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July
  • Photo: Linus and Ava Helen Pauling standing outside with their hands behind their backs. "Linus Pauling, age 38 and Ava Helen Pauling" "July, 1939, Madison, Wisconsin" "Taken by Mr. Link" Black and white print. [Ship #919] [LP Photo Box, 1939i.4]
  • Photo: Linus and Ava Helen Pauling standing outside. Linus with his arm around Ava Helen's waist. "July, 1939" "Madison, Wisconsin" "AHP & LP, 1939" Taken by Mr. Link, black and white print. [Ship #920] [LP Photo Box, 1939i.5]

July 1
  • AHP writes cheque to: Lola J. Cook amount $60 [Filed under LP Biographical: Box #4.015, Folder #2]
  • Letter from Arthur B. Lamb, Editor, Journal of the American Chemical Society RE: Requests LP's opinion on whether the enclosed manuscript entitled "Inversion of the Partition Function to Determine the Density of Energy States" by Dr. S. H. Bauer is better suited for the Journal of Chemical Physics. [Filed under LP Science: Box #14.002, Folder #2.4]
  • Letter from Arthur B. Lamb, Editor, Journal of the American Chemical Society to LP RE: Requests LP review the Communication to the Editor, entitled "The Dipole Moments of Monochlorogermane and Dichlorogermane" by Dr. Smyth to see if the subject is of interest to the Journal. [LP's reply to Lamb July 28, 1939] [Filed under LP Science: Box #14.002, Folder #2.4]

July 3
  • Note from E. Bright Wilson, Jr., Harvard University to LP RE: Thanking LP for the copy of The Nature of the Chemical Bond which he feels "will fill quite a need."Although he feels that there will be some objections to LP's interpretations, there is "an impressive array of empirical evidences on most points." He goes on to update LP on his lab activity. [Wilson's last letter to LP June 12, 1939; LP's reply to Wilson July 19, 1939] [Filed under LP Correspondence: Box #438, Folder #438.5]

July 6
  • Letter from Thornton C. Fry to LP RE: Encloses comments from Eckert on his method of computing Fourier series on IBMs and an estimate of the time to carry out such equations. [Fry's last letter to LP June 22, 1939; LP's reply to Fry July 19, 1939] [Filed under LP Correspondence: Box #368, Folder #368.5]

July 8
  • Letter from C. S. Lu to LP RE: Thanks LP very much for his letter sent in April and apologizes for his slow reply because of his illness. [Filed under LP Correspondence: Box #218, Folder #218.7]
  • Letter from G. Schwarzenbach to LP RE: thanking LP for the copy of the his book, The Nature of the Chemical Bond. [LP's reply: July 25, 1939] [Filed under LP Correspondence: Box #377, Folder #377.9]
  • Letter from G. Schwarzenbach, Universitat Zurich to LP RE: Thanking LP for the copy of The Nature of the Chemical Bond which he received from Cornell University Press, calling it "a work of art." [LP's reply to Schwarzenbach July 8, 1939] [Filed under LP Correspondence: Box #377, Folder #377.9]

July 10
  • Letter from L. A. Kimpton, Deep Springs to LP RE: Kimpton regrets there is no job for Linus Jr. to do at the ranch. [LP's letter to Kimpton June 1, 1939; LP's reply to Kimpton July 14, 1939] [Filed under LP Correspondence: Box #200, Folder #200.4]
  • Note from George Wheland, The University of Chicago, to LP RE: Wheland sends LP a discussion of the fractional bond order treatments of Penney and of Coulson that he had previously asked for. Congratulates LP on his book The Nature of the Chemical Bond, however regrets that he will be unable to use it for one of his classes. [Filed under LP Books: Box Unpb5, Folder Unpb5.9]

July 11
  • Letter from Harry H. Weinstock to LP RE: Inquires if LP knows of any academic openings for an organic chemist. [LP's reply to Weinstock August 2, 1939] [Filed under LP Correspondence: Box #443, Folder #443.7]
  • Note from Oliver Wulf to LP RE: Thanking LP for the complimentary copy of and praises his book, The Nature of the Chemical Bond. [LP's reply to Wulf July 21, 1939] [Filed under LP Correspondence: Box #443, Folder #443.7]

July 12
  • AHP writes cheque to: Walter Owndy amount $32 [Filed under LP Biographical: Box #4.015, Folder #2]
  • Letter from Lawrence O. Brockway, University of Michigan to LP RE: Brockway is sorry LP was unable to travel to Ann Arbor. He thinks that LP' s book is a very "convenient compilation of information." He encloses a check for $224 to repay what he owes LP. The camera in his lab is now assembled and he is beginning to use it. [LP's letter June 1, 1939; LP's reply July 17, 1939] [Filed under LP Correspondence: Box #31, Folder #31.11]
  • Letter from Prof. Dr. V. M. Goldschimdt, Oslo to LP RE: Thanking LP for the copy of The Nature of the Chemical Bond. [Filed under LP Correspondence: Box #136, Folder #136.19]

July 13
  • Letter from H. Lanigan to LP RE: Asks LP if it would be possible to visit the laboratory during Wednesday the 26th or Thursday the 27th. [Filed under: LP Correspondence: Box #230, Folder #230.5]
  • Letter from H. Lanigan, The British Cotton Industry Research Association to LP RE: Lanigan would like to visit LP's lab on July 26, 1939 or July 27, 1939 during his extended vacation in the states. [LP's reply to Lanigan July 17, 1939] [Filed under LP Correspondence: Box #230, Folder #230.5]
  • Letter from LP to Erik Heegaard RE: LP thanks him for arranging to send a set of silverware to him. [Heegaard's letter to LP June 26, 1939] [Filed under LP Correspondence: Box #165, Folder #165.4]

July 14

July 16
  • LP writes cheque to: Gotham Book Mart amount $13.65 [Filed under LP Biographical: Box #4.015, Folder #2]

July 17

July 18
  • Letter from Albert Schoenflies to LP RE: Schoenflies informs LP that the American Consul will consider giving him a visa outside of the quota if he obtains a position as an unpaid assistant at an Institute in the United States. [Filed under LP Correspondence: Box #358, Folder #358.1]
  • Letter from Donald K. Anderson to Gates and Crellin Laboratories RE: Anderson submits his personal theories concerning the determination of the location of atoms in crystalline structure. [LP's reply July 24, 1939] [Filed under LP Correspondence: Box #12, Folder #12.5]
  • Letter from F. R. Moulton, Permanent Secretary, American Association for the Advancement of Science to Members of the Council, LP RE: Modification in the method of nominations for the presidency is now effective. Ballot enclosed for nominations for President for 1940. [Filed under LP Science: Box #14.001, Folder #1.3]
  • Letter from Farrington Daniels, University of Wisconsin to LP RE: Encloses a discussion of Dr. Ogg's paper at the symposium on chemical kinetics for LP to look over before publication. [LP's reply to Daniels July 24, 1939] [Filed under LP Correspondence: Box #300, Folder #300.3]
  • Letter from Frank E. Ross, Treasury Department, to LP RE: Asks LP for advice regarding a problem in architectural concrete construction and requests LP's help in finding a treatment for lumber, which would cause a similar affect as does concrete on lumber. [LP's response: January 23, 1940] [Filed under LP Correspondence: Box #340, Folder #340.4]
  • Letter from L. A. Kimpton, Deep Springs Laboratories to LP RE: Kimpton would be delighted if the Paulings visited this summer, but may be gone working in L.A. when they plan to arrive. [LP's letter to Kimpton July 14, 1939; LP's reply to Kimpton August 19, 1939] [Filed under LP Correspondence: Box #200, Folder #200.4]

July 19

July 20
  • Letter from Arthur B. Lamb, Journal of the American Chemical Society to LP RE: Encloses a copy of Wrinch's rebuttal to the recent article LP and Niemann wrote against her work. [LP's reply August 1, 1939] [Filed under LP Correspondence: Box #438, Folder #438.12]
  • Letter from W. A. Patrick to LP RE: Patrick introduces Dr. N. Hackerman, Dr. H. B. Weisblatt, and Dr. L. H. Cohan who will be making a tour of some of the important universities and chemical industries of this country. [Filed under LP Correspondence: Box #312, Folder #312.4]
  • Letter from W. A. Patrick, Johns Hopkins University to LP RE: Introducing former students who are touring universities and chemical industries in hopes of finding permanent positions. [Filed under LP Correspondence: Box #312, Folder #312.4]

July 21
  • Letter from LP to Dr. J. W. Williams RE: LP looks forward to seeing your centrifuges and other new equipment when he next comes to Madison. [Williams' letter: July 17, 1939] [Filed under LP Correspondence: Box #438, Folder #438.1]
  • Letter from LP to Eldon P. Morrell, Vocational Rehabilitation, Territory of Hawaii RE: CIT does not have any organized classes in glass-blowing except basic procedure in elementary lab. instruction. [Morrell's letter to LP June 28, 1939] [Filed under: LP Correspondence: Box #255, Folder #255.6]
  • Letter from LP to J. W. Williams, University of Wisconsin to LP RE: LP looks forward to seeing the centrifuges next time he comes to Madison. Bernal recently visited his lab and increased enthusiasm for protein work. [Filed under LP Correspondence: Box #438, Folder #438.1]
  • Letter from LP to Mr. Eldon P. Morrell RE: LP informs Morrell that CIT does not have any organized classes in glass blowing, aside from a general short course of instruction of undergraduate students in elementary glass blowing. [Filed under: LP Correspondence: Box #255, Folder #255.6]
  • Letter from LP to Oliver Wulf RE: Thanking Wulf for the compliments on his book and hopes that he will have suggestions for a second edition. [Wulf's letter to LP July 11, 1939] [Filed under LP Correspondence: Box #443, Folder #443.7]
  • Letter from May D. Lemmon to the President of CIT, turned over to LP RE: Lemmon would like to know what field of chemistry has the most opportunity for her son, an undergrad. at Stanford interested in attending CIT for grad. school. [LP's reply to Lemmon July 24, 1939] [Filed under LP Correspondence: Box #230, Folder #230.5]
  • Letter from Prof. J. E. Lennard-Jones, Cambridge to LP RE: Thanking LP for the free copy of The Nature of the Chemical Bond. [Filed under LP Books: Box 1939b, Folder 1939b.2]
  • Theorell, Hugo. "Absorption Spectrum of Further Purified Cytochrome C." Science. Vol. 90, No. 2325: 67. [Filed under LP Science: Box #6.006, Folder #6.2]

July 24
  • AHP writes cheque to: A. F. Lewis amount $12.50 [Filed under LP Biographical: Box #4.015, Folder #2]
  • AHP writes cheque to: Arden Farms, Inc. Amount $15.96 [Filed under LP Biographical: Box #4.015, Folder #2]
  • AHP writes cheque to: Mira Loma Water Company amount $5.24 [Filed under LP Biographical: Box #4.015, Folder #2]
  • Letter from LP to Donald K. Anderson RE: LP believes that the vague description of electron diffraction theories that Anderson provides bear some relation to the present methods and are nothing new. [Anderson's letter July 18, 1939] [Filed under LP Correspondence: Box #12, Folder #12.5]
  • Letter from LP to Farrington Daniels, University of Wisconsin RE: LP returns the copy for the symposium with a few small changes. [Daniels' letter to LP July 18, 1939] [Filed under LP Correspondence: Box #300, Folder #300.3]
  • Letter from LP to May D. Lemmon RE: In response to her letter, LP states that there are many opportunities in the chemical field for her son and it depends on his interests and ability. [Lemmon's letter to LP July 21, 1939] [Filed under LP Correspondence: Box #230, Folder #230.5]
  • Letter from LP to Mrs. May D. Lemmon RE: LP informs Lemmon that it must be her son's decision as to what branch of chemistry he chooses to pursue. [Filed under: LP Correspondence: Box #230, Folder #230.5]
  • Letter from LP to P. Niggli, Switzerland RE: LP will be unable to travel to Europe this summer and therefore cannot participate in the International Physical Meeting. [Niggli's letter to LP June 30, 1939] [Filed under LP Correspondence: Box #287, Folder #287.6]
  • Letter from LP to Yun-Pu Liu, Associated Southwestern Universities, China RE: LP is glad to know that he is continuing with his work despite impending war. [Liu's letter to LP June 14, 1939] [Filed under LP Correspondence: Box #230, Folder #230.5]
  • Letter from LP's secretary to Mary A. Wheeler, Vassar College RE: Supply of requested reprint is exhausted, but most of the material can be found in The Nature of the Chemical Bond. [Wheeler's letter July 17, 1939] [Filed under LP Correspondence: Box #443, Folder #443.7]
  • Letter from N. P. Nies to LP RE: Thanking LP for notifying him of the position at U. of Alabama; he has sent his application to Dean Lloyd. [LP's letter to Nies July 19, 1939] [Filed under LP Correspondence: Box #287, Folder #287.6]
  • Letter from the Secretary to Warren Weaver, Director, The Natural Sciences-The Rockefeller Foundation to LP RE: Acknowledging receipt of LP's letter of July 14, 1939 as Dr. Weaver is out of the office. [Filed under LP Science: Box #14.038, Folder #38.7]

July 25

July 26
  • Letter from LP to A. A. Burgoyne, Jr. IBM, Inc. RE: Thanking him for discussing the Fourier calculator problems and notifying him that LP is preparing a detailed discussion of the proposed scheme for applying the IBM machines to their problem. [LP's letter to Fry July 19, 1939; LP's next letter to IBM July 27, 1939] [Filed under LP Correspondence: Box #368, Folder #368.5]
  • Letter from LP to E. C. Barrett, C. I. T. RE: Informing Barrett that Leo Brewer is working under Prof. H. J. Lucas for the summer on "An Investigation to Determine if a Walden Inversion Accompanies a Hoffman Degradation." [Filed under LP Biographical: Box #1.029, Folder #29.1]
  • Letter from LP to E. C. Barrett, C. I. T. RE: Informing Barrett that Lloyd W. Merryfield is working under Prof. H. J. Lucas for the summer on "A Study of the Rate of Hydrolysis of Mesityl Oxide in Water and Mixtures of Water and Dioxane as Catalyzed by Acids." [Filed under LP Biographical: Box #1.029, Folder #29.1]
  • Letter from LP to E. C. Barrett, Comptroller, C. I. T. RE: Notifying Barrett that Erwin Baumgarten is working under Dr. Haagen-Smit for the summer on "The Excystment Factors of Colpoda." [Filed under LP Biographical: Box #1.029, Folder #29.1]
  • Letter from William Lloyd Evans, The Ohio Academy of Science to LP RE: Invites LP to give a lecture during the Semi-Centennial Meeting of the Academy during May 1940. [LP's reply August 1, 1939] [Filed under LP Correspondence: Box #110, Folder #110.3]
  • Letter from Wilson Baker, The Dyson Perrins Laboratory to LP RE: Thanking LP for the free copy of The Nature of the Chemical Bond. [Filed under LP Books: Box 1939b, Folder 1939b.2]

July 27
  • Letter from J. Norton Wilson to LP RE: Requesting that LP allow him to defer his return to Pasadena until Aug. 15 because of travel delays. [LP's reply to Wilson July 31, 1939] [Filed under LP Correspondence: Box #443, Folder #443.7]
  • Letter from Joe Mayer to LP RE: Mayer encloses copy of review of The Nature of the Chemical Bond which he wrote for a journal of the American Institute of Physics. He thinks the book is excellent. [LP's reply August 2, 1939] [Filed under LP Books: Box 1939b, Folder 1939b.2]
  • Letter from LP to A. A. Burgoyne, Jr., IBM, Inc. RE: Enclosing proposal for use of punch-card (IBM) method in connection with LP's work. [LP's last letter to IBM July 26, 1939; LP's next letter to Stewart August 9, 1939] [Filed under LP Correspondence: Box #368, Folder #368.5]

July 28

July 29
  • Letter from LP to Arthur B. Lamb, Editor, Journal of the American Chemical Society RE: LP recommends that the paper by Syer and Davenport on "The Densities, Surface Tensions and Viscosities of Cis and Trans Decahydronaphthalene between -30 and 180 C" be not accepted for publication in the Journal. [Filed under LP Science: Box #14.002, Folder #2.4]

July 31