasinhji College, RE: Addresses problems with Vyas' wish to study under his guidance. Suggests he apply to University of London. [Letter from Vayas to LP March 13, 1956] [Filed under LP Correspondence: (V: Correspondence, 1956), #427.16]
• Letter from R. Daudel, Center of Theoretical Chemistry, France, to LP RE: Written in French. Explains that his plans to travel to America have changed because of the death of Madame Joliot-Curie. [Letters from LP to Daudel February 10, 1956, April 17, 1956] [Filed under LP Correspondence: (Daudel, Raymond and Pascaline), #89.6]
• Letter from Sidney W. Fox, Florida State University, to LP RE: Discusses Dr. Gordon Tollin's work and the possibility of his studying spectrochemisty at Caltech. [Letter from LP to Fox April 18, 1956] [Filed under LP Correspondence: (T:Correspondence, 1956), #411.1]
• Letter from William V. Consolazio, Program Director for Molecular Biology, National Science Foundation, to LP RE: Thanks LP for his research progress report under Grant No. G-1189. [Filed under LP Science: National Science Foundation: Correspondence, 1947, 1951-1989: Box #14.029, Folder #29.3]

• Check from AHP to Pearl M. Jordan for $25.00. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1]
• Itinerary: LP to leave [Filed under LP Travel: Box #1.002, Folder #2.1]
• Itinerary: leave Los Angeles, arrive in Portland, Oregon at 12:40 PM; Reed College, afternoon talk on proteins; leave Portland for Seattle at 11:45 PM [Filed under LP Travel: Box #1.002, Folder #2.2]
• Letter from Professor Fred T. Wall, William Albert Noyes Laboratory, Chemistry and Chemical Engineering Dept., University of Illinois, to LP RE: Encloses two copies of a notice being circulated regarding LP's upcoming lectures. Planning an informal reception for LP and AHP to be held on April 4 at the home of Professor and Mrs. H.E. Carter. Offers to meet LP and AHP at the airport or station when they arrive. [Letter from LP to Wall March 7, 1956, Letter from Wulf to Wall March 27, 1956] [Filed under LP Speeches: 1956s.11]

• Article: Where is Science Taking Us? The Research Frontier," Numerous Authors including Linus Pauling, Saturday Review, March 24, 1956. [Filed under LP Biographical: LP Scrapbooks, 1956-1960: Box #6.007, Folder #7.18]
• Hotel receipt: Hotel Vancouver, Vancouver BC [Filed under LP Travel: Box #1.002, Folder #2.2]
• Itinerary: arrive in Seattle at 5:45 AM; leave Seattle at 8:05 AM, arrive in Vancouver at 12:15 PM; Hotel Vancouver; visit campus of University of British Columbia [Filed under LP Travel: Box #1.002, Folder #2.2]
• Note from George Friedman to LP RE: Expresses his admiration for LP and asks for an autographed photograph. [Filed under LP Correspondence: (F: Correspondence, 1956), #128.21]

• Itinerary: leave Vancouver at 8 PM [Filed under LP Travel: Box #1.002, Folder #2.2]

• Itinerary: arrive in Winnipeg at 6:45 PM; reservation at Fort Garry Hotel [Filed under LP Travel: Box #1.002, Folder #2.2]
• Letter from Fred B. Eiseman, Jr., John Burroughs School, to LP RE: Asks for assistance in questions on structural chemistry, wave-particle duality of electromagnetic radiation and other scientific matters. Discusses his and a student's recent work with a microwave transmitter and the optical activity of certain asymmetric organic molecules. [Letter from LP to Eisman, Jr. April 17, 1956] [Filed under LP Correspondence: (E: Correspondence, 1956), #112.22]
• Letter from George Wald, Harvard University, to LP RE: Discusses the investigation of isomers of vitamin A. [Letter from LP to Wald March 6, 1956] [Filed under LP Correspondence: (Wald, George), #431.1]
• Letter from LP [Signed by Beatrice Wulf] to Mary E. Tincovich, Librarian, Western Psychiatric Institute and Clinic, RE: Sends a bibliography of his publications. Doubts that they will be interested in many of these papers, so will only send reprints of one or two on sickle cell anemia. [Letter from Tincovich to LP February 28, 1956] [Filed under LP Speeches: 1956s.20]
• Newspaper Clipping: "Protein Structure Study is Vital Problem: Pauling," Reed College (Portland, Oregon) Quest, March 26, 1956. [Filed under LP Biographical: LP Scrapbooks, 1956-1960: Box #6.007, Folder #7.7]

• Ch 1c Freshman Chemistry Lecture Topic: Analytical Chemistry (E. Swift), Homework: Study of the analysis scheme, Laboratory: Preparation for Laboratory work. [Filed under LP Biographical: Academia: Box #1.014, Folder #14.10]
• Itinerary: arrive in Winnipeg at 6:45 PM; reservation at Fort Garry Hotel [Filed under LP Travel: Box #1.002, Folder #2.2]
• Letter from Beatrice Wulf, Secretary to LP, to Professor Fred T. Wall, William Albert Noyes Laboratory, University of Illinois, RE: Wall's letter to LP with the notices of his lectures arrived after LP and AHP left. Will not forward them because not sure that she can reach him; LP will be making stops in Canada and Iowa before arriving in Urbana. LP and AHP will arrive in Urbana at 9:50 AM on the Illinois Central. Provides info on how LP can be reached until then. [Letters from Wall to LP March 23, 1956, May 9, 1956] [Filed under LP Speeches: 1956s.11]
• Letter from Dr. Domenico Marotta, Istituto Superiore di Sanita, Italy, to LP RE: Pleased that LP will be able to come to Rome to deliver the Avogadro Lecture on June 6. Would like to know the exact date and time of LP's arrival. LP will be staying at the Hassler Hotel. Understands that Professor Chain has written to LP regarding the subjects for the Italian lecture tour. [Letter from LP to Marotta March 20, 1956, April 16, 1956] [Filed under LP Speeches: 1956s.25]
• Letter from Dr. E.B. Chain, F.R.S., Istituto Superiore di Sanita, Italy, to LP RE: Delighted that LP has accepted the invitation to deliver an Avogadro Commemoration Lecture on June 6. Requests that LP let them know the exact date of his arrival. Selects the titles "The Structure of Proteins" and "Abnormal Hemoglobin Molecules in Relation to Disease" from the list LP gave. If it would not be too much trouble, suggests that he also bring the slides for "The Valence of Metals and the Structure of Intermetallic Compounds" lecture. People at the University of Bologna might be particularly interested in that topic. Florence will be included in LP's tour, but it is not necessary for LP to lecture there. [Letters from LP to Chain March 20, 1956, April 17, 1956] [Filed under LP Speeches: 1956s.25]
• Letter from G. W. Wheland, University of Chicago, to LP RE: Encloses a copy of his letter to Sadhan Basu. Explains his reason for ending his and LP's correspondence. [Letter from Wheland to Basu March 27, 1956] [Filed under LP Correspondence: (Wheland, G. W.), #437.7]
• Letter from G. W. Wheland, University of Chicago, to Sadhan Basu, University College of Science, Calcutta, RE: Responds to Basu's inquiry by explaining the procedure for calculating charges on atoms in the pyridine molecule. [Letters from LP to Wheland March 22, 1956, March 27, 1956] [Filed under LP Correspondence: (Wheland, G. W.), #437.7]
• Letter from G.B.B.M. Sutherland, University of Michigan, to LP RE: Extends an open invitation to LP and AHP to visit his residence in London. Invites LP to attend a Biophysics Symposium in Ann Arbor in July. [Letters from LP to Sutherland March 13, 1956, April 17, 1956] [Filed under LP Correspondence: (Sutherland, G.B.B.M, 1939, 1956), #341.2]
• Letter from J. J. Drysdale, Du Pont Company, to LP RE: Invites LP to speak at a seminar before the Experimental Station of the Du Pont Company. Discusses details of the seminar. [Letter from LP to Drysdale April 16, 1956] [Filed under LP Correspondence: (D: Correspondence, 1956), #98.21]
• Letter from Professor I. Fankuchen, Polytechnic Institute of Brooklyn, to LP RE: Sends him a revised copy of Geller's manuscript and requests his thoughts. Includes a copy of LP's comments on the original manuscript, the letter from Geller responding to LP's comments, and a copy of his manuscript. [Filed under LP Manuscripts of Articles: 1957a.4]
• Return Item Debit from First Western Bank and Trust Company for LP for $135.00. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1]

• Itinerary: Medical College, University of Manitoba; 12 noon speak to medical students; dinner with Professor and Mrs. Frank White [Filed under LP Travel: Box #1.002, Folder #2.2]
• Itinerary: University of Manitoba, Merck Lecture, Winnipeg [Filed under LP Travel: Box #1.002, Folder #2.1]

• Ch 1c Freshman Chemistry Lecture Topic: Analytical Chemistry (E. Swift), Homework: Study of the analysis scheme, Laboratory: Preparation for Laboratory work. [Filed under LP Biographical: Academia: Box #1.014, Folder #14.10]
• Itinerary: University of Manitoba, Merck Lecture, Winnipeg [Filed under LP Travel: Box #1.002, Folder #2.1]
• Itinerary: visit university campus; lunch at 12:30 with President Hugh Saunderson; 1:30 PM talk to Chemistry Club; 8:30 PM Merck Lecture "Abnormal Hemoglobin Molecules in Relation to Disease" [Filed under LP Travel: Box #1.002, Folder #2.2]
• Letter from Beatrice Wulf, Secretary to LP, to William Mace, Shortridge High Science Club, RE: Sends biographical material on LP and information regarding LP's work and publications. [Letter from Mace to LP March 1956] [Filed under LP Correspondence: (M: Correspondence, 1956), #257.1]
• Letter from Chauncey D. Leake, Ohio State University to Editors, The Saturday Review, cc: LP, RE: Discusses a spread in the March 24th issue of The Saturday Review concerning ten scientists' views on "Research Frontier." [Filed under LP Correspondence: (Leake, Chauncey D.), #214.4]
• Letter from Secretary to LP to Robert Gordon RE: Answers the letter for LP since he is away on a long trip. Cannot give Gordon much information because LP does not work along those lines but sends Gordon some reprints about chemistry in the modern world that he might be able to use. [Note from Gordon to LP February 28, 1956] [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1953-1975: Box #14.015, Folder #15.4]
• Letter from William T. Scott, Smith College, to LP RE: Welcomes LP as a member of the Society for Social Responsibility in Science. Discusses the work of Mrs. Wrinch and Miss Anslow. [Letters from LP to Scott February 14, 1956, April 20, 1956] [Filed under LP Correspondence: (S: Correspondence, 1956), #379.4]

• Itinerary: University of Manitoba, Merck Lecture, Winnipeg [Filed under LP Travel: Box #1.002, Folder #2.1]
• Itinerary: visit with Dr. and Mrs. Ralph Spitzer, Fort Garry [Filed under LP Travel: Box #1.002, Folder #2.2]
• Letter from Beatrice Wulf, Secretary to LP, to S. J. Leach, Wool Textile Research Laboratories, RE: Says LP will be out of town on the date Leach specified for his intended visit but that Prof. Corey will see Leach when he visits. [Letter from Leach to LP March 15, 1956] [Filed under LP Correspondence: (L: Correspondence), #231.2]
• Letter from George Mantell, University of California, Livermore Radiation Laboratory, to LP RE: States that Eric H. Carson provided LP as a reference in his application to work at the radiation laboratory. Requests LP's opinion and comments on Carson. [Letter from LP to Mantell April 16, 1956] [Filed under LP Correspondence: (M: Correspondence, 1956), #257.1]
• Letter from Gunnar Bergman to Office of Naval Research RE: Submits a Periodic Status Report for December 1955 through February 1955 for Contract No. N6onr-24432. [Filed under LP Science: Office of Naval Research: Correspondence, Contract Status Reports and Project Status Reports, 1947-1962: Box #14.031, Folder #31.19]
• Letter from J. Lewin, Centre National de Transfusion Sanguine, RE: Says he would like to accept LP's invitation to come to work with him in Pasadena for a year but must first obtain permission from his current place of work. [Letters from LP to Lewin March 8, 1956, April 16, 1956] [Filed under LP Correspondence: (L: Correspondence), #231.2]
• Letter from Unknown Sender to Mr. Freeman RE: Says Freeman's letter has been sent to LP. Explains when LP will be in Pasadena. [Letters from LP to Freeman February 1, 1956, May 11, 1956] [Filed under LP Correspondence: (W.H. Freeman and Company, 1956), #439.14]

• Check from AHP to Anita Pauling for $15.00. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1]
• Check from AHP to Elizabeth Gillette for $10.00. [Filed under LP Biographical: Business and Financial: Bank Statements and Canceled Checks, February 1956-December 1957: Box #4.024, Folder #24.1]
• Contract Status Report: Contract N6onr-24423, Chemistry 25, Acct. 23607, Directors of Research: LP and Dr. Verner Schomaker, March 31, 1956. [Filed under LP Science: Office of Naval Research: Correspondence, Contract Status Reports and Project Status Reports, 1947-1962: Box #14.031, Folder #31.8]
• Itinerary: luncheon meeting, Manitoba Section of the Chemical Institute of Canada [Filed under LP Travel: Box #1.002, Folder #2.2]