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• Note from LP to Meyer Weisgal, RE: LP gladly accepts the invitation to deliver a lecture at the Weizmann Institute in Tel Aviv. [Weisgal’s telegram September 18, 1953] [Filed under LP Speeches: (Speeches by Linus Pauling, 1953), Box 1953s, Folder 1953s.15]
• Photo: A group picnic at the Pasadena Conference on the Structure of Proteins. Linus Pauling standing behind a table. Pasadena, California. "September. 1953 Protein Conference" "Event by Dr. Arthur Elliot, Moray Wharf Lane, Bourne End, Bucks." Photographer unknown. [Filed under LP Photographs: 1953i.21]
• Reprint of article "Ozone Formation in Photochemical Oxidation of Organic Substances" from Industrial and Engineering Chemistry. [4 pages] [Filed under LP Science: Box 10.007, Folder 7.2]

• AHP writes cheque to: A.C. Vroman amount: $20.70 [Filed under LP Biographical: Box #4.022, Folder #1]
• AHP writes cheque to: Rhapsody Record Shop amount: $12.32 [Filed under LP Biographical: Box #4.022, Folder #1]
• LP Biographical: Political. Publication: UE Steward RE: "What is McCarthyism?". [Filed under LP Biographical Box 2.040, Folder 40.12]
• Letter from Beatrice Wulf to Mr. P. M. O'Bryan RE: writes in response to Mr. O'Bryan's enquiry the name of the Instrument Company that manufactures the Oxygen Meter that he mentioned in his letter. [Letter from Mr. O'Bryan to LP August 17, 1953] [Filed under O: Correspondence 1953, Box #300, Folder #15]

• AHP writes cheque to: Colby Nurseries amount: $28.22 [Filed under LP Biographical: Box #4.022, Folder #1]
• Letter from L. W. Butz, of the Office of Naval Research [ONR] to LP and Dr. Verner Schomaker RE: Requests changes be made to the distribution list for technical reports based on a project that the Institute and the ONR are working on together. [Filed under LP Science: Box 14.032, Folder 32.2]
• Letter from LP to Dr. Edmund Field RE: Is sorry to write that he is unable to accept the offer to speak at the Chicago Section of the ACS during the proposed dates, as he has scheduled a trip to India during that time. [Letter from Dr. Field to LP August 26, 1953] [Filed under F: Correspondence 1953, Box #128, Folder #18]
• Letter from LP to Lewis Pino, RE: LP believes that he will still be able to arrange to come to Allegheny College despite the fact that the College will not be able to pay for his travel expenses. [Pino’s letter August 20, 1953>] [Pino’s reply September 10, 1953] [Filed under LP Speeches: (Speeches by Linus Pauling, 1953), Box 1953s, Folder 1953s.16]
• Notice of Research Project, Medical Sciences Information Exchange RE: Investigating plant and animal viruses by means of X-ray diffraction techniques with the object of obtaining direct physical evidence of their composition, structure, and molecular configuration. [Filed under LP Science: Box 14.028, Folder 28.1]

• AHP writes cheque to: JJ Blum amount: $42.96 [Filed under LP Biographical: Box #4.022, Folder #1]
• LP writes cheque to Peter J. Pauling: amount: $110.00 [Filed under LP Biographical: Box #4.022, Folder #1]
• Letter from LP to Dr. I. Fankuchen RE: asks Dr. Fankuchen to send the parameter values that he found for tin tetraiodide among other information relating to an abstract that he wrote regarding the Dickenson structure that he critiqued in his previous abstract. [previous related letter from Dr. Fankuchen to LP June 29, 1953, following related letter from Fred Meller to LP October 21, 1953] [Filed under LP Correspondence: Box #117, Folder #4].
• Letter from LP to Dr. John Michael O'Gorman RE: writes from Germany to Dr. O'Gorman that he is pleased to learn that he is at Pratt Institute now. Comments on his trip in Europe. [Note from Dr. O'Gorman to LP July 9, 1953] [Filed under O: Correspondence 1953, Box #300, Folder #15]
• Letter from LP to R.C. Gibbs, National Research Council, RE: Gives a positive recommendation for Dr. Wilfried Heller. [In reply to letter from Gibbs to LP August 31, 1953]. [Filed under LP Science: 14.028, Folder 28.1].
• Letter from Peter Pauling to Ava Helen Pauling. [Filed under LP Biographical: Box 5.041, Folder 41.7]

  3 Sept 53

  Dear Mamma,

  My package of clothes came. I will go have the suit altered tomorrow. Maybe relined.

  Bragg left. Jim Watson came for two days and left. Sad parting. I like him muchly.

  Still no room. Must hunt.

  I was very happy to see you. I am glad I spent the summer with you. You are rather too nice to me.

  Much love,

  (XXXXOOOO)^10! Peter

• Memo from Francis H. to Beatrice Wulf RE: Says that Dean Watson [Dean of the Graduate School?] wonders if LP would be interested in Yasumasa Hayakawa. [related letter from Yasumasa Hayakawa to Dean of Graduate School, Caltech, July 8, 1953] [Filed under H: Correspondence 1953, Box #166, Folder #4]

• AHP writes cheque to: Roger Okersrom amount: $111.00 [Filed under LP Biographical: Box #4.022, Folder #1]
• AHP writes cheque to: Susie Perry [Boormans Market] amount: $14.00 [Filed under LP Biographical: Box #4.022, Folder #1]
• Letter from LP to Mrs. Asima Chatterjee of the University College of Science and Technology, Calcutta, India RE: thanks Mrs. Chatterjee for her letter requesting that the Caltech lab perform x-ray analyses on a couple of alkaloids. Informs her that he has decided that his department should not preform the analyses. [Filed under LP Correspondence: Box #64, Folder #6].
• Letter from LP to Mrs. C. A. VanderWerf RE: was pleased to read her manuscript and now returns it. [Letter from Mrs. VanderWerf to LP August 21, 1953] [Filed under LP Correspondence: Box #427, Folder #13].
• Letter from LP to Peter Pauling [Filed under LP Biographical: Box #5.041, Folder #41.7]

  4 September 1953

  Dear Peter:

  Mama and I reached home safely. We took time in New York to go to the Unitarian Service Committee, and to render an oral report. I still have, however, to prepare a written report on the trip. This will be a chore - but, like many other things that I do, it is something that has to be done, whether I like it or not.

  Crellin and Jim Rosoff met us at the plane, when we got in just at midnight, Jim's father was there too - he thought that the boys should not be out so late at night, and he drove us home, with them. Everything is in pretty good shape here, except that along the western side of our property there is a great pile of dirt and rocks, plus a tree stump, etc. The city is putting in sewers, and a sewer line lies in an easement just west of our property line. The sewer contractor dug the trench in such a way as to pile all of the dirt on our place. Also, someone ran into our garage door, and split it from top to bottom. Also, Sierra Madre Villa and Fairpoint Street are both dug up for water pipes and sewers to be put in, and we have to drive between orange trees on Woodruff's place to get in. As a result, I think that Mama will postpone the chemistry tea - there is no place for people to park their cars.

  I have found a lot of work to do, on reaching home. You might be interested in a problem that I have had to solve. One of the graduate students had not done his research very well during the past year. At the beginning of the summer I told him that we would give him a stipend during the summer, provided that he made some preparations that we needed, and which were, in fact, closely related to his research, and also provided that he made up a course in which he had done unsatisfactory work. Yesterday I found that he had not made up the course deficiency, and had not made the preparations - apparently because he didn't feel in the mood to do these jobs, and had become interested in something else. He was conscientious enough, however, not to have drawn his salary during the summer too. As a result, I reported to the Dean that he had not made up the deficiencies, and that he should not be admitted as a graduate student during the coming year; accordingly he is leaving.

  I enclose your check for 1 September. It is for a smaller amount than usual, because I have subtracted a 5-pound fine plus costs.

  Love from

  Linus Pauling: W

  Encl.

• Material from National Committee to Repeal the McCarran Act [LP on letterhead as "Initiator"]. Letter informs members of a major bill to revise the McCarran-Walter Immigration Act. Encloses a synopsis of the bill. Urges members to visit and write letters to Senators and Congressman.

• Research Note Books of LP, RNB 14 RE: Notes on Collagen, specifically (10, 10, a) structure and an analysis of the 9.5 Å reflection. Also discusses some complex structures. [p. 22-23] [previous info. June 25, 1953, further info. September 12, 1953].

• Letter from Dr. J. Jennen of Gevaert Photo-Producten to LP RE: writes in follow-up to a discussion they had after Liquori's lecture in Stockholm on the configuration of the amide bond. Asks for some reprints from LP. Discusses his own lecture on amides. [Note in blue at bottom: "either because of its absence or of contributions from a compensating polar structure, the usual polar res. form written for the amides makes a very small or negligible contrib'n to the str of the amide group."] [Letter of response from LP to Dr. J. Jennen September 23, 1953] [Filed under J: Correspondence 1953, Box #192, Folder #19]

• AHP writes cheque to: Susie Perry [Boormans Market] amount: $40.00 [Filed under LP Biographical: Box #4.022, Folder #1]
• Letter from Enid Tennyson, Unitarian Service Committee, to LP RE: Confirming that LP had no claims to make under the insurance plan for his trip to Germany. [Reply from LP to Tennyson, September 12, 1953]. [Filed under LP Peace: Box 4.001, Folder 1.3]
• Letter from LP to Dr. Yasumasa Hayakawa RE: Writes that Miss Auge, Secretary of the Graduate Office, has turned over his letter to him. Goes on to answer some of Dr. Hayakawa's questions about admissions to Caltech and fellowships. Encloses an application. [related letter from Dr. Hayakawa to the Graduate Office July 8, 1953, letter of response from Mr. Hayakawa to LP October 8, 1953] [Filed under H: Correspondence 1953, Box #166, Folder #4]
• Letter from LP to Sister Mary Martinette. [Letter from Sister Mary Martinette to LP August 31, 1953] [Filed under M: Correspondence 1953, Box #256, Folder #4]

  8 September 1953

  Sister Mary Martinette, B.V.M.

  Mundelein College

  Chicago 40,

  Illinois

  Dear Sister Martinette:

  I am pleased to have your letter, and to knew that you enjoyed your visit here.

  My wife and I had a good time in Germany, Sweden, and Denmark, although we (at any rate I) become somewhat homesick. We bought an automobile, and drove 4000 miles. It was very interesting to see so much of the country and of small towns, instead of just being in the big cities.

  I hope that you will come to see us again sometime.

  Sincerely yours,

  Linus Pauling:w

• LP Biographical: Business and Financial, Insurance Documents. Statement from Robert Dawson Agency with billing information for automobile insurance. [Filed under LP Biographical, Box 4.040, Folder 40.2]
• Note from Makisaburo Ogasawara to LP RE: is sending LP a copy of his book Exercises in Quantum Mechanics which is recently being published. Requests that LP review it. [Letter of response from LP to Mr. Ogasawara September 24, 1953] [Filed under O: Correspondence 1953, Box #300, Folder #15]

• AHP writes cheque to: Manor Market amount: $50.00 [Filed under LP Biographical: Box #4.022, Folder #1]
• LP writes cheque to: Beatrice J. Wulf amount: $200.00 [Filed under LP Biographical: Box #4.022, Folder #1]
• LP writes cheque to: Benjamin Franklin Hotel amount: $16.33 [Filed under LP Biographical: Box #4.022, Folder #1]
• Letter from LP to William Consolazio, National Science Foundation, RE: enclosed is LP's review of the merits of three Fellows. [Filed under LP Science: Box 14.029, Folder 29.2]
• Letter from Lewis Pino to LP, RE: Pino is glad to hear that LP will still come to speak at Allegheny College. Pino has reserved a guest apartment on campus for LP and AHP. Pino would like to have the titles and a short resume of LP’s popular lecture as well as the technical lecture. For publicity materials, Pino also requests a photography and some biographical materials. [LP’s letter September 2, 1953] [LP’s reply September 22, 1953] [Filed under LP Speeches: (Speeches by Linus Pauling, 1953), Box 1953s, Folder 1953s.16]

• LP writes cheque to National Academy of Sciences: amount: $10.00 [Filed under LP Biographical: Box #4.022, Folder #1]
• Letter from LP to A. H. Walter RE: Sends Mr. Walter copies of a proposal for the extension of Contract Nonr 222(05) with the ONR. [Filed under LP Science: Box 14.032, Folder 32.2]
• Letter from LP to Mr. C. E. Cummings of The Texas Company RE: Is glad to give a recommendation as requested for Dr. Norman Bulman, '52 graduate of Caltech Thinks that he would do good work in chemistry as a whole, but not outstandingly in physical chem. He also has good character. [Letter from Mr. C. E. Cummings July 8, 1953] [Filed under B: Correspondence 1953, Box #37, Folder #20]
• Letter from LP to Prof. John H. Yoe RE: in response to Prof. Yoe's letter of request, LP writes an evaluation of Dr. M. Kent, who is applying for a position in their chemistry dept. at the U. of Virginia. [Letter from Prof. Yoe to LP July 29, 1953] [Filed under LP Correspondence: Box #462, Folder #9].
• Letter from LP to W.H. Freeman RE: Contains suggestions for future revisions of LP's textbooks - mainly that the most recent printings be used to base corrections from to minimize extraneous work. [Filed under LP Books: Box 1953b, Folder 1953b.1].
• Memo from E.C. Watson to LP RE: Schedule of Friday Evening Lectures should be prepared soon. [Related letters from Beatrice Wulf to Dr. Richard F. Baker December 21, 1953, W.H. Corcoran December 21, 1953]. [Filed under: LP Biographical, Box 1.030, Folder 30.8]

• Letter from LP to Dr. D. G. Nicholson RE: in response to Dr. Nicholson's letter of enquiry, LP gives his opinion about the radius of the hydrogen atom to be used in their atom models. Goes on to discuss the recent workshop in Pasadena. [Letter from Dr. Nicholson to LP August 11, 1953] [Filed under N: Correspondence 1953, Box #287, Folder #20]
• Letter from LP to Dr. Edward N. Wise RE: is glad to hear of their program plans for the first meeting of the Arizona section of the American Chemical Society. Unfortunately he is not able to give any talks in Arizona at this time. [Letter from Dr. Wise to LP August 13, 1953] [Filed under LP Correspondence: Box #444, File #1].
• Letter from LP to Dr. Sam R. Hoover RE: thanks him for sending the copies of his paper on studies of oxygen uptake with a magnetic oxygen analyzer. Is curious as to how they applied his oxygen meter. [Letter from Dr. Hoover to LP July 31, 1953] [Filed under H: Correspondence 1953, Box #166, Folder #4]
• Letter from LP to Dr. W. Hume-Rothery of the Inorganic Chemistry Laboratory, Oxford, England RE: writes in response to a letter of August 13, 1953. Goes on to discuss some of the statements included in that letter, which discussed equations found in LP's 1947 Journal of the American Chemical Society paper. Looks forward to reading his manuscript in September. Cannot send a reprint of his 1947 paper on metals [Letter from Dr. W. Hume-Rothery to LP August 13, 1953].
• Letter from LP to Enid Tennyson, Unitarian Service Committee, RE: has no claims to make on the insurance policy for his July trip to Germany. [In response to September 8, 1953 letter from Tennyson to LP]. [Filed under LP Peace: Box 4.001, Folder 1.3]
• Letter from LP to Prof. C A Coulson RE: writes that he is glad that Prof. Coulson will be changing some statements in his book about hybridization for the second edition of the book. Mentions his work in proteins on the problem of the particular choice of energies to use for the different atomic states. [Letter from Prof. Coulson to LP July 14, 1953] [Filed under LP Correspondence: Box #68, Folder #4].
• Research Note Books of LP, RNB 14 RE: notes on collagen. LP notes that he thinks that he has now found the structure of collagen. Drawing of Bifurcated Hydrogen bond included. Gives a summary of structures. [p. 25] [previous info. September 6, 1953, further info. September 19, 1953, p. 24].

• AHP writes cheque to Linda Pauling: amount: $200.00 [Filed under LP Biographical: Box #4.022, Folder #1]
• AHP writes cheque to: Reed College amount: $562.00 [Filed under LP Biographical: Box #4.022, Folder #1]
• Letter from LP to Dr. C.A. Coulson, University of Oxford RE: Introduction for the planned debate regarding resonance theory.
• Letter from LP to Dr. F. C. Lendrum RE: writes that he read the manuscript on the separation of racemic mixtures by electrophoresis in a strong magnetic or centrifugal field, that Dr. Lendrum sent him and is not really sure that he understands what experimental method Dr. Lendrum is proposing. Goes on to discuss the part of his proposal dealing with a magnetic field, and offers to think about it further if Dr. Lendrum makes his ideas more precise. [Letter from Dr. Lendrum to LP July 8, 1953, letter of response from Dr. Lendrum to LP October 6, 1953] [Filed under L: Correspondence 1953, Box #230, Folder #19]
• Letter from LP to Dr. Frank H. Dickey RE: gives Mr. Dickey permission to designate the first paper he does as a contribution from the Gates and Crellin Laboratories of Chemistry. Is interested by the papers. [pencil note on the bottom left of the paper "restrictions, re-prints enclosed"] [Letter from Dr. Frank Dickey to LP July 24, 1953] [Filed under D: Correspondence 1953, Box #98, Folder #18]
• Letter from LP to Dr. Murray Vernon King, National Council of the Arts, Science, and Professions RE: LP would like to read English translations of the resonance theory papers by Sokolov prior to the debate. [In reply to letter from King to LP July 27, 1953].
• Letter from LP to Dr. Philip W. Hemily RE: thanks Dr. Hemily for sending his letter and thesis. Goes on to discuss an answer to a question about Oxygen atoms that Dr. Hemily had regarding his thesis. [Letter from Dr. Hemily to LP July 9, 1953, letter of response from Mr. Hemily to LP October 21, 1953] [Filed under H: Correspondence 1953, Box #166, Folder #4]

• Letter from LP to Dr. Lawrence A. Schmid RE: thanks Dr. Schmid for his thesis on the calculation of the cohesive energy of diamond. Goes on to discuss a few aspects of the paper. [Letter from Dr. Schmid to LP August 5, 1953] [Filed under LP Correspondence: Box #379, Folder #1].
• Letter from LP to Peter Pauling. [Filed under LP Biographical: Box 5.041, Folder 41.7].

  15 September 1953

  Dear Peter:

  I am sorry to report that I have had some trouble with the State Department. They have refused to take action on my request that the passport be validated for our trip to India. When no action had been taken yesterday, I changed the reservations from this morning to this evening, which would not allow us to stay over night in New York, but would permit our schedule to be adhered to otherwise. Today, however, I was told that action would not be taken in time to permit us to leave this evening, and I have had to cancel my two lectures in Greece, at the University of Athens and at the National Technical University of Athens. I trust that you are not on our [sic] way to Greece now, or planning to go to meet us there, because we shall not be there.

  There is still a possibility that the passport will be issued in a few days, in which case we shall fly to Israel, and continue with our trip from there.

  There isn't much sense to this action -- delaying in issuing the passport.

  Love from

  Daddy

• Copy of a proposal for the extension of a contract with the ONR researching the structure and properties of proteins and synthetic polypeptides. Submitted to the Office of Naval Research by LP. [Filed under LP Science: Box 14.032, Folder 32.2]
• Letter from D.C. Martin of the Royal Society to LP RE: asks LP to check the entry given against his name in the List of the Fellowship in the 1953 Year Book as the 1954 Year Book is in preparation. [Letter of response from LP to Dr. Martin October 15, 1953].
• Letter from Dr. Kurt Mislow to LP RE: writes that he has been accepted for a part-time position at C.C.N.Y. which still requires a letter of recommendation from Caltech. Asks if LP might lecture for the Sigma Xi chapter at N.Y.U. of which he is Secretary. [Note from Dr. Mislow to LP October 27, 1952, letter from LP to Dr. Mislow September 24, 1953] [Filed under LP Correspondence: Box #248, Folder #4: file (Mislow, Kurt)].
• Letter from Peter Pauling to LP. [Filed under LP Biographical: Box #5.041, Folder #41.7]

  16 Sept 1953

  Dear Daddy,

  I apologize for the first paragraph of my last letter. I would guess I am being fined for signing that letter to Francis.

  It seems to me nickel dipeptide would be excellent. I shall think some more.

  You once told me something about telling the way heme groups were hooked into hemoglobin by blocking something with an additive molecule. I forget most of this, but would like to know more. Would you please tell me something more of this? Or repeat what you told me? You show, as I remember, that the heme is in the middle of somehi> the chains by putting something in and looking at an equilibrium curve or some such thing. I would appreciate knowing a your

  [page 2]

  telling me a little. I am sorry I have forgotten.

  Would you please send a couple of the old style plastic hydrogen bonds with Kendrew. I have broken a couple and want to have an 8 peptide chain.

  Many thanks Daddy.

  Much love,

  Peter

• A manuscript entitled "Notes on the Structure of alpha-Keratin," by Andrew R. Lang is sent to LP. Criticizes both Crick's and LP and Robert Corey's models of helix packing.
• Letter from Jean Sanford, W.H. Freeman and Company, to LP RE: Enclosed is a list of journals that the second edition of General Chemistry is being sent to. LP is asked to review the list for unnecessary or missing journals. [Reply from LP to Freeman September 25, 1953]. [Filed under LP Books: Box 1953b, Folder 1953b.1].
• Letter from Norman S. Macqueen of Macqueen Film Organization to Sir W. L. Bragg RE: sends a 16mm copy of the Bubble film to Sir Bragg. Hopes it is satisfactory for his lecture on the 29th. [Letter of response from LP to Mr. Norman S. Macqueen October 8, 1953] [Filed under M: Correspondence 1953, Box #256, Folder #4]
• Letter from Prof. John H. Yoe RE: thanks LP for his letter of response and evaluation for Dr. M. Kent. [Letter from LP to Prof. Yoe September 11, 1953] [Filed under LP Correspondence: Box #462, Folder #9].

• AHP writes cheque to: Susie Perry [Boormans Market] amount: $7.00 [Filed under LP Biographical: Box #4.022, Folder #1]
• LP writes cheque to: American Academy of Arts and Sciences: amount: $5.00 [Filed under LP Biographical: Box #4.022, Folder #1]
• LP writes cheque to: California Institute of Tech: amount: $5.00 [Filed under LP Biographical: Box #4.022, Folder #1]
• LP writes cheque to: Dover Publications: amount: $1.70 [Filed under LP Biographical: Box #4.022, Folder #1]
• LP writes cheque to: Peter J. Pauling: amount: $100.00 [Filed under LP Biographical: Box #4.022, Folder #1]
• Letter from Peter Pauling to LP. [Filed under LP Biographical: Box #5.041, Folder #41.7]

  18 Sept 1953

  Dear Daddy.

  The college has given me a letter for the Home Office so I can stay in this country saying they will let me stay until Dec. 15^th. I have heard both from the master & from J.C. Burkill that they expect an answer to that letter he sent you. I have no idea what they want you to say. Seems pretty funny to me. Anyway, I guess you should ask John Kendrew what you ought to say & send them something. I am sorry to trouble you like this.

  [Page 2]

  I think John will tell you. I just talked to Senior Tutor, Mr. Wormald. Nice fellow. I think things will go better. I wish the college would say what they did not like.

  Much love

  Peter

• Letter from Silvio Bezzi to LP RE: Hopes to stay in Pasadena for a longer period. Hopes that LP can stop over in Padua, Italy for a while on his way to India. Thanks LP for the hospitality at the lab. [Letter from of reply from LP to Mr. Bezzi October 27, 1953] [Filed under B: Correspondence 1953, Box #37, Folder #20]
• Telegram from Meyer Weisgal to LP, RE: Weisgal is inviting LP to deliver one or two lectures at the Weismann Institute. Weisgal notes that all of LP’s expenses will be paid for by the institute. [LP’s reply NaN, Sept] [Filed under LP Speeches: (Speeches by Linus Pauling, 1953), Box 1953s, Folder 1953s.15]

• AHP writes cheque to Manor Market: amount: $50.00 [Filed under LP Biographical: Box #4.022, Folder #1]
• AHP writes cheque to Robert Dawson Agency: amount: $314.00 [Filed under LP Biographical: Box #4.022, Folder #1]
• AHP writes cheque to: MN Boyer: amount: $3.00 [Filed under LP Biographical: Box #4.022, Folder #1]
• AHP writes cheque to: Mira Loma Mutual Water Company: amount: $202.26 [Filed under LP Biographical: Box #4.022, Folder #1]
• AHP writes cheque to: Walter Fritts amount: $9.00 [Filed under LP Biographical: Box #4.022, Folder #1]
• Research Note Books of LP, RNB 14 RE: Notes on the bending of the alpha helix. Diagram included. [p. 24] [previous info. September 12, 1953, further info. September 20, 1953].

• AHP writes cheque to: Gus Miller: amount: $20.50 [Filed under LP Biographical: Box #4.022, Folder #1]
• Itinerary: Protein Conference, Pasadena [Filed under LP Travel: Box #1.001 Folder 1.10]
• Research Note Books of LP, RNB 14 RE: more notes on the bending of the alpha helix. [p. 26] [previous info. September 19, 1953, further info. September 26, 1953].

• Letter from LP to Lewis Pino, RE: LP informs Pino that he will be coming to Meadville alone. Since LP will be in Israel the preceding week, he will not be able to reach Meadville until November 5th. [Pino’s letter September 10, 1953] [Filed under LP Speeches: (Speeches by Linus Pauling, 1953), Box 1953s, Folder 1953s.16]
• Letter from LP to Meyer Weisgal, RE: LP suggests titles for his two lectures; “The Structure of Proteins” and “The Hemoglobin Molecule in Health and Disease.” LP is planning to come to Tel Aviv by air and leaving New York on October 27th. LP requests that Weisgal advance him the sum to cover the cost of his airfare. [Weisgal’s telegram September 21, 1953] [Weisgal’s reply October 5, 1953] [Filed under LP Speeches: (Speeches by Linus Pauling, 1953), Box 1953s, Folder 1953s.15]
• Pauling Scrapbook: (Pasadena) Star News article entitled "British Scientist Due at Caltech Conference" RE: discusses the conference at Caltech to be held on the structure of proteins in which LP and Sir Lawrence Bragg among other British and American scientists will participate. They will discuss aspects of the application of x-ray techniques to the problem of protein structure. [Filed under: LP Biographical, Box 6.006, Folder 6.40]
• Pauling Scrapbook: News Bureau of California Institute of Technology article RE: discusses the informal conference on the structure of proteins at Caltech with Sir Lawrence Bragg and LP highlighted. [Filed under: LP Biographical, Box 6.006, Folder 6.40]
• Photo: Linus Pauling (front row, third from the left) in a group photograph at the Pasadena Conference on the Structure of Proteins. Pasadena, California. "Wilson / Perutz / Schomaker / Watson / Dunitz / Huxley / Crick / Marsh / Pasternak / Schroeder / Lindley / Trueblood / Bruchner / Huggins / Pepinsky / Palmer / Rollett / Riley / Luzzate / Freeman / Beadle / Davies / Tyler / Wilkins / Kendrew / Rich / Magdoff / King / Pauling / Krimm / Corey / Harker / Sutherland / Astbury / Bear / Bragg / Patterson / Edsall / Schmitt / MacArthur / Furnas / Randall / Elliott / Low / Itano / Trotter / Hughes / Pasadena Conference on the structure of Proteins / California Institute of Technology, Pasadena, California / 21 - 25 September 1953" Photographer unknown. Black and white print. [Filed under LP Photographs: 1953i.19]
• Telegram from Meyer Weisgal to LP, RE: Weisgal asks if LP will be able to leave a day earlier from New York for Israel. The ceremonies start on the 29th of October and Weisgal hopes that LP will reply soon about the exact date that he will be leaving the United States. [LP’s reply September 21, 1953] [Filed under LP Speeches: (Speeches by Linus Pauling, 1953), Box 1953s, Folder 1953s.15]
• Telegram from the Weizmann Institute of Science to LP, sending him flight times. [Filed under LP Speeches: 1953s.15]
• Typed List of "Participants In The Pasadena Conference On The Structure Of Proteins, 21 to 26 September 1953," with LP notes on top, and marked as "Personal File." [Filed under LP Safe: Box 2.039, Folder 39.117]

• AHP writes cheque to Manor Market: amount: $50.00 [Filed under LP Biographical: Box #4.022, Folder #1]
• AHP writes cheque to Rithe Fitch: amount: $7.75 [Filed under LP Biographical: Box #4.022, Folder #1]
• Letter from David E. Green of The University of Wisconsin to LP RE: Touts the success of the book Currents in Biochemical Research, published ten years ago. Plans another publication, for the next volume of the book, and requests that LP write a chapter, along with 19 other outstanding workers in the field of biochemistry. [encloses a list of those who were asked to contribute] [Letter of response from LP to Dr. Green December 11, 1953] [Filed under G: Correspondence 1953, Box #140, Folder #17]
• Letter from Helen Sobell to LP RE: organizing a conference to discuss the thirty-year sentence of Morton Sobell and would like LP to participate. [Handwritten note by LP: "My study of the evidence has convinced me that the thirty-year sentence is unjustified. I want to help to obtain legal reconsideration of the sentence."]. [Related letter from H. Sobell to LP October 28, 1953].
• Letter from LP to Dr. Edward A. Bryan of the Foreign Student Summer Project at M. I. T. RE: Was glad to receive Dr. Bryan's letter of September 10, 1953. Is aware that Peter Chancel, a participant in the Student Summer Project will be visiting C.I.T. October 7, 1953, recommends that he visit with C.I.T.'s Mr. Badger, the leading investigator there in the field of infrared spectroscopy. [Letter of reply from Dr. Edward A. Bryan to LP October 1, 1953] [Filed under B: Correspondence 1953, Box #37, Folder #20]
• Letter from LP to Dr. Pino of Allegheny College RE: In answer to Dr. Pino's September 10, 1953 letter, LP informs him that his plans have changed as his wife will not be able to come. Tells Dr. Pino of his trip to Israel the week before and says that he will let him know about the time of his arrival date. [Filed under LP Speeches: 1953s.16]

• LP writes cheque to: Beatrice J. Wulf: amount: $100.00 [Filed under LP Biographical: Box #4.022, Folder #1]
• Letter from A. H. Walter to the Office of Naval Research (ONR), cc: LP RE: submits copies of the September 16, 1952 proposal for a two-year extension of a contract with the ONR. Goes into legality issues. [Filed under LP Science: Box 14.032, Folder 32.2]
• Letter from Henry Allen Moe, Guggenheim Memorial Foundation, to LP RE: A form letter with personal handwritten notes at the end. Details why the amount of Guggenheim grants is initially low compared to other grants. [Filed under LP Science: Box 14.015, Folder 15.1].
• Letter from LP to Dr. J. Jennen of Gevaert Photo-Production. [Letter from Dr. J. Jennen to LP September 7, 1953] [Filed under J: Correspondence 1953, Box #192, Folder #19]

  23 September 1953

  Dr. J. Jennen

  Gevaert Photo-Producten

  Mortsel, Antwerp

  Belgium

  Dear Dr. Jennen:

  I am sorry to say, in answer to your letter of 7 September, that I do not have any reprints left of my 1939 article in the Proceedings of the National Academy of Sciences.

  I doubt that the conclusion reached by Bates and Hobbs, in their 1951 paper in the Journal of the American Chemical Society, is justified. I may point out that their own conclusion, as stated in italics, is not unambiguous! they say "either because of its absence or of contributions from a compensating polar structure, the usual polar resonance form written for the amides makes a very small or negligible contribution to the structure of the amide group." I judge that their use of the words "or of contributions from a compensating polar structure" means that they are discussing in fact only the electric dipole moment of the amide group, and not the structure, and that the foregoing statement made by them means that the observed dipole moment agrees with a moment calculated by them with neglect of the usual polar resonance form either because the usual polar resonance form does not make a contribution to the dipole moment or because there is some compensating effect that accidentally causes them to find agreement. In any case, I am sure that their work does not justify one to say that the usual polar resonance form is unimportant. Other evidence, far more reliable, indicates clearly that this structure makes a large contribution, and, in fact, that the contribution can be estimated to be about 40 percent in case that the amide group is forming hydrogen bonds, and somewhat smaller, perhaps 30 percent, if it is not forming hydrogen bonds.

  Sincerely yours,

  Linus Pauling:W

• Letter from Theodore T. Puck to LP RE: writes that he was interested in LP's article in The Review of Scientific Instruments. Requests a set of the mentioned models for their use in teaching and thinking about problems. [Letter of response from LP to Prof. Theodore T. Puck October 7, 1953]. [Filed under LP Correspondence: Box #313, Folder #1]
• Note from H. Corliere to LP RE: Asks that LP do him the favor of answering to his "whole world inquiry: "Homage to Einstein." Goes on to list all of the others who have obliged him in his inquiry. [Filed under C: Correspondence 1953, Box #74, Folder #21]

• AHP writes cheque to: Susie Perry [Boormans Market]: amount: $14.00 [Filed under LP Biographical: Box #4.022, Folder #1]
• AHP writes cheque to: Walter Fritts: amount: $9.00 [Filed under LP Biographical: Box #4.022, Folder #1]
• Letter from J. Timmermans to LP, RE: Timmermans is sending LP two copies of the “Comptes-Rendus” of the 9th Council. Timmermans thanks LP for his help in collaborating on the Comptes-Rendus. [LP’s reply October 27, 1953] [Filed under LP Speeches: (Speeches by Linus Pauling, 1953), Box 1953s, Folder 1953s.4]
• Letter from LP to A. H. Walter RE: In reply to Mr. Walter's memo on July 6, 1953, says that he approves Ammendment 7 to Contract N6onr-24432 between Caltech and ONR. [Filed under LP Science: Box 14.032, Folder 32.2]
• Letter from LP to Dr. F. N. van Niekerk RE: writes that Prof. Corey has turned his letter over to him. Goes on to comment on his papers regarding cupric acetate and chromous acetate. Sends reprints of a lecture of his on the unsolved problems of structural chemistry in which there is mention of structures with bonds between metal atoms. [Letter from Dr. van Niekerk to Dr. Corey August 11, 1953] [Filed under LP Correspondence: Box #427, Folder #13].
• Letter from LP to Dr. Irving S. Bengelsdorf, Department of Chemistry, UCLA RE: LP thanks him for sending 2 Japanese articles on the resonance controversy. Mentions he had conversations with Shadnov and Budinin.
• Letter from LP to Dr. Kurt Mislow RE: in response to Dr. Mislow's letter of request, states that he has written him a letter of recommendation. Cannot accept his invitation to speak before the N.Y.U. Sigma Xi chapter. [copy of letter from LP to Prof. Harrow included] [Letter from Dr. Mislow to LP September 16, 1953] [Filed under LP Correspondence: Box #248, Folder #4: file (Mislow, Kurt)].
• Letter from LP to Dr. Makisaburo Ogasawara RE: Looks forward to receiving a copy of his recently published book Exercises in Quantum Mechanics. [Note from Dr. Ogasawara to LP September 9, 1953] [Filed under O: Correspondence 1953, Box #300, Folder #15]
• Material from National Committee to Repeal the McCarran Act [LP involved as "Initiator"]. Newspaper article from the New York Times states that the McCarran-Walter Immigration Act will not be revised at the next session of Congress.
• Note from Jonas Brachfeld, M. D. of the University of Pennsylvania to LP RE: Asks for a letter of recommendation from LP to help him in attaining a "traineeship" in the field of cancer at the National Cancer Institute. He is currently training as a radiologist at U of Penn. [Letter of reply from LP to Dr. Jonas Brachfeld October 6, 1953] [Filed under B: Correspondence 1953, Box #37, Folder #20]

• Letter from LP to Peter Pauling [Filed under LP Biographical: Box #5.041, Folder #41.7]

  25 September 1953

  Dear Peter:

  I am writing to answer your question about the heme-heme interactions in hemoglobin, and also to say something about the work on globular proteins, now that Bragg, Perutz, and Kendrew have presented their work.

  The work about heme-heme interactions in hemoglobin that I mentioned to you was done by Dr. Robert C. C. St. George, at my suggestion, and is published in Science, 114, 629 (1951). I am sending a reprint to you under separate cover. It has been reprinted together with our paper on sickle cell anemia - we decided to reproduce these two reprints, when they became exhausted.

  The work on hemoglobin consisted in determining, by spectrophotometric techniques, the equilibrium constant between hemoglobin and three different alkyl isocyanides, ethyl isocyanide, isopropyl isocyanide, and tertiary butyl isocyanide. These molecules have the composition RNC. Their nature is such that the carbon atom has a strong tendency to form an additional bond, with use of its unshared pair of electrons, and in particular it can form a bond with the iron atom of a heme group, either a free ferroheme group or a heme group in hemoglobin. We found that heme alone combines with the isocyanides to form a compound with one isocyanide molecule and also a compound with two isocyanides molecules - the iron atom, which forms four bonds to four nitrogen atoms of the four pyrrole rings of the porphyrin in heme itself, these four bonds lying in the plane of the porphyrin molecule, can form two additional bonds, extending to either side of the plane, at right angles to it. If it forms one additional bond with isocyanide the compound of the first sort is obtained, and if it forms two bonds the compound of the second sort is obtained. We found that the combining powers of the three alkyl isocyanides with a free heme group were essentially the same, and concluded that the ability of the carbon atom of the isocyanide to combine with an iron atom was essentially independent of the nature of the attached alkyl group.

  When, however, the combining powers of hemoglobin with the three isocyanides were determined it was found that tertiary butyl isocyanide combined only 1/200th as strongly as ethyl isocyanide, with isopropyl in between. We suggested as an explanation of this fact that steric hindrance was involved. It is known that the heme groups in the hemoglobin molecule are fastened on one side to the nitrogen atom of an imidazole ring of a histidine residue of the globin, and that the oxygen molecule or carbon monoxide molecule or, in this case, alkyl isocyanide molecule hooks onto the iron atom on the other side. Our conclusion that steric hindrance is operating in the combination of the alkyl isocyanides led us to conclude

  [Page 2]

  then that there is also protein on this side of the heme group, and accordingly that the four heme groups are buried within the hemoglobin molecule. In our paper a number of other arguments supporting this hypothesis are presented. Also, Jeffries Wyman made the same suggestion on the basis of some results that he had obtained on the heats of combination of hemoglobin with different substances.

  Now I want to say something to you about the Cambridge work on the structure of crystalline globular proteins. It seems to me that this work is going along very well. I now understand what Perutz has been doing with his mercury atoms - he is not using the mercury atoms to determine the sines of his reflections in general, but rather only to answer the questions about sines that had remained nodes in the transform for the crystal by consideration of the dependence of observed intensities on position in the reciprocal lattice, and with use of data from a number of crystals containing different amounts of water. I think that the use of the two mercury atoms may well have added enough power to their efforts to determine sines to have permitted them to find nearly all of the sines, out to the spacing that they have gone to, for the h0l zone. Although there seem to be a few doubtful points still, probably the Fourier that they have obtained - not a very sharp one as yet - is pretty good, and it seems to me to be reasonably interesting. I think, however, that they will have a very great difficulty in determining signs farther out in the reciprocal lattice, although they may succeed. In any case, they will obtain only a projection - the determination of the phases for the layer-line reelections will be very much more difficult, essentially impossible. The problem of the structure of hemoglobin is going to have to be solved by use of other methods as well.

  I am very pleased with the new results that Kendrew has obtained on the holomyoglobin. I think that his Pattersons provide very interesting information. He seems to be able to determine the approximate orientations of rods (presumably helixes) in several of the modifications that he is working with. This field of work seems to me to be well worthy while, and, of course, an effort should be made to make it still more productive.

  I feel that with the situation as it is you might well be justified in concentrating on holomyoglobin - taking over some part of the whole problem, involving perhaps some new point of view - in working for your doctorate. I am not sure that this work would be as profitable as work on simple substances, but you have the advantage of a year's experience, and would accordingly be better off to continue for two years in this field than to shift to the field of simple crystals.

  I feel, however, that you should not continue with myoglobin or some similar globular protein unless you plan to work very hard. It is evident that Kendrew must have been working extremely hard during the last year, to have obtained the results on which he reported.

  [Page 3]

  This letter, then, is being sent to you in order that I may convey to you the impression that I have formed about the globular protein work at Cambridge, as a result of the conference here. I feel not that the globular protein field might well be a satisfactory one for you, for your doctoral work, whereas during the summer I think that I was pessimistic about it.

  Our conference has been going along very well. Our main difficulty is that nearly everyone had been hoping to talk about twice as long as he has been able to talk, because we are meeting only during five days, and there are many questions to be argued about.

  With love,

  [Linus Pauling]

• Letter from LP to W.H. Freeman RE: He has reviewed the list of journals that are being considered for a copy of General Chemistry for review. LP adds four publications to the list. [In reply to September 17, 1953 letter from Sanford to LP]. [Filed under LP Books: Box 1953b, Folder 1953b.1].

• Letter from S.S. Bhatnagar, Ministry of Natural Resources and Scientific Research to LP RE: requests LP's itinerary for his upcoming trip to India. Handwritten note: "I hope you remember our meeting in Pasadena in 1944". [Reply from LP to Bhatnagar October 6, 1953].
• Research Note Books of LP, RNB 14 RE: notes on collagen and the configuration of Polypeptide chains. Notes the Pasadena conference on the configuration of polypeptide chains. Notes comments made by some of the participants of the conference. Goes on to record some more notes on the different helix structures. [p. 27] [previous notes September 20, 1953, further notes September 27, 1953].

• Research Note Books of LP, RNB 14 RE: notes on collagen and the (10, 10, a) and the (14, 14, a) structures. Also notes the collagen diagram. Disputes assumption that collagen is a helix with 10 units in 3 or 7 turns. [p. 29-30] [previous info. September 26, 1953, further info. October 3, 1953].

• Article from Chemical and Engineering News regarding the Astin case entitled "Craig R. Sheaffer Quits Commerce Department." Assistant Secretary of Commerce Craig R. Sheaffer attempted to fire A. V. Astin, director of the NBS. [Filed under LP Science: Box 14.023, Folder 23.3]
• LP writes cheque to: to himself: amount: $180.00 [Filed under LP Biographical: Box #4.022, Folder #1]
• Letter from A. G. Keenan, Assistant Prof., Dept. of Chem., Illinois Institute of Technology, to LP RE: Asks LP a general question regarding his opinion that there exists an error in most books discussing the structure of the nucleus. Discusses his reasoning and asks LP to comment on his observation if he is interested in it. [Letter of response from LP to Prof. Keenan October 7, 1953] [Filed under K: Correspondence 1953, Box #200, Folder #18]
• Letter from John T. Edsall to LP RE: Mentions his appreciation in being invited to a meeting on protein structure in Pasadena. Hopes to have a draft of his report for Science ready soon. Goes on to request that LP accept the position of chairman of a symposium on hemoglobin and the structure and stability of red blood cells that will be held congruent with the American Chemical Society meeting in Kansas City in the Soring. [Letter of response from LP to Dr. Edsall October 7, 1953] [Filed under LP Correspondence: Box #106, Folder #5: file (John T. Edsall)].
• Letter from R. J. Schnitzer of the New York Academy of Sciences to LP RE: invites LP to a conference to honor the 100th birthday of Paul Ehrlich in 1954. Wants LP to give a presentation entitled "Ehrlich's Side Chain Theory in the Light of Immunochemistry." [Letter of response from LP to Dr. Schnitzer October 6, 1953] [Filed under LP Correspondence: Box #379, Folder #1].
• Letter from Victor Guillemin, Jr. to LP RE: writes with questions about the one-sided nature of molecules, and whether magnetic fields are the cause. [Letter of response from LP to Mr. Guillemin October 6, 1953] [Filed under G: Correspondence 1953, Box #140, Folder #17]

• AHP writes cheque to: Marie Antoinette Cakes Co.: amount: $13.85 [Filed under LP Biographical: Box #4.022, Folder #1]
• LP writes cheque to: Peter J. Pauling: amount: $125.00 [Filed under LP Biographical: Box #4.022, Folder #1]
• Letter from A.L. Wirin to LP RE: Wirin has just returned from Washington and requests for LP to get in touch with him as soon as possible. [Filed under LP Safe: Box 2.021, Folder 21.28]
• Letter from Martha Loewenstein to LP, RE: Loewenstein informs LP that his Air France flight from Paris to Tel Aviv has been canceled and suggests that he take a KLM plane from Amsterdam to Israel. [Filed under LP Speeches: (Speeches by Linus Pauling, 1953), Box 1953s, Folder 1953s.15]
• Letter from Peter Pauling to Ava Helen Pauling. [Filed under LP Biographical: Box 5.041, Folder 41.7]

  29^th ix 53

  Dear Mamma,

  Papa wrote me two (really) three letters. Thank you for the $100. I don't need it, and I wear my wool boots (already paid for) and you are a little too good to me. Daddy says I will be thrown out at Christmas. This is rather unfortunate. I don't know that I want to leave. I am glad Linda is back at Reed. I am working pretty hard. There is little else to do. Now I am building a gadget. Too bad. It goes slowly. We need it though. I do not know what to do when I go from here . It would be too bad to be thrown out. It is hard on John Kendrew, because the college does not like it and he got me in there.

  Don Gilbertson is in London. I suppose I shall see him in a few days. Alison and Jan are back . They say they had a good time with you.

  XXXOOO Much love,

  Peter