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• Bill from Adhor Milk farms for April 1949. $32.89 [LP Biographical: Business and Financial 4.059, folder 59.3]
• In April, Pauling and Itano, with S. J. Singer and Ibert Wells, present their results on sickle-cell anemia as a molecular disease at a meeting of the National Academy of Sciences in Washington D.C. "it will be published in Science at the end on November, and it becomes one of his most-cited and has a wide and long-lasting influence". (Paradowski, Robert J.)
• Itinerary for Prof. and Mrs. Tiselius, RE: Details the travel plans and activities from April 8 through April 14, including specific places, times, hotels, flight numbers, and train cars. Lists the itemized costs of all transportation for Prof. Tiselius. [Letter from Executive Secretary to Prof. Arne Tiselius March 15, 1949, note from Prof. Arne Tiselius to LP April 20, 1949] [Filed under LP Correspondence: #407.5]
• Itinerary: Sometime between April 9 and April 14, LP leaves hospital. [Refer to April 7] [Filed under LP Travel Materials: 1932-1954: Box #1.001 Folder #1.7]
• La Valence des métaux et la structure des composés intermétalliques. [French: The valence of metals and the structure of intermetallic compounds] J. Chim. Phys. 46 (1949): 276-287. [Filed under: LP Publications, 1949p.9]
• Newspaper Clipping: “Warns Science Not To Neglect Basic Research”, Publication Unknown, April 1949. [Filed under LP Scrapbooks, 1946-1950: Box #6.005, Folder 5.35]
• Non-Pauling Notes, Typescript, and Reprint: A method for Calculating the Energy of a Bloch Wave in a Metal, by David P. Shoemaker [Filed under LP Science: Assorted Non-Pauling Quantum Mechanics Materials, 1932-1999: Box #2.005 Folder #5.12]
• Photo: Linus Pauling and Robert Rundle standing outside. San Francisco, California. “Rundle & LP / San Francisco / April 1949 / by H. Mask” Black and white print. [Ship #1794] [Filed under LP Photo Box: 1949i.14]
• The resonating-valence-bond theory of metals. Physica 15 (1949): 23-28. Reprinted in: International Conference on the Physics of Metals, (The Hague: M. Nijhoff, April 1949) Netherlands Physical Society, Amsterdam, Netherlands, July 12-17, 1948. [Filed under: LP Publications, 949p.4]

• Letter from Arthur Linz, Vice-President, Climax Molybdenum Company, to LP RE: Informs him that the Climax company and the Molybdenum Corporation of America are jointly willing to contribute the $10,000 research grant LP requested. Also asks when and to whom the check should be sent, and asks when Mr. Linz can visit LP to meet with him, Dr. Waugh, and Professor Sturdivant regarding this research work. [Letters from LP to Linz March 3, 1949, April 7, 1949] [Filed under LP Correspondence Box #71.2, file:(Climax Molybdenum Company, 1948-1949)]
• Letter from Curtis G. Benjamin, President, McGraw-Hill Book Co. to LP RE: Asks if LP has read about the new postal rates on books. Requests LP to protest, if he hasn't already, these bills immediately. [Filed under LP Correspondence: Box #253.4, file:(McGraw-Hill 1949-1950)]
• Letter from W. C. Risser, Director, Engineering & Development, to LP RE: States he approves and admires LP's stand taken in the Ralph Spitzer case, and think that men like President Strand should not occupy places of authority. [Letter from LP to W. C. Risser April 14, 1949] [Filed under LP Biographical: Political Issues: Ralph Spitzer: Academic Freedom and Passport Difficulties, 1942-1994: Box #2.034, Folder 34.2]
• Manuscript: Chemistry in War and Peace, Commonwealth Club, San Francisco, California. [Filed under: LP Speeches, 1949s.5]
• Memo from L. Zechmeister to LP RE: Protests the elimination of authors' addresses from Chemical Abstracts. [Letter from LP to Crane January 6, 1949] [Filed under LP Correspondence: Box #70.2, file:(Chemical Abstracts, 1948-1956)]
• Newspaper Clipping: “Dr. Pauling Will Speak at Faraday Lecture”, Pasadena (California) Star-News, April 1, 1949. [Filed under LP Scrapbooks, 1946-1950: Box #6.005, Folder 5.34]
• Telegram from Frank Aydelotte fro LP. RE: Informs him that an Advisory Board meeting on April 20th is not feasible. [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1946-1952: Box #14.014 Folder #14.4]
• Writes cheque to “Linda Pauling. Allowance” $25.00 [LP Biographical: Business and Financial 4.074, folder 74.1, item 1]

• Bill from Mira Loma Mutual Water Company for $1.81 [LP Biographical: Business and Financial 4.059, folder 59.3]
• Newspaper Clipping: “Chemical Group Ends Session”, San Francisco Bulletin, April 2, 1949. [Filed under LP Scrapbooks, 1946-1950: Box #6.005, Folder 5.34]
• Newspaper Clipping: “Penicillin Hailed as New Basis for Scientific Progress”, San Francisco News, April 2, 1949. [Filed under LP Scrapbooks, 1946-1950: Box #6.005, Folder 5.34]

• Letter from Dr. W. H. Eberhardt, Department of Chemistry, Georgia Tech, to LP RE: Thanks LP for recommending him to the University of New Mexico. Mentions that Georgia Tech recently went from a “School” to an “Institute” and the chemical engineering program recently added a doctoral program. Adds that the chemistry department should also add one soon, but that may be influenced by campus politics. Updates LP on his situation there, stating he is now the Vice-President of the Sigma Xi Club and Program Chairman, as well as working 60 hrs a week teaching and supervising three master's students and six seniors. Adds that he recently went to Oak Ridge National Labs, briefly meeting Werner Von Braun, but was not very impressed with their research set up. Goes on to inform LP that he is working through the support of the Research Corporation with ozone, benzene and the general problem of electronic spectra. Mentions he recently taught an elementary course on quantum mechanics. Includes speculations on the sensitivity of silica gel to pH. (Note in top margin: “Not to be answered”) [Letter from Eberhardt to LP November 14, 1949] [Filed under LP Correspondence: Box #106.3, file:(Eberhardt, William H., 1946, 1947, 1949-1951, 1953, 1955-1956, 1961-1963, 1971, 1981, 1983, 1991)]
• Letter from Emily Bright Wilson, Phi Beta Kappa, to LP. RE: Informs him that they give copies of “The Nature of the Chemical Bond.” to is new Junior members. Asks if there is any way he could sign the copies before they are given away. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from Melvin S. Newman, Ohio State University, to Henry Allen Moe, Guggenheim Foundation. RE: Informs him that he has signed a contract to teach at UCLA for eight weeks in the summer. Asks if he can have 4 months of his fellowship in 1949 and 6 months in 1951. Explains how this fits in with his research. [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1946-1952: Box #14.014 Folder #14.4]

• Bill from Fashion Cleaners to AHP for Dry Cleaning. $4.25 Note at bottom: Paid April 13, 1949 Sutton. [LP Biographical: Business and Financial 4.059, folder 59.3]
• Bill from Vollmann's Super Service for Peter Pauling $4.34 [LP Biographical: Business and Financial 4.059, folder 59.3]
• Letter from I. M. Kolthoff to LP RE: Expresses sympathy with the letters published regarding the Ralph Spitzer case and congratulate LP on his defense of academic freedom. Also thanks LP for his presence at the Nichols dinner and the kind words he spoke. [Letter from LP to IM Kolthoff April 13, 1949] [Filed under LP Biographical: Political Issues: Ralph Spitzer: Academic Freedom and Passport Difficulties, 1942-1994: Box #2.034, Folder 34.2]
• Letter from LP to Dr. Archibald Craig. [Letter from Craig to LP March 26, 1948] [Filed under LP Correspondence Box: #74.17, file:(C: Correspondence, 1949)]

  April 4, 1949

  Dr. Archibald Craig

  106 Coach Street

  Oxford, Penna.

  Dear Dr. Craig:

  I am pleased to answer your letter of March 26, about the relation between color and chemical properties of transition elements. This is a problem that has not yet been solved, although some progress has been made in its solution. A man who is now on the staff of Washington University in St. Louis, Dr. Lindsay Helmholtz, carried on work in our laboratories a couple of years ago along the lines that you mention, with some success, and I think that he will publish some of his results before long. Dr. Norman Davidson, assistant professor of chemistry in our Institute in Pasadena, is also working on the problem of the color of inorganic complexes, and Hildebrand and Pitzer at the University of California wrote a paper on this subject two or three years ago. The work that has been done, however, does not permit any simple statements to be made in explanation of the facts that you have mentioned in your letter, and I shall do no more than refer to this work. You might be interested to read the paper by Hildebrand and Pitzer (or Pitzer and Hildebrand).

  I remember the question that you asked me on dissociation energies. You could find a discussion of this matter in my book THE NATURE OF THE CHEMICAL BOND, Cornell University Press. This discussion was written in 1939, and it would be possible now to amplify it considerably. There is a specialized book on dissociation energies of molecules into atoms, written by an Englishman named Gaydon. The title of his book is DISSOCIATION ENERGIES.

  Sincerely yours,

  [Linus Pauling]

  Linus Pauling:W

• Letter from LP to Dr. C. H. Fisher, Philadelphia Section. RE: Pleased to receive his letter. Informs him of the cost of the trip. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from LP to Mamie Olliver RE: states that he and AHP should be in town during her visit in July, they would be happy to have her visit the Institute and he offers suggestions about places to stay and offers to make her a reservation at the Athenaeum. [Letters from Olliver to LP March 24, 1949, April 14, 1949] [Filed under LP Correspondence: Box #300.11, File: (O: Correspondence, 1949)]
• Letter from W. H. Freeman, W. H. Freeman and Company to LP RE: Explains what the part of the Szmant organic manuscript they have given him represents, gives him information from Szmant about Section One and Two, wants to know if he feels the partial manuscript is modern and logically done and if it is well expressed. (Notes on the back of the last page about the manuscript read: “p1 “recently” p.3 “Ohere is a number” p1 “chem of covalent bond” no p. 3 may be premature anyway. P1. bottom “we conclude...” but this is just a name P2. I object “impossible to see” I prefer a more positive approach. bottom too vague P3. “atom- hollow sphere” why hollow? P3. Footnote confusing and unnecessary. “circular - eccentrates” confusing. P3. Poor disc n of atomic str. P4. Misuse of ion n pot e for ion energy. 6. Unusual def n of orbital. P13. 1 page on hydrogen bond- just too scant! p.21 Why give Bragg law? p22. “magnet” Why give mole ref n eq n Discussion too brief to be useful. p.25 Error in µ CH3Cl calc n.”) [Letter from LP to Freeman April 15, 1949] [Filed under LP Correspondence: 439.7]
• Writes cheque to “Gardening ½ month March. Foster Campbell” [no amount] [LP Biographical: Business and Financial 4.074, folder 74.1, item 1]
• Writes cheque to “Peter Pauling. Allowance” $50.00 [LP Biographical: Business and Financial 4.074, folder 74.1, item 1]

• Bill from Fred M. Boyd, Contractor for $266.00 [LP Biographical: Business and Financial 4.059, folder 59.3]
• Inter-office memo from A. H. Walter to LP RE: Requesting that LP approve attached contract from the Office of Naval Research (1949-03-30). [Filed under LP Science: Office of Naval Research: Correspondence, Contract Status Reports and Project Status Reports, 1947-1963: Box #14.031 Folder #31.1]
• Letter from Dr. Paul Emmett, Mellon Institute, to LP RE: Asks LP for some samples of silica gel treated with methyl-, ethyl-, propyl- and butyl-oranges so he might make some N2 adsorption readings of them. Adds that he could send the samples back if LP wishes, as the readings would not alter the silica gels in any way. [Letter from LP to Emmett April 26, 1949] [Filed under LP Correspondence: Box #109.1, file:(Emmett, Paul, 1937-1959, 1977-1982)]
• Letter from Inga Lucille Faller, Department of Chemistry, Northwestern University to Dr. J. B. Kirkwood, Gates and Crellin Laboratories of Chemistry, Caltech RE: informs that she is writing at the suggestion of Dr. Irving M. Klotz to inquire about the possibility of a post-doctoral fellowship in Kirkwood's department. Especially interested in theoretical chemistry. Gives brief background of education and experience. [Letter from Kirkwood to Faller April 15, 1949] [Filed under LP Biographical: Academia: Box 1.017, Folder 17.3]
• Writes cheque to “Flora Jacobs. Rate of $4.84 per day” [no amount] [LP Biographical: Business and Financial 4.074, folder 74.1, item 1]

• Letter from Alden H. Emery, Executive Secretary, to LP. RE: Informs him that the stenotypist who recorded the San Francisco meeting is unreachable. Requests a summary of his opening remarks. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from Alden H. Emery, Executive Secretary, to Voting Members, Council Policy Committee. RE: Informs them that they must re-ballot for our second nominee for the Perkin Medal, as George O. Curme received the honor in 1935. Requests that they telegraph their reply. [Filed under LP Science: American Chemical Society: Materials re: Committees and Awards, 1944-1949: Box #14.010 Folder #10.5]
• Letter from Dr. Frederick Rossini, National Bureau of Standards to LP RE: Tells LP that he signed a contract with Wiley for his work on chemical thermodynamics, and says he is sorry as their chemistry series appears very attractive and regrets that his own effort could not be included. [Letter from LP to Rossini March 24, 1949, memo from Freeman to LP April 6, 1949] [Filed under LP Correspondence: 439.7]
• Letter from LP to Alden H. Emery, Executive Secretary. RE: Proposes a fee for corporations to be members of ACS. Requests that the matter be brought to the attention of the Board of Directors. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from LP to Clark S. Hobbs, Chairman, Inauguration Committee. RE: Regrets to inform him that he is unable to accept his kind invitation to attend the inauguration of Kraushaar as President of Goucher College. Asks if they would like a representative of ACS to attend. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from LP to Curtis Benjamin, McGraw Hill Book Company, RE: States that he looks forward to seeing Mr. Norman Beers who hasn't yet called. Mentions that the filmstrips prepared by McGraw-Hill didn't meet LP's approval. [Letters from Benjamin to LP March 25, 1949, April 14, 1949] [Filed under LP Correspondence: Box #253.4, file:(McGraw-Hill 1949-1950)]
• Letter from LP to Dr. E.J. Crane, Editor, Chemical Abstracts RE: Urges him to return to the practice of including authors' addresses with their abstracts in Chemical Abstracts. [Memo from Zechmeister to LP April 1, 1949, Letter from Crane to LP April 11, 1949] [Filed under LP Correspondence: Box #70.2, file:(Chemical Abstracts, 1948-1956)]
• Letter from LP to Henry Allen Moe, Guggenheim Foundation. RE: Has checked with van Harreveld about Henneman working in the laboratory and found out that van Harreveld and Wirsma are interested in the possibility. [Reply to LP April 11, 1949] [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1946-1952: Box #14.014 Folder #14.4]
• Letter from LP to John L. Simonsen RE: States that he was pleased that he was selected for the Fritzsche award and was happy that he was able to announce it. [Letter from John L. Simonsen to LP March 28, 1949] [Filed under LP Correspondence: (S: Correspondence, 1949), #378.3]
• Letter from LP to Mr. Lester Berkowitz, Phi Lambda Upsilon. RE: Thanks him for his kindness. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from LP to Prof. F. O. Rice, Catholic University of America, RE: Thanks Rice for the invitation to the luncheon and says he will be ready to speak at 4 pm. [Letters from F. O. Rice to LP March 31, 1949, from LP to Prof. F. O. Rice April 25, 1949] [Filed under LP Correspondence: #340.14]
• Letter from LP to Walter Scott RE: States that he and AHP will be in Philadelphia April 20-24 and that they would like to go on the walk with him through Philadelphia on Sunday morning. [Letter from LP to Walter Scott March 30, 1949, and letter from Walter Scott to LP April 14, 1949, and letter from Executive Secretary to Dr. Walter Scott April 14, 1949] [Filed under LP Correspondence: (S: Correspondence, 1949), #378.3]
• Letter from Roger Cantarel to LP RE: Sends LP a reprint of his article on research similar to LP's. Adds that he received the address from Professor Gallais at the University of Toulouse. [Letter from LP to Cantarel April 29, 1949] [Filed under LP Correspondence Box:#74.17, file:(C: Correspondence, 1949)]
• Letter from W. H. Freeman, W. H. Freeman and Company to Dr. George W. Wheland, Department of Chemistry, University of Chicago cc: LP RE: Says he has heard that his manuscript for an advanced organic chemistry course is taking shape, and asks him to consider W. H. Freeman as the publisher when it is ready for publication. [Memo from Letts to Freeman April 14, 1949] [Filed under LP Correspondence: 439.7]
• Letter from W.H. Freeman, W.H. Freeman and Co., to LP . RE: Freeman says that he believes LP should include in Chapter 1 of "College Chemistry" most of what is in Chapter 1 of "General Chemistry," as well as the nice relationship from LP's speech regarding the relationship of Pure Science, Applied Science, and Technology. [Filed under LP Manuscripts of Books, 1950b.1]
• Memo from W. H. Freeman, W. H. Freeman and Company to Dr. Lloyd E. Malm, cc: LP RE: Says he believes LP would be interested in a statement from him regarding their usage of molarity and molality since some teachers have been criticizing it. [Filed under LP Correspondence: 439.7]
• Memo from W. H. Freeman, W. H. Freeman and Company to LP RE: Informs him that Rossini has already signed a contract with Wiley. [Letter from Rossini to LP April 6, 1949] [Filed under LP Correspondence: 439.7]
• Memo from W. H. Freeman, W. H. Freeman and Company to LP RE: Says that he, Malm and Frantz think it might be worth extending the qualitative section and perhaps even adding more on the qualitative theory. [Letter from LP to Freeman April 22, 1949] [Filed under LP Correspondence: 439.7]
• Memorandum from W.H. Freeman, W.H. Freeman and Co., to LP . RE: Freeman expects many new illustrations for "College Chemistry," but hopes to use many of the illustrations in their current forms, to save on the cost of engravings. [Filed under LP Manuscripts of Books, 1950b.1]

• Itinerary: enters hospital [?] PCC, Faraday Lecture, Large Molecules in Blood and Their Usefulness to Man [Filed under LP Travel Materials: 1932-1954: Box #1.001 Folder #1.7]
• Letter from Alden H. Emery, Executive Secretary, to Board of Directors. RE: Attaches a draft of the minutes of the March 27th meeting. Requests that corrections be sent promptly. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from Alden H. Emery, Executive Secretary, to LP. RE: Attaches the Charter for the new San Gorgonio Section. Requests that it be signed and sent to Gunther. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from Alden H. Emery, Executive Secretary, to LP. RE: Informs him that Cheesman is unable to accept the appointment to the Committee on Patent and Related Legislation. Asks who he would like to appoint to replace him. [Filed under LP Science: American Chemical Society: Materials re: Committees and Awards, 1938-1950: Box #14.008 Folder # 8.17]
• Letter from Alden H. Emery, Executive Secretary, to W. L. Cheesman, US Department of Agricultural. RE: Is sorry to learn that he cannot accept the appointment. [Filed under LP Science: American Chemical Society: Materials re: Committees and Awards, 1938-1950: Box #14.008 Folder # 8.17]
• Letter from C. H. Fisher, Philadelphia Section, to LP. RE: Thanks him for his letter. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from F. A. Gunther, Assistant Insect Toxicologist, University of California, to LP. RE: Asks if there are any changes to his plans for April 14th. Hopes he can present the charter to the section at that time. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from LP to Arthur Linz, Vice-President, Climax Molybdenum Company, cc: President DuBridge, Professor Sturdivant, and Mr. Green RE: Thanks Mr. Linz for the news that MCM and the Molybdenum Corporation of America would be granting the requested $10,000 for research; advises that the check should be sent to the Business Manager of Caltech, Mr. George W. Green; and discusses possible times in the summer to meet either in Pasadena or out east. [Letters from Linz to LP April 1, 1949, April 12, 1949] [Filed under LP Correspondence Box #71.2, file:(Climax Molybdenum Company, 1948-1949)]
• Letter from T. L. Cairns, Delaware Section, to LP. RE: Thanks him for his interesting lecture. Encloses the photograph. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter to LP from H.W. Thompson, St. John's College, Oxford. RE: Asks LP how to collect the promised $800. Would prefer to collect them upon his arrival in New York. [LP's reply April 27, 1949] [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1946-1952: Box #14.014 Folder #14.4]
• Memo from W. N. Lacey to Members of the Committee on Graduate Study RE: states that unless the chairman receives suggestions to the contrary, the Committee rule in regard to grades of D obtained by candidates for an engineer's degree will be interpreted as outlined in the memo. [Filed under LP Biographical: Academia: Box 1.018, Folder 18.2]
• Writes cheque to “Bennett Travel Agency. Advance for Tickets” $50.65 [LP Biographical: Business and Financial 4.074, folder 74.1, item 2]

• Bill from Southern California Edison Company for $30.40 [LP Biographical: Business and Financial 4.059, folder 59.3]
• Letter from J. Fleischer to Walter J. Murphy, Editor, Chemical and Engineering News RE: Writes to record his support of LP's protest in the Ralph Spitzer case and writes in reaction to the letters printed in the publication from LP to Strand and from Strand to LP. [Letter from J. Fleischer to LP April 22, 1949] [Filed under LP Biographical: Political Issues: Ralph Spitzer: Academic Freedom and Passport Difficulties, 1942-1994: Box #2.034, Folder 34.2]
• Letter from LP [signed in his absence] to Dr. Frederick D. Rossini, Section on Thermochemistry and Hydrocarbons, National Bureaus of Standards RE: Thanks him for his letter and says he is sorry they are unable to have his book on chemical thermodynamics included in their series. [Letter from Rossini to LP April 6, 1949] [Filed under LP Correspondence: 439.7]
• Letter from LP to Dr. D.W. Woolley, The Rockefeller Institute for Medical Research RE: Thanks him for the sample of 100 mg of Substance 1 and sends him a reprint of his paper on hemoglobin under a separate cover. [Letter from Woolley to LP March 23, 1949] [Filed under LP Correspondence: 443.17]
• Letter from W. H. Freeman, W. H. Freeman and Company to Dr. Frank H. Westheimer, Department of Chemistry, University of Chicago cc: LP RE: Reaffirms his and LP's interest in his organic chemistry text. [Letter from Freeman to LP August 11, 1949] [Filed under LP Correspondence: 439.7]
• Memorandum from J. P. Youtz, to LP. RE: Thanks him for his note. Finds the third Wednesday of July to be satisfactory. Informs him that there will be a change in officers in June, and the new officers will confirms the engagement. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Newspaper Clipping: “Dr. Pauling Delivers P.C.C. Faraday Lecture”, Pasadena (California) Star-News, April 8, 1949. [Filed under LP Scrapbooks, 1946-1950: Box #6.005, Folder 5.35]

• Itinerary: Alumni Seminar (cancelled) [Filed under LP Travel Materials: 1932-1954: Box #1.001 Folder #1.7]
• Newspaper Photo with Caption: “Something to Talk About”, Pasadena (California) Star-News, April 9, 1949. [Filed under LP Scrapbooks, 1946-1950: Box #6.005, Folder 5.35]

• Article: “Science Gnaws at Wool of Link to Foil Moths”, by Linus Pauling, Commonwealth, Vol. XXV, No. 15, April 11, 1949. [Filed under LP Scrapbooks, 1946-1950: Box #6.005, Folder 5.36]
• Bill from George M. Stambach to AHP for “Removing tree and cutting up wood. Tuttle Bros. Bill.” $161.04. Note at bottom: Paid April 27-49. GMS [LP Biographical: Business and Financial 4.059, folder 59.3]
• Clothes moths and “Toni's”: Science gnaws at wool link to foil moths. The Commonwealth (Address to the Commonwealth Club of California) 25 (April 1949): 65-66, 70. [Filed under: LP Publication, 1949p.7]
• Confidential Letter from Detlev W. Bronk, Foreign Secretary, to Members of the National Academy of Sciences. RE: Lists the foreign associates of the Academy. Informs them that there are open positions. [Filed under LP Science: National Academy of Sciences, 1945-1951: Box #14.020 Folder #20.3]
• Journal Article: “Some Recent Trends in Biochemistry”, Chemical and Engineering News, vol. 27, no. 15 (April 11 1949): 1041-1042. [Filed under LP Newspaper Clippings, 1949n.4]
• Letter from Alden H. Emery, Executive Secretary, to Dr. Arne Tiselius. RE: Attaches a check for the traveling expenses. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from Alden H. Emery, Executive Secretary, to LP. RE: Informs him of three vacancies on the Committee on Constitution and Bylaws. [Filed under LP Science: American Chemical Society: Materials re: Committees and Awards, 1938-1950: Box #14.008 Folder # 8.16]
• Letter from Clark S. Hobbs, Vice-President, Goucher College, to LP. RE: Would like a representative of ACS to attend. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from Clayton S. Wynn, Treasurer, Western Connecticut Section, to LP. RE: Encloses a check to cover the traveling expenses. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from Dr. E.J. Crane, Editor, Chemical Abstracts to LP RE: Assures him that addresses will be restored to the abstracts as soon as funds permit. Encloses a letter to the Editor he has written to Chemical and Engineering news. [Letter from LP to Crane April 6, 1949] [Filed under LP Correspondence: Box #70.2, file:(Chemical Abstracts, 1948-1956)]
• Letter from George A. Baitsell, Society of the Sigma Xi, Yale University, to LP RE: States he is sending a copy of the book containing LP's article, and asks for any corrections for the reprint that will be printed soon. States LP can get a discount on this book. [Letter from LP to Dr. George A. Baitsell April 21, 1949] [Filed under LP Correspondence: #375.2]
• Letter from George Calingaert, Ethyl Corporation, Research Laboratories to LP RE: Points out that the wrongs committed against Ralph Spitzer are that of personal freedom, not that of academic freedom because his dismissal did not take away his freedom of teaching a certain matter but it discriminated against him taking away his freedom to have whichever political views he chooses. [Letter from LP to Dr. Calingaert April 15, 1949] [Filed under LP Biographical: Political Issues: Ralph Spitzer: Academic Freedom and Passport Difficulties, 1942-1994: Box #2.034, Folder 34.2]
• Letter from Henry Allen Moe, Guggenheim Foundation, to Dr. Elwood Henneman. RE: Informs him his inability to work in Dr. Lorente de No's laboratory. Informs him that a place may be available Dr's Van Harreveld and Wiersma. [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1946-1952: Box #14.014 Folder #14.4]
• Letter from Miller N. Hudson, Jr, Member ACS to LP RE: States his opinion in the case of Ralph Spitzer and states that they do not feel kindly toward Communists and feels the duty of the Society is to interest itself in science, not politics. Can't appreciate any action by the “Society or its officers which could be interpreted by those outside the Society as lending a cloak of protection to Communists or their political activities” [Note in upper right corner: “not to be answered” [Filed under LP Biographical: Political Issues: Ralph Spitzer: Academic Freedom and Passport Difficulties, 1942-1994: Box #2.034, Folder 34.2]
• Letter from R. B. Corey to Dr. Irvin Fuhr, U.S. Public Health, cc: LP RE: Detailed discussion of individual items listed in grant-in-aid request to clarify budget issues as addressed during a phone conversation between Fuhr and Corey. [Filed under LP Science: United States Public Health Service: "X-ray Diffraction Investigations of the Structure of Protein Molecules", grant RG 1987, [Changed to H-2143 (Chemistry 150)] 1948-1958: Box #14.041 Folder #41.1]
• Letter to LP & sponsors from Henry Pratt Fairchild of Cultural and Scientific Conference for World Peace stating that they must assume leadership to stop the drift towards war. Attached are notes from the proceedings of their recent conference. [Filed under LP Peace: Assorted Peace Groups, (Na-On): Box #4.013 Folder #13.4]
• Letter to LP from George A. Baitsell of Sigma Xi stating that they are sending a copy of Science in Progress, that contains his article, under separate cover. [LP's reply April 21, 1949]
• Letter to LP from Henry Allen Moe, Guggenheim Foundation. RE: Encloses a letter from Dr. Henneman. [Reply to LP's letter April 6, 1949] [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1946-1952: Box #14.014 Folder #14.4]

• Bill from Glendale Sanitarium and Hospital for LP. Room 5 days, Duracillin, Group Nursing, Lab, Suspensory, Telephone & Times. $61.42. Stamped with “Glendale Sanitarium and Hospital. PAID Apr 12 1949. Accept thanks” [LP Biographical: Business and Financial 4.059, folder 59.3]
• LP gives radio talk “How the Body Fights Disease”. Noted in a letter from Robert E. Frazier to LP May 22, 1949
• Letter from Alden H. Emery, Executive Secretary, to LP. RE: Has received his letter regarding the increased corporation dues. Will include the subject on the agenda for the June 4th meeting. Discusses the issue. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from Arthur Linz, Vice-President, Climax Molybdenum Company, to LP RE: States that he has noted the contents of LP's April 1, 1949 letter and will await advice from LP regarding the arrival of Dr. Waugh in Pasadena in order to make plans to visit with them and Professor Sturdivant before the opening of fall term. [Letters from LP to Linz April 1, 1949, May 12, 1949] [Filed under LP Correspondence Box #71.2, file:(Climax Molybdenum Company, 1948-1949)]
• Letter from Bertram A. Washington, Chairman, Federal Employees Defense Committee, to LP RE: Asks LP to serve as a member of a National Citizens Committee in support of the Federal Employees Defense Committee. [Letter from LP to Washington April 27, 1949] [Filed under LP Correspondence: Box #128.14, file:(F: Correspondence, 1949)]
• Letter from Linus Pauling Jr to AHP & LP RE: Talks about LP's varicocele repair job and hopes that Mrs. Olsen's mastectomy was in time to get rid of the cancer. Thinks they should bring Crellin. [Filed under LP Biographical: Personal & Family, Family Correspondence: Linus Carl Pauling, Jr. 1946-1956: Box #5.037, Folder 37.4]

  [postmarked Apr 12, 1949]

  Dear Mom and Dad

  Dad told me he was due for his varicocele repair job. I hope it hasn't proved too uncomfortable. It will be a relief to him to have it cleared up.

  I'm sorry to hear about Mrs. O[...]. I certainly hope that her mastectomy was in time. In a year or so she'll probably know whether her cancer had gotten beyond the field of operation or not. I'll write her a little note.

  I remember old Pickett - the microscope he speaks of is a reproduction of Leewenhoek's that I made as a project - not very good, I'm afraid.

  I think it would be excellent for you to bring Crellin he'd have a fine time.

  June is practically here!

  Much love,

  Linus

• Letter from Martin Meyer, Chairman, New York Chapter, American Institute of Chemists, to Guggenheim Memorial Foundation. RE: Requests a speaker for their 1949-1950 program [Reply from Moe, April 14, 1949] [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1946-1952: Box #14.014 Folder #14.4]
• Letter from Reuben E. Wood, Department of Chemistry, George Washington University, to LP RE: Writes in support of LP's stance in the Ralph Spitzer case. States that he agrees with LP's view and the fact that his dismissal is a violation of the principles of academic freedom that permits a faculty member to express views on any subject outside the classroom. [Letter from LP to Reuben E. Wood April 20, 1949] [Filed under LP Biographical: Political Issues: Ralph Spitzer: Academic Freedom and Passport Difficulties, 1942-1994: Box #2.034, Folder 34.2]
• Letter from Stanley P. Reimann, to Dr. Alden H. Emery, Executive Secretary. RE: Asks why an invited guest must pay a registration fee to present at ACS functions. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Newspaper Clipping: “Dr. Linus Pauling to Charter Local Chemistry Section”, Riverside (California) Enterprise, April 12, 1949. [Filed under LP Scrapbooks, 1946-1950: box #6.005, Folder 5.34]
• Note from Meyer Freedman to LP RE: Discusses the concept of resonance between tetra and hexavalent silicon as presented in LP's “The Nature of the Chemical Bond”. Notes he has worked with this concept through the Office of Naval research and encloses a copy of his thesis on the subject, titled “Cleavage of Silicones by Hydrogen Fluoride”. [Letter from LP to Freedman May 17, 1949] [Filed under LP Correspondence: Box #128.14, file:(F: Correspondence, 1949)]

• Bill from Southern Counties Gas Company of California for $10.78 [LP Biographical: Business and Financial 4.059, folder 59.3]
• Letter from Alden H. Emery, Executive Secretary, to LP. RE: Requests to know of his wishes concerning the general meeting in September. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from Dr. Floyd T. Tyson, Chairman, Committee on Chemical Literature, Philadelphia Section, A. C. S., to LP RE: Describes his experience a the 53th Annual Meeting of American Academy of Political and Social Sciences and discusses the contrasting presentations by Dr. Clair Wilcox and Dr. Elvin H. Killheffer on the subject of the I.T.O. Charter. Mentions and briefly summarizes the speeches given by Cord Meyer Jr., Randle Elliot, Dr. Van Kirk. Encloses a program titled “World Government: Why? When? How?” and a brochure titled “Who's Who Among the Speakers.” [Letter from LP to Dr. Floyd T. Tyson May 16, 1949] [Filed under LP Correspondence: #410.14]
• Letter from LP to Alden H. Emery, Executive Secretary. RE: Sympathizes with his situation. Encloses a brief statement of his introductory statement. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from LP to I.M. Kolthoff, School of Chemistry, University of Minneapolis. [Letter from I.M. Kolthoff to LP April 4, 1949] [Filed under LP Biographical: Political Issues: Ralph Spitzer: Academic Freedom and Passport Difficulties, 1942-1994: Box #2.034, Folder 34.2]

  April 13, 1949

  Dr. I. M. Kolthoff

  School of Chemistry

  University of Minnesota

  Minneapolis 14, Minn.

  Dear Piet:

  Thank you very much for your kind, letter of April 4.

  I hope that the world will get safely through the period of strife and misunderstanding that it is now in. If it does so, without war, it will be only because people insist on thinking for themselves and on shaking themselves free of ideas, such as nationalism, useful in the past but are now becoming a menace. I was pleased by the speech on world federation that Chancellor Hutchins gave here a few days ago, but dismayed by the way in which the newspapers ridiculed him.

  It was a great pleasure for me to be with you at the dinner in New York at which you were given the Nichols medal, and I shall look forward to seeing you again one of these days.

  Sincerely yours,

  [Linus Pauling]

  Linus Pauling:W

  Dictated by Linus Pauling. Signed in his absence

• Letter from Milton Burton, Division of Physical and Inorganic Chemistry, to Members of the Executive Committee. RE: Is concerned with the difficulties of publishing in the field of physical chemistry. Would like their opinion on the matter. [Filed under LP Science: American Chemical Society: Materials re: Committees and Awards, 1938-1950: Box #14.008 Folder # 8.18]
• Letter from W.H. Hughes, Jr., Climax Molybdenum Company, to George W. Green, Business Manager of Caltech, cc: Marx Hirsch (Molybdenum Corp. Of America) and LP RE: States that the included check is the joint contribution of Climax Molybdenum and Molybdenum Corporation of America for the research on the structural chemistry of molybdenum. Mr Hughes suggests Mr Green contact LP if he has any further questions. [Letter from LP to Linz April 7, 1949] [Filed under LP Correspondence Box #71.2, file:(Climax Molybdenum Company, 1948-1949)]
• Newspaper Clipping: “Future of Pure Research”, San Antonio (Texas) News, April 13, 1949. [Filed under LP Scrapbooks, 1946-1950: Box #6.005, Folder 5.35]

• Itinerary: San Francisco ACS - Riverside [Filed under LP Travel Materials: 1932-1954: Box #1.001 Folder #1.7]
• Letter from Curtis Benjamin, McGraw-Hill Book Co., to LP RE: States that they are sorry LP doesn't approve of their chemistry filmstrips and they appreciate his suggestions. [Letter from LP to Benjamin April 6, 1949] [Filed under LP Correspondence: Box #253.4, file:(McGraw-Hill 1949-1950)]
• Letter from Dennis Flanagan, Managing Editor, Scientific American, to LP RE: Thanks him for the Roger Hayward pictures and asks if it would be possible for him to write an article on the theoretical concepts of valence. [Letters from Dennis Flanagan to LP March 29, 1949, from LP to Mr. Dennis Flanagan April 18, 1949] [Filed under LP Correspondence: #374.9]
• Letter from E. H. Volwiler, President-Elect, to Members of the Publications Committee of the Board of Directors. RE: Informs them that they have the opportunity to meet with Mr. Hubbard on June 3rd. Informs them of the meeting time and place. Will send the agenda soon. Note at bottom: Would like to have LP attend. [Filed under LP Science: American Chemical Society: Materials re: Committees and Awards, 1938-1950: Box #14.008 Folder # 8.18]
• Letter from E. L. Warrick, Pittsburgh Section, to LP. RE: Informs him of their willingness to help him make reservations for accommodations. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from Executive Secretary of LP to Walter Scott RE: States that LP has made changes in his eastern trip and will not be in Philadelphia for the meeting of the American Philosophical Society. [Letter from LP to Dr. Walter Scott April 6, 1949] [Filed under LP Correspondence: (S: Correspondence, 1949), #378.3]
• Letter from Henry Allen Moe to Martin Meyer, Brooklyn College. RE: Suggests that LP would be the best person to give a talk on behalf of the Committee of Selection. [Reply to Meyer April 12, 1949] [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1946-1952: Box #14.014 Folder #14.4]
• Letter from LP to Dr. S.K. Sarkar, Officiating Registrar, University of Delhi RE: States he would be pleased to serve as a member of the Board of Examiners of a thesis on physical chemistry. [Letter from SK Sarkar to LP March 30, 1949] [Letter from SK Sarkar to LP September 27, 1949] [LP Biographical CIT: Materials re: Teaching and Advising of Graduate Students by Linus Pauling, 1935-1963: Box #1.016, Folder 16.2]
• Letter from LP to Dr. S.K. Sarkar, Registrar at the University of Delhi, India. LP accepts Dr. Sarkar's request that he be on the Board of Examiners for a thesis hearing on a physical chemistry dissertation. [Reply to Sarkar March 30, 1949, Sarkar's reply September 27, 1949]
• Letter from LP to W. C. Risser, Director, Engineering and Development, Bristol Laboratories, Inc RE: Thanks him for his letter and says it gives him courage to stay with the generally unpopular stand he has taken. [Letter from W. C. Risser to LP April 1, 1949] [Filed under LP Biographical: Political Issues: Ralph Spitzer: Academic Freedom and Passport Difficulties, 1942-1994: Box #2.034, Folder 34.2]
• Letter from LP to Walter G. Swanson, San Francisco Convention and Tourist Bureau. RE: Thanks him for the fruit basket and bottle of wine. Inform s him that the meeting was successful. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from Mamie Olliver to LP RE: thanks LP for his travel suggestions and states that her plans have changed slightly and that she will be there earlier, but would still like to visit and, would especially like to see AHP. [Letters from LP to Olliver April 4, 1949, April 20, 1949] [Filed under LP Correspondence: Box #300.11, File: (O: Correspondence, 1949)]
• Letter from Ralph B. Atkinson to LP RE: Thanks LP for speaking for what he believes and offers his help. [Letter from LP to Ralph B. Atkinson May 17, 1949] [Filed under LP Biographical: Political Issues: Ralph Spitzer: Academic Freedom and Passport Difficulties, 1942-1994: Box #2.034, Folder 34.2]
• Letter from Walter Scott to LP RE: States that most buildings on his walking tour are closed on Sunday, but they could see them from the outside, however they could come any other day. [Letter from LP to Dr. Walter Scott April 6, 1949] [Filed under LP Correspondence: (S: Correspondence, 1949), #378.3]
• Memo from Martha D. Letts to W. H. Freeman, W. H. Freeman and Company cc: LP RE: says they just received a letter from Wheland thanking them for their interest in his text, but he is sorry to say that he has already signed a contract with Wiley and the text is scheduled for publication in September. [Letter from Freeman to Wheland April 6, 1949] [Filed under LP Correspondence: 439.7]
• Writes cheque to “Fashion Cleaners. Dry Cleaning” $4.25 [LP Biographical: Business and Financial 4.074, folder 74.1, item 1]
• Writes cheque to “Fred M Boyd. Painting kitchen” $266.00 [LP Biographical: Business and Financial 4.074, folder 74.1, item 1]

• Letter from Alden H. Emery, Executive Secretary, to LP. RE: Informs him of a misunderstanding about the awarding of medals. Informs him that the medals will be awarded on September 19th. Requests to know is wishes regarding the award representatives. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from David Harker, Knolls Research Laboratory, General Electric, to LP. RE: Delighted to hear that he will talk at the Cornell Meeting. Informs him that he has half an hour to talk. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from Dr. C. Lalor Burdick to LP RE: Asks if Monday, May 2, would be a good time to visit Cal Tech and see some of the work he is doing in biochemistry and inorganic chemistry. [Letter from LP to Burdick April 20, 1949] [Filed under LP Correspondence: Box #37.16, file:(B: Correspondence 1949)]
• Letter from E. H. Volwiler, President-Elect, to Dr. Milton Burton. RE: Thanks him for his letter. Suggests that he discuss the matter with Dr. S. C. Lind. [Filed under LP Science: American Chemical Society: Materials re: Committees and Awards, 1938-1950: Box #14.008 Folder # 8.18]
• Letter from Executive Secretary, to Secretary. RE: Informs him that LP will not be able to attend the meeting of the society due to illness. Requests that he cancel his reservation at the Benjamin Franklin Hotel. [Filed under LP Science: American Philosophical Society, 1936-1963, 1989, 1991: Box #14.011 Folder #11.2]
• Letter from Henry Allen Moe, Guggenheim Foundation, to Dr. Melvin S. Newman, Ohio State University. RE: Asks when he will be free to use the Fellowship on full-time basis to forward the work proposed in his application. [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1946-1952: Box #14.014 Folder #14.4]
• Letter from John G. Kirkwood, Caltech, to Miss Inga Lucille Faller, Department of Chemistry, Northwestern University RE: responds to letter of April 5 inquiring about opportunities for post-doctoral research in theoretical chemistry at Caltech. Does not at present have any openings supported by project funds at his disposal, however, is enclosing application blanks which she can fill out and return on the possibility that something suitable might develop later. Also requests letters from Dr. Klotz and Dr. Dole concerning her qualifications. Also suggests applying for outside fellowships, such as a U.S. Public Health Service fellowship and applying them to work at Caltech. [Letters from Faller to Kirkwood April 5, 1949, April 19, 1949] [Filed under LP Biographical: Academia: Box 1.017, Folder 17.3]
• Letter from LP [signed in his absence] to W. H. Freeman, W. H. Freeman and Company RE: Regrets to have to report unfavorably on the Szmant manuscript, says it is a noble effort but just not good enough, lists out problems with clarity and presentation as well as the smaller errors in the first 30 pages, and returns it under separate cover. [Letters from Freeman to LP April 4, 1949, April 28, 1949] [Filed under LP Correspondence: 439.7]
• Letter from LP to Dr. C. H. Fisher, Eastern Regional Laboratory. RE: Thanks him for his letter. Informs him that the scroll arrived safely. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from LP to Dr. George Calingaert RE: Says he was pleased to read his letter and he agrees the principal issue involved is “a broader one than is suggested by the term ‘academic freedom'”. [Letter from Calingaert to LP April 11, 1949] [Filed under LP Biographical: Political Issues: Ralph Spitzer: Academic Freedom and Passport Difficulties, 1942-1994: Box #2.034, Folder 34.2]
• Writes cheque to “Peter. Cash for me, etc” $50.00 [LP Biographical: Business and Financial 4.074, folder 74.1, item 1]

• Bill from Pacific Telephone and Telegraph Company for $16.52. Note on side: Save new rate. [LP Biographical: Business and Financial 4.059, folder 59.3]
• Letter from LP to Alden H. Emery, Executive Secretary. RE: Appoints Rakestraw, Fray, and Wilson to the Committee on Constitution and Bylaws. [Filed under LP Science: American Chemical Society: Materials re: Committees and Awards, 1938-1950: Box #14.008 Folder # 8.16]
• Letter from LP to J. F. Mathias, Guggenheim Foundation. RE: Has talked to Dr. Newman about his appointment. Does not see much justification for allowing him to hold his fellowship this year. Cannot recommend deviation from the procedure recommended by the Committee of Selection. [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1946-1952: Box #14.014 Folder #14.4]

• Manuscript Notes: “Dissociation Energies of Elementary Diatomic Molecules” [Filed under LP Science: Manuscript Notes by Linus Pauling re: Chemical Bonds, 1944-1953: Box #3.005 Folder #5.15]

• Letter from Frank T. Gucker, Jr., Chairman of the Department of Chemistry, to Milton Burton. RE: Was interested in his letter. Thinks the problem should be addressed at the next Executive Committee meeting. [Filed under LP Science: American Chemical Society: Materials re: Committees and Awards, 1938-1950: Box #14.008 Folder # 8.18]
• Letter from G. W. Beadle, to Alden H. Emery, Executive Secretary. RE: Informs him of his negative opinion of the fee charged to invited non-member speakers. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from John C. Bailar, Jr., University of Illinois, to Beatrice Wulf. RE: Informs him that they can arrange for the materials needed for his talk. Reminds him that his audience will have just had dinner. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from John C. Bailar, Jr., University of Illinois, to LP. RE: Encloses material from the Alabama Polytechnic Institute. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from John C. Bailar, Jr., University of Illinois, to Milton Burton. RE: Was interested by his letter. [Filed under LP Science: American Chemical Society: Materials re: Committees and Awards, 1938-1950: Box #14.008 Folder # 8.18]
• Letter from LP to Alden H. Emery, Executive Secretary. RE: Thank him for his letter. Agrees with his idea of having two short addresses, one by Professor Lamb and one by himself. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from LP to Dennis Flanagan, Managing Editor, Scientific American, RE: States that he hopes that the Roger Hayward pictures have reached Flanagan and states that he has told Hayward they would reimburse him. [Letters from Dennis Flanagan to LP April 14, 1949, from LP to Mr. Dennis Flanagan April 20, 1949] [Filed under LP Correspondence: #374.9]
• Letter from LP to Dr. Detlev W. Bronk, Foreign Secretary. RE: Comments on the proposed foreign associates for the Academy. Recommends possible representatives in the fields of physics, chemistry, physiology, and biochemistry. [Filed under LP Science: National Academy of Sciences, 1945-1951: Box #14.020 Folder #20.3]
• Letter from Theodor Rosebury, Harry Grundfest, for the Executive Committee, American Association of Scientific Workers to A. L. Strand, President, Oregon State College RE: States that investigation into the Spitzer case has let to the conclusion that the dismissal of Ralph Spitzer was “based directly and entirely on his political views and activities” and has nothing to do with Spitzer's competence. States they believe this action to be a “grievous error” and they urge him to reconsider. Copies of the letter are being sent out to interested citizens and the press. [Filed under LP Biographical: Political Issues: Ralph Spitzer: Academic Freedom and Passport Difficulties, 1942-1994: Box #2.034, Folder 34.2]

• Letter from Alden H. Emery, Executive Secretary, to Dr. Stanely P. Reimann, Institute for Cancer Research. RE: Acknowledges receipt of his letter. Explains why non-member speakers are charged. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from C. S. Fuller, Chairman, Committee on Publications, to Dr. M. Burton. RE: Thinks he has struck on a vulnerable point in the publications setup. [Filed under LP Science: American Chemical Society: Materials re: Committees and Awards, 1938-1950: Box #14.008 Folder # 8.18]
• Letter from Edward A. Jumpertz to LP RE: Requests LP's “The nature of the chemical bond and the structure of molecules and crystals”. Also states that he wants to keep in contact with LP about crystallography. [Letter from LP to Jumpertz April 27, 1949] [Filed under LP Correspondence: Box #192.15, file:(J: Correspondence, 1949)]
• Letter from Fredrick D. Rossini, Chief, Section on Thermochemistry and Hydrocarbons, to Milton Burton. RE: Thinks his letter raises some important questions. [Filed under LP Science: American Chemical Society: Materials re: Committees and Awards, 1938-1950: Box #14.008 Folder # 8.18]
• Letter from LP to Dr. T. Y. Cairns, DuPont experimental Station. RE: Thanks him for his letter. Informs him of the cost of traveling. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from LP to Prof. Edwin B. Wilson. RE: Feels strongly that the Academy should continue to increase in size. Has a poor impression of Shapiro's presidential address. [Filed under LP Science: National Academy of Sciences, 1945-1951: Box #14.020 Folder #20.3]
• Letter from LP to S. K. Sarkar telling his willingness to server as a member of the Board of Examiner of a thesis on physical chemistry in University of Delhi. [ reply to Sarkar March 30, 1949]
• Letter from Miss Inga Lucille Faller, Department of Chemistry, Northwestern University, to Dr. John G. Kirkwood, Caltech RE: responds to letter of April 15. Informs that application blanks were filled out and sent to the Dean of the Faculty and also that Dr. Klotz, Dr. Dole, and Dr. Summerbell are writing letters of qualification. Has also followed Kirkwood's suggestion to write to the U.S. Public Health Service and apply for a fellowship. [Letter from Kirkwood to Faller April 15, 1949] [Memo from LP to Corey April 27, 1949] [Filed under LP Biographical: Academia: Box 1.017, Folder 17.3]
• Manuscript Notes: “The Stability of S8" [Filed under LP Science: Manuscript Notes by Linus Pauling re: Chemical Bonds, 1944-1953: Box #3.005 Folder #5.16]
• Newspaper Clipping: “Hay Fever Research Papers Due”, Pasadena (California) Star-News, April 19, 1949. [Filed under LP Scrapbooks, 1946-1950: Box #6.005, Folder 5.34]

• Bill from Richfield Oil Company for $4.34 [LP Biographical: Business and Financial 4.059, folder 59.3]
• Bill from Union Oil Company of California for $33.84 [LP Biographical: Business and Financial 4.059, folder 59.3]
• Letter from Dr. Felix Bernstein, Triple Cities College, to LP RE: Inquires about the relationship between antigens and antibodies, stating that based on LP's theory, “radioactivated antigens should activate the contiguous antibody.” [Letter from LP to Bernstein May 12, 1949] [Filed under LP Correspondence: Box #37.16, file:(B: Correspondence 1949)]
• Letter from LP to Dennis Flanagan, Managing Editor, Scientific American, RE: States he appreciates their suggestion for an article about valence, but cannot commit as he doesn't know how busy he will be. [Letters from LP to Mr. Dennis Flanagan April 18, 1949, from Dennis Flanagan to LP April 25, 1949] [Filed under LP Correspondence: #374.9]
• Letter from LP to Dr. C. Lalor Burdick RE: Informs him that Monday, May 2, would be a good time for him to visit Cal Tech. [Letter from Burdick to LP April 15, 1949] [Filed under LP Correspondence: Box #37.16, file:(B: Correspondence 1949)]
• Letter from LP to Dr. E. L. Warrick, Mellon Institute. RE: Requests that they arrange a single room for him in Pittsburgh. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from LP to Mamie Olliver RE: states that either July 20, 21 or 22 would be fine for a visit. [Letters from Olliver to LP April 14, 1949, August 11, 1949] [Filed under LP Correspondence: Box #300.11, File: (O: Correspondence, 1949)]
• Letter from LP to Mrs. E. Bright Wilson, Jr., Phi Beta Kappa. RE: Informs her that he might be in Boston in June, and could sign the books then. Would like to know her plans for the coming year. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from LP to Reuben E. Wood, Department of Chemistry, The George Washington University RE: Thanks him for the letter and it was a pleasure to see him. [Letter from Reuben E. Wood to LP April 12, 1949] [Filed under LP Biographical: Political Issues: Ralph Spitzer: Academic Freedom and Passport Difficulties, 1942-1994: Box #2.034, Folder 34.2]
• Letter from W. A. Kirklin, Chairman, Division of Analytical and Micro Chemistry, to LP. RE: Invites him to be their guest and speaker at the dinner held during the week in Atlantic City. [Filed under LP Science: American Chemical Society: Correspondence, 1949-1950: Box #14.005 Folder #5.1]
• Letter from Walter C. Schumb, Massachusetts Institute of Technology, to Milton Burton. RE: Agrees with his opinions on the publications. [Filed under LP Science: American Chemical Society: Materials re: Committees and Awards, 1938-1950: Box #14.008 Folder # 8.18]
• Letter from William Seifriz, Botanical Laboratory, University of Pennsylvania, to LP RE: Asks about the specificity of metals for certain organic compounds or amino acids, and how this effects protoplasm and toxicity. [Letter from LP to Dr. William Seifriz May 18, 1949] [Filed under LP Correspondence: #361.5]
• Note from Prof. Arne Tiselius, Upsala University, to LP RE: Expresses great thanks for LP's assistance and hospitality during his U.S. trip. Recounts his favorite highlights. [Itinerary for Prof. and Mrs. Tiselius 4-49, letter from LP to Prof. Arne Tiselius May 30, 1949] [Filed under LP Correspondence: #407.5]
• Pamphlet, Correspondence, Press Release: “Are We Afraid of Freedom?”, A Statement from the Chairman of the Board of Trustees of the University of Chicago, April 20, 1949. [Filed under LP Biographical: Academic Freedom — General, 1944-1979: Box #2.039, Folder 39.6]
• Writes cheque to “Geo M Stanked. Yard work, hoses” $161.04 [LP Biographical: Business and Financial 4.074, folder 74.1, item 1]
• Writes cheque to “Income Tax Com. Sacramento” $176.04 [LP Biographical: Business and Financial 4.074, folder 74.1, item 1]
• Writes cheque to “Jean Brown. Catering” $5.94 [LP Biographical: Business and Financial 4.074, folder 74.1, item 1]

• Invitation to the Annual General Meeting of the American Philosophical Society. [Filed under LP Science: American Philosophical Society, 1936-1963, 1989, 1991: Box #14.011 Folder #11.2]
• Itinerary: American Philosophical Society April 21-23 (cancelled) [Filed under LP Travel Materials: 1932-1954: Box #1.001 Folder #1.7]
• Letter from Alden H. Emery, Executive Secretary, to Dr. C. W. Beadle, CIT. RE: Acknowledges receipt of his letter. Informs him why non-member invited speakers must be charged a registration fee. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from Alden H. Emery, Executive Secretary, to Dr. Fred E. Frey, Prof. Norris W. Rakestraw, and Dr. Ernest D. Wilson. RE: Informs them that they have been appointed to fill vacancies on the Committee on Constitution and Bylaws. [Filed under LP Science: American Chemical Society: Materials re: Committees and Awards, 1938-1950: Box #14.008 Folder # 8.16]
• Letter from C. H. Fisher, Philadelphia Section, to LP. RE: Appreciates the honor of having been selected as one to represent the ACS at the recent meetings of the American Academy of Political and Social Science. [Filed under LP Science: American Chemical Society: Correspondence, 1949-1950: Box #14.005 Folder #5.1]
• Letter from C. H. Fisher, to Alden H. Emery, Executive Secretary. RE: Attaches a copy of his letter to LP regarding the recent meeting of the American Academy of Political and Social Science. Suggests that the honor go someone besides him next year. [Filed under LP Science: American Chemical Society: Correspondence, 1949-1950: Box #14.005 Folder #5.1]
• Letter from F. A. Gunther, Chairman, San Gorgonio Section, to LP. RE: Expressed thanks for LP's visit and talk. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from LP to Dr. George A. Baitsell, Society of the Sigma Xi, Yale University, RE: Thanks Baitsell for sending him a copy of the book and states he will send any corrections he may find. [Letter from George A. Batisell to LP April 11, 1949] [Filed under LP Correspondence: #375.2]
• Letter from LP to George A. Baitnell thanking him for sending Science in Progress, Series VI. [Reply to Baitnell April 11, 1949]
• Pamphlet from the Annual General Meeting of the American Philosophical Society. [Filed under LP Science: American Philosophical Society, 1936-1963, 1989, 1991: Box #14.011 Folder #11.2]
• Photostatic negative of a Report of Qualitative Spectrographic Examination for Martin Engel by the Smith-Emery Company. Comments by John Herman across bottom. [Filed under LP Science: American Chemical Society: Materials re: Committees and Awards, 1938-1950: Box #14.008 Folder # 8.12]
• Writes cheque to “Manor Market. Cash” $25.00 [LP Biographical: Business and Financial 4.074, folder 74.1, item 1]

• Bill from FC Nash & Co for $1.63 [LP Biographical: Business and Financial 4.059, folder 59.3]
• Bill from William W. Taylor Jr., Co. $8.70 [LP Biographical: Business and Financial 4.059, folder 59.3]
• Invitation to the Annual General Meeting of the American Philosophical Society. [Filed under LP Science: American Philosophical Society, 1936-1963, 1989, 1991: Box #14.011 Folder #11.2]
• Letter from J. Fleischer to LP RE: Says he believes it is important for LP to know of support for his viewpoint on the ACS Academic Freedom case and has enclosed copies of two letters he wrote to the editor of Chemical and Engineering News. [Letter from J. Fleischer to Walter J. Murphy April 8, 1949] [Letter from J. Fleischer to Walter J. Murphy April 22, 1949] [Letter from LP to J. Fleischer April 29, 1949] [Filed under LP Biographical: Political Issues: Ralph Spitzer: Academic Freedom and Passport Difficulties, 1942-1994: Box #2.034, Folder 34.2]
• Letter from J. Fleischer to Walter J. Murphy, Editor, Chemical and Engineering News RE: States disappointment in decision stopping the printing of letters in response to the matter. Writes in response to his editorial which he interpreted as a warning against such things as taking into account political beliefs in employment of chemistry professors. Also discusses views of the ACS on the matter. [Letter from J. Fleischer to Walter J. Murphy April 8, 1949] [Letter from J. Fleischer to LP April 22, 1949] [Filed under LP Biographical: Political Issues: Ralph Spitzer: Academic Freedom and Passport Difficulties, 1942-1994: Box #2.034, Folder 34.2]
• Letter from LP to Alden H. Emery, Executive Secretary. RE: Apologizes for misinforming Dr. Kuhn. Accepts his suggestion about the donors. Requests that invitations be sent to the donors. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from LP to Alden H. Emery, Executive Secretary. RE: Suggests that they give some thought to the issue of having non-member registration fee for people who are invites to speak at ACS meetings. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from LP to Henry Allen Moe, Guggenheim Foundation. RE: Returns the book Aztec and Mayan Paper Makers. Doesn't think the book was very good. [Reply from Moe, April 25, 1949] [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1946-1952: Box #14.014 Folder #14.4]
• Letter from LP to W. H. Freeman, W. H. Freeman and Company RE: Agrees on the suggestions for the Malm-Frantz manual. [Memo from Freeman to LP April 6, 1949] [Filed under LP Correspondence: 439.7]
• Letter from Victor K. La Mer, Columbia University, to Milton Burton. RE: Will discuss the matter with the publisher of the Journal of Colloid Science. Suggests that this letter be forwarded to Noyes and LP. [Filed under LP Science: American Chemical Society: Materials re: Committees and Awards, 1938-1950: Box #14.008 Folder # 8.18]
• Memo from LP to Dr. David P. Shoemaker RE: Discusses the current determined structure of tellurium and suggests that Mr. Bergman take a good powder photograph to redetermine the structure. [Filed under LP Correspondence: #363.3]
• Pamphlet from the Annual General Meeting of the American Philosophical Society. [Filed under LP Science: American Philosophical Society, 1936-1963, 1989, 1991: Box #14.011 Folder #11.2]
• Writes cheque to “Bennett Travel Agency” [no amount] [LP Biographical: Business and Financial 4.074, folder 74.1, item 1]

• Invitation to the Annual General Meeting of the American Philosophical Society. [Filed under LP Science: American Philosophical Society, 1936-1963, 1989, 1991: Box #14.011 Folder #11.2]
• Letter from Herbert F. Schwarz to LP RE: Writes to LP to congratulate him on his statement of the case against Oregon State College and commends his defense of freedom. Urges LP to not let the matter rest. Says Strand's reply to LP's letter was an insult to the ACS and thus urges LP to bring ACS members to realize the injustice which has been committed. If LP wishes to use the letter, requests he doesn't use his name. [Letter from LP to Herbert F. Schwarz May 17, 1949] [Filed under LP Biographical: Political Issues: Ralph Spitzer: Academic Freedom and Passport Difficulties, 1942-1994: Box #2.034, Folder 34.2]
• Manuscript, Typescript, Notes: The Electric Dipole Moments of Molecules and the Principle of Electric Neutrality of Atoms [Filed under LP Manuscripts, 1949a.5]
• Pamphlet from the Annual General Meeting of the American Philosophical Society. [Filed under LP Science: American Philosophical Society, 1936-1963, 1989, 1991: Box #14.011 Folder #11.2]

• Itinerary: Leave Pasadena (cancelled) [Filed under LP Travel Materials: 1932-1954: Box #1.001 Folder #1.7]

• Bound Report: “Report of the Medical Advisory Committee to Dr. Vannevar Bush” [Filed under LP Science: Medical Advisory Committee, 1945: Box #15.009 Folder #15.1]
• Itinerary: National Academy (cancelled) [Filed under LP Travel Materials: 1932-1954: Box #1.001 Folder #1.7]
• Letter from Dennis Flanagan, Managing Editor, Scientific American, to LP RE: Informs him that he has found an Assistant, named Dean James F. Mathias. [Letters from LP to Mr. Dennis Flanagan April 20, 1949, May 16, 1949] [Filed under LP Correspondence: #374.9] also: [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1946-1952: Box #14.014 Folder #14.4]
• Letter from Dimitri R. Stein, American Representative, The Gmelin Institute, to LP. RE: Thanks him for sending him a transcript of his memorandum with regard to a possible assistance of the Rockefeller Foundation to the Gmelin Institute. [Filed under LP Science: American Chemical Society: Materials re: Committees and Awards, 1938-1950: Box #14.008 Folder #8.3]
• Letter from LP to Prof. F. O. Rice, Catholic University of America, RE: States he will not be coming to Washington because he is ill and will have to cancel the Thursday lecture. [Letters from LP to Prof. F. O. Rice April 6, 1949, April 28, 1949] [Filed under LP Correspondence: #340.14]
• Letter from Milton Burton, Division of Physical and Inorganic Chemistry, to LP. RE; Encloses a copy of a letter regarding the lack of space for publications in the field of physical chemistry. [Filed under LP Science: American Chemical Society: Materials re: Committees and Awards, 1938-1950: Box #14.008 Folder # 8.18]
• Letter from Ralph Spitzer to LP RE: Says he received a copy of a letter Dr. Christensen wrote to LP on March 11 and asks if LP can find out the specifics referred to in the letter regarding the “real problems concerning Ralph”. States Strand made a speech before the Eugene Rotary Club on March 27 and accuses Mr. LaVallee and him of trying to destroy the state. Ralph hopes to see LP when he is in LA. [Filed under LP Biographical: Political Issues: Ralph Spitzer: Academic Freedom and Passport Difficulties, 1942-1994: Box #2.034, Folder 34.2]
• Letter to LP from Henry Allen Moe, Guggenheim Foundation. RE: states that he and his wife were sad that LP and AHP weren't about to be in Philadelphia. Also states that von Hagen's appointment may be a weak one and that he has an assistant, James F. Mathias [Reply to LP, April 22, 1949] [LP's reply, April 28, 1949]
• Telegram from LP to Dr. George A. Baitsell, Society of Sigma Xi, RE: States he is ill and therefore cannot make it to the Sigma Xi meetings in the East. [Letter from George A. Baitsell to the Members of the Executive Committee March 15, 1949] [Filed under LP Correspondence: #375.2

• Enclosure with Letter from LP to Emmett April 26, 1949: A statement by Frank H. Dickey on some samples of treated silica gel, as detailed in his paper to be printed in the Proceedings of the National Academy of Sciences. [Filed under LP Correspondence: Box #109.1, file:(Emmett, Paul, 1937-1959, 1977-1982)]
• Letter from Alden H. Emery, Executive Secretary, to Committee to Initiate Plans for the 75th Anniversary Celebration of the ACS. RE: Attaches minutes of the meeting held on March 29th. [Filed under LP Science: American Chemical Society, Materials re: Committees and Awards, 1944-1949: Box #14.009 Folder #9.2]
• Letter from Alden H. Emery, Executive Secretary, to LP. RE: Thanks him for his prompt reply. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from LP to Alden H. Emery, Executive Secretary. RE: Encloses an from Michigan State Normal College for a delegate from ACS to attend the one hundredth anniversary of the college, and the inauguration of Elliot as the new president. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from LP to Alden H. Emery, Executive Secretary. RE: Encloses an invitation to the University of New Mexico to attend the inauguration of Thomas Popejoy as the President. Suggests a representative to be sent in his place. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from LP to Alden H. Emery, Executive Secretary. RE: Sends an invitation from Alabama Polytechnic Institute. Appoints a representative to attend in his place. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from LP to Dr. Ernest H. Volwiler, Abbott Laboratories. RE: Thanks him for his invitation. Will come if possible. [Filed under LP Science: American Chemical Society: Materials re: Committees and Awards, 1938-1950: Box #14.008 Folder # 8.18]
• Letter from LP to Dr. John C. Bailar, Jr., University of Illinois. RE: Thanks him for sending the invitation from the Alabama Polytechnic Institute. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from LP to Dr. Paul Emmet, Mellon Institute. [Letters from Emmett to LP April 5, 1949, May 3, 1949] [Filed under LP Correspondence: Box #109.1, file:(Emmett, Paul, 1937-1959, 1977-1982)]

  April 26, 1949

  Dr. Paul H. Emmett

  Mallon Institute of Industrial Research

  Pittsburgh 13, Pa.

  Dear Paul:

  I was pleased to hear from you, and to learn that you were interested in the specific silica gels that Mr. Dickey has been making. I have spoken to him about the matter and he has sent you samples of some of the gels. I attach a statement from Mr. Dickey about them.

  I suppose that the measurements that you would make with nitrogen would not show any significant differences among the samples - Dickey found that a dye unrelated to those he had used in the preparation - fluorescein, I think - showed the same adsorption on all of his samples. On the other hand, the powers of adsorption for hydrocarbon molecules might change with the length of the chain in a different way for different gels, in as much as it is a difference in the hydrocarbon side chain that represents the specificity of the gel.

  I have been a little under the weather recently. I had a minor operation a couple of weeks ago, and recovery has been slow. I had hoped to fly to Washington yesterday, in order that I might present my paper on sickle cell anemia before the National Academy on Wednesday. However, I found it necessary to give up this trip east.

  I shall look forward to seeing you in May when I come to Pittsburgh. I am planning to arrive in town in the morning, I believe, and probably to leave for Chicago on the night train, although I have not yet examined schedules. I have to be in Chicago the next day, when Debye is given the Willard Gibbs Medal. I shall look forward to seeing you then, and I hope that it will be possible for me also to say hello to Leila. Ava Helen and the children are all well.

  Cordially,

  Linus Pauling:W

• Letter from LP to Sol Haberman, International Society of Hematology, RE: Sends his application for the International Society of Hematology and his check for dues. Apologizes for the delay in response [Letters from Haberman to LP March 28, 1949, May 3, 1949] [Filed under LP Correspondence: Box #185.10, file:(I: Correspondence, 1949)]
• Letter from Marjorie J. Vold, University of Southern California, to LP. RE: Encloses a letter to Emery. [Filed under LP Science: American Chemical Society: Materials re: Committees and Awards, 1938-1950: Box #14.008 Folder #8.10]
• Letter from Marjorie Vold, Chairman, Women's Service Committee, to Alden H. Emery, Executive Secretary. RE: Informs him of who she would like appointed to the committee. Discusses plans for the awarding of the Carvan Award. Informs him of two projects they have undertaken. [Filed under LP Science: American Chemical Society: Materials re: Committees and Awards, 1938-1950: Box #14.008 Folder #8.10]
• Letter from W. Albert Noyes, Jr.. University of Rochester, to Milton Burton. RE: Discusses the issue regarding ACS publications. [Filed under LP Science: American Chemical Society: Materials re: Committees and Awards, 1938-1950: Box #14.008 Folder # 8.18]

• Itinerary: Sigma Xi in DC, PM luncheon; dinner; both at Cosmo Club (cancelled) [Filed under LP Travel Materials: 1932-1954: Box #1.001 Folder #1.7]
• Letter from Alden H. Emery, Executive Secretary, to Board of Directors. RE: Informs them of the meeting time and place. Informs them of agenda items. [Filed under LP Science: American Chemical Society: Correspondence, 1949-1950: Box #14.005 Folder #5.1]
• Letter from Gregory Duboff, Research Associate, Emery Tumor Group, to LP RE: Asks LP if he would be interested in joining the research project which he and Dr. Emery are conducting. Adds that Kaliss and Woolley are also working with antibodies. Includes a detailed outline of a protocol for a study on antibodies and cancer. (Notes in top margin: “Cavelti mixed strep toxin & mixed with homologous tissue & by injection produced auto-antibodies.” “Dan doesn't want to work with Duboff on this- doesn't think Duboff will do any work.”) [Letter from LP to Duboff May 18, 1949] [Filed under LP Correspondence: Box #98.14, file:(D: Correspondence, 1949)]
• Letter from LP to Bertram Washington. LP states that he is pleased to serve as a member of a National Citizens Committee in support of the Federal Employees Defense Committee. [Reply to Washington, April 12, 1949]
• Letter from LP to Dr. Henry Margenau, Sloane Physics Laboratory, Yale, RE: Accepts his nomination to the Research Coordinating Board of the Foundation for Integrated Research. [Letters from Margenau to LP March 9, 1949, May 27, 1949] [Filed under LP Correspondence: Box #122.8, file:(Foundation for Integrated Research)]
• Letter from LP to Dr. W. A. Kirklin, Chairman, Division of Analytical and Mirco-Chemistry. RE: Accepts the invitation to dinner, as long as it is not on Monday. Asks permission to postpone the decision about the title of the talk. [Filed under LP Science: American Chemical Society: Correspondence, 1949-1950: Box #14.005 Folder #5.1]
• Letter from LP to Edvard A. Jumpertz RE: Thanks him for his letter, states that he has had a copy of The Nature of the Chemical Bond sent and says he will give advice on Jumpertz's problem if needed. [Letters from Jumpertz to LP April 19, 1949, May 16, 1949] [Filed under LP Correspondence: Box #192.15, file:(J: Correspondence, 1949)]
• Letter from LP to H.W.Thompson, St. John's College, Oxford. RE: Is looking forward to seeing him between July 15-20 . Will send the $800 to him in care of the John Simon Guggenheim Memorial Foundation. Is glad to see his success in the reflecting microscope and states that the most interesting is the discovery of the difference in hemoglobin in patients with sickle cell anemia. Asks if they were supposed to pay part of his traveling expenses. [Reply to Thompson April 7, 1949] [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1946-1952: Box #14.014 Folder #14.4]
• Letter to Cornell University Press, from LP. RE: Asking them to send a copy of his book, The Nature of the Chemical Bond to a person in Germany. [Filed under: LP Manuscripts of Books, 1960b.5.2]
• Letter to LP from E.K. Wickman RE: Hopes Dr. John Sheridan obtains a Fellowship. [Letter from E. K. Wickman to LP April 26, 1949] [Filed under LP Correspondence: (S: Correspondence, 1949), #378.3]
• Memo from LP to R. B. Corey RE: mentions they have received a fellowship application from Inga Lucille Faller for a post-doctoral research fellowship in chemistry. Adds that Malcolm Dole says she is brilliant and scored a higher grade in her doctor's physical chemistry exam than any other candidate. States perhaps she would be worth considering for the protein project. [Letter from Faller to Kirkwood April 19, 1949] [Letter from Corey to Faller April 29, 1949] [Filed under LP Biographical: Academia: Box 1.017, Folder 17.3]
• Outline included with Duboff April 27, 1949. At the top of the first page is a note from LP: “I suggested using benzidine to couple ovalbumin to tumor tissue.” The first page outlines the method of preparation of two tumor types with six toxin types and how to actively immunize the tumors. The second page tells how to passively immunize the tumors and how to evaluate the effect of the antiserum on the tumors. The third page discusses how to transplant lymphosarcoma into rats.
• Typescript, Abstract, Correspondence, Program, Background Material: Sickle Cell Anemia, a Molecular Disease, National Academy of Sciences, Annual Meeting, Washington, D.C. [Pauling did not attend] [Filed under: LP Speeches, 1949s.6]

• Bill from Keefer's Garage to LP for $55.13 [LP Biographical: Business and Financial 4.059, folder 59.3]
• Itinerary: Catholic University, Washington DC (cancelled ) [Filed under LP Travel Materials: 1932-1954: Box #1.001 Folder #1.7]
• Letter from Geo Glocker, State University of Iowa, to Milton Burton. RE: Thanks him for his letter. Agrees with him in general. [Filed under LP Science: American Chemical Society: Materials re: Committees and Awards, 1938-1950: Box #14.008 Folder # 8.18]
• Letter from George R. D. Estcourt, Business Manager, W. H. Freeman and Company to LP RE: Writes in Freeman's absence to thank him for the comments on the manuscript and inform him that they received it yesterday. [Letter from LP to Freeman April 15, 1949] [Filed under LP Correspondence: 439.7]
• Letter from Herbert C. Brown, Professor of Inorganic Chemistry, Purdue University, to LP. RE: Informs him of a shift in subject matter in inorganic chemistry classes. Informs him of an upcoming symposium to discuss the matter. Asks questions of LP's recent chemistry book. Asks if he would be willing to present at the symposium. [Filed under LP Science: American Chemical Society: Correspondence, 1949-1950: Box #14.005 Folder #5.1]
• Letter from James H. Stack, Managing Editor, to LP. RE: Asks for an advance copy of his talk for May 19th. [Filed under LP Science: American Chemical Society: Correspondence, 1949-1950: Box #14.005 Folder #5.1]
• Letter from James J. Murphy, to LP. RE: Informs him of a situation requiring a new certificate for a fifty year member. Requests that he sign and return the enclosed certificate. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from L. E. Lloyd, Plastics Division, The Dow Chemical Company to LP RE: Voices his opinion in the matter of Ralph Spitzer's case and says he thinks A. L. Strand has done a real service to democracy and the freedom of education. He thinks the “principles of freedom of speech rightfully guarantee to those with an untrue or unsound story the right to tell it. They do not, however, require the public to finance all those who so wish to speak.” [Letter from LP to L. E. Lloyd May 5, 1949] [Filed under LP Biographical: Political Issues: Ralph Spitzer: Academic Freedom and Passport Difficulties, 1942-1994: Box #2.034, Folder 34.2]
• Letter from LP to Henry Allen Moe, Guggenheim Foundation. RE: Is glad Moe has an assistant. [Reply to Moe, April 25, 1949] [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1946-1952: Box #14.014 Folder #14.4]
• Letter from LP to Prof. F. O. Rice, Catholic University of America, RE: Apologizes for not being able to come to visit because he has not yet recovered from a minor operation he had a couple weeks ago. Hopes he will have a chance to give a lecture at the Catholic University of America at another time. [Letter from LP to Prof. F. O. Rice April 25, 1949] [Filed under LP Correspondence: #340.14]
• Letter from Walter J. Murphy, Editor, Chemical and Engineering News, to Milton Burton. RE: Thanks him for his note. Doesn't think he should become personally involved with the matter. Asks him to discuss it with Noyes. [Filed under LP Science: American Chemical Society: Materials re: Committees and Awards, 1938-1950: Box #14.008 Folder # 8.18]

• Bill from Simpson's. $14.91 [LP Biographical: Business and Financial 4.059, folder 59.3]
• Itinerary: New York: City College Chemistry Alumni Association, Bicentennial Science Lecture evening; noon lunch with John Weder, NYC Plaza Hotel; leave NY on an evening airplane (all cancelled) [Filed under LP Travel Materials: 1932-1954: Box #1.001 Folder #1.7]
• Letter from Arnold L. Lippert, Treasurer, Delaware Section, to LP. RE: Encloses a check to cover his traveling expenses. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from B. R. Stanerson, to LP. RE: Informs him that Jones is a good choice to represent the ACS a the Alabama Polytechnic Institute. Informs him that Professor Workman is not a member of ACS. Suggests Sherman as a representative for the University of New Mexico. [Filed under LP Science: American Chemical Society: Correspondence, 1949-1950: Box #14.005 Folder #5.1]
• Letter from B. R. Stanerson, to William A. Jones, Emory University. RE: Appoints him as the representative of the ACS at the Alabama Polytechnic Institute on May 12th. [Filed under LP Science: American Chemical Society: Correspondence, 1949-1950: Box #14.005 Folder #5.1]
• Letter from C. W. Beadle, CIT, to Alden H. Emery, Executive Secretary. RE: Thanks him for his letter. Two copies. [Filed under LP Science: American Chemical Society: Correspondence, 1948-1949: Box #14.004 Folder #4.2]
• Letter from Dr. Killeffer to LP, cc: Arthur Linz RE: Expresses hope that LP is feeling better and inquiring whether LP received his March 12 letter about his monograph on molybdenum. Also asks about the drawings they discussed, emphasizing that he has a deadline with the editor and publisher, and is satisfied that Climax [Molybdenum Company] has received an acknowledgement from the institute for the $10,000 grant for molybdenum research. [Letters from LP to Killeffer May 4, 1949, May 5, 1949] [Filed under LP Correspondence Box #71.2, file:(Climax Molybdenum Company, 1948-1949)]
• Letter from James M. Corwe, Executive Editor, Industrial and Engineering Chemistry, to LP RE: Returns LP's notes from the talk at the Division of Chemical Education luncheon in San Francisco. [Filed under LP Correspondence: Box #182.2, file:(Industrial and Engineering Chemistry - Correspondence)]
• Letter from LP to Dr. William J. Taylor, Cryogenic Laboratory, Ohio State University, RE: States he would like to see the abstract of his talk on the radial density function for crystals from x-ray intensity data for the American Physical Society in Washington. States that they have been using this method for years and is enclosing reprints of two papers that they use. [Letter from Dr. William J. Taylor to LP July 11, 1949] [Filed under LP Correspondence: #410.14]
• Letter from LP to J. Fleischer RE: Thanks for his letter and enclosed copies. Says it is also a disappointment to him that the editor of Chemical and Engineering News has discontinued publication of letters on these points. [Letter from J. Fleischer to LP April 22, 1949] [Filed under LP Biographical: Political Issues: Ralph Spitzer: Academic Freedom and Passport Difficulties, 1942-1994: Box #2.034, Folder 34.2]
• Letter from LP to Roger Cantarel RE: Thanks him for the letter and the reprint and asks him to give his regards to Professor Callais. [Letter from Cantarel to LP April 4, 1949] [Filed under LP Correspondence Box:#74.17, file:(C: Correspondence, 1949)]
• Letter from Robert B. Corey to Miss Inga Lucille Faller, Department of Chemistry, Northwestern University RE: writes concerning application for post-doctoral fellowship, to see if she would be interested in a research group working on the fundamental problems of protein structure. Gives details of the project and appointment. Asks her to let them know if she'd be interested in applying. [Memo from LP to Corey April 27, 1949] [Letter from Faller to Corey May 3, 1949] [Filed under LP Biographical: Academia: Box 1.017, Folder 17.3]
• Letter from Robert Livingston, University of Minnesota, to Milton Burton. RE: Finds his proposals interesting. Would be interested in any steps that result from this. [Filed under LP Science: American Chemical Society: Materials re: Committees and Awards, 1938-1950: Box #14.008 Folder # 8.18]
• Photostatic negative of a Assay Certificate, and a Laboratory Report, both signed by Fred B. Greusel. Comments across the bottom by John Herman. [Filed under LP Science: American Chemical Society: Materials re: Committees and Awards, 1938-1950: Box #14.008 Folder # 8.12]
• Sickle cell anemia, a molecular disease. Science 109 (April 1949): 443. Written by: Linus Pauling, Harvey A. Itano, S. J. Singer, and Ibert C. Wells. [Filed under: LP Publications, 1949p.8]
• Writes cheque to “George Jose” $8.58 [LP Biographical: Business and Financial 4.074, folder 74.1, item 1]
• Writes cheque to “Keeper's Garage. Fixing Zephyr” $55.13 [LP Biographical: Business and Financial 4.074, folder 74.1, item 1]
• Writes cheque to “Mira Loma H2O” $1.81 [LP Biographical: Business and Financial 4.074, folder 74.1, item 1]

• Itinerary: Arrive in Pasadena (cancelled) [Filed under LP Travel Materials: 1932-1954: Box #1.001 Folder #1.7]
• Letter from Dr. Carl V. Moore, Department of Internal Medicine, Washington University, to LP RE: States that he has heard of LP's work with the abnormal hemoglobin in sickle cells anemia. Requests information on the abnormality. [Letter from LP to Moore May 6, 1949] [Filed under LP Correspondence: Box #255.16, file:(M: Correspondence, 1949)]