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• Letter from Henry K. Benson to LP RE: Thanking LP for his letter of November 25, 1931. [LP Science Box 14.027, Folder 2]

• Newspaper clipping from the L. A. Times RE: LP and the Langmuir Prize [LP Scrapbooks 6.002.15]

• AHP writes cheque to: L. C. Denslow amount $40 [Filed under LP Biographical: Box #4.011, Folder #2]

• AHP writes cheque to: Athenaeum amount $10 [Filed under LP Biographical: Box #4.011, Folder #2]
• AHP writes cheque to: Benedict and Gingrich amount $12.40 [Filed under LP Biographical: Box #4.011, Folder #2]
• AHP writes cheque to: City of Pasadena amount $3.76 [Filed under LP Biographical: Box #4.011, Folder #2]
• AHP writes cheque to: City of Pasadena amount $4 [Filed under LP Biographical: Box #4.011, Folder #2]
• AHP writes cheque to: F. C. Nash Company amount $42.31 [Filed under LP Biographical: Box #4.011, Folder #2]
• AHP writes cheque to: Los Angeles Gas and Electric Corporation amount $8.34 [Filed under LP Biographical: Box #4.011, Folder #2]
• AHP writes cheque to: Paremelee-Dohrmann Company amount $7.37 [Filed under LP Biographical: Box #4.011, Folder #2]
• AHP writes cheque to: Pasadena Tuberculosis Association amount $1 [Filed under LP Biographical: Box #4.011, Folder #2]
• AHP writes cheque to: Rowley Electric amount $4 [Filed under LP Biographical: Box #4.011, Folder #2]
• AHP writes cheque to: Southern California Telephone Company amount $2.90 [Filed under LP Biographical: Box #4.011, Folder #2]
• AHP writes cheque to: William D. Crane amount $83.60 [Filed under LP Biographical: Box #4.011, Folder #2]

• AHP writes cheque to: American Association of University Professors (Joseph Mayor, Treasurer) amount $4 [Filed under LP Biographical: Box #4.011, Folder #2]
• AHP writes cheque to: Connecticut Mutual Life Insurance Company amount $14.43 [Filed under LP Biographical: Box #4.011, Folder #2]
• AHP writes cheque to: Dr. E. H. McMillan amount $5 [Filed under LP Biographical: Box #4.011, Folder #2]
• AHP writes cheque to: Golden State Company Ltd. amount $15.56 [Filed under LP Biographical: Box #4.011, Folder #2]
• AHP writes cheque to: J. U. Campbell amount $32 [Filed under LP Biographical: Box #4.011, Folder #2]
• AHP writes cheque to: Mrs. W. L. Spaulding amount $120 [Filed under LP Biographical: Box #4.011, Folder #2]

• AHP writes cheque to: Sears, Roebuck & Co. amount $1.58 [Filed under LP Biographical: Box #4.011, Folder #2]

• LP Research Notebooks, RNB 08 RE: Notes on experimental work with chalcopyrite to begin December 11, 1931 [Filed under LP Research Notebooks: Research Notebooks 8: 071]

• AHP writes cheque to: The Model Grocery Co. amount $6.95 [Filed under LP Biographical: Box #4.011, Folder #2]

• LP writes cheque to: Jordans, Inc. amount $21 [Filed under LP Biographical: Box #4.011, Folder #2]

• AHP writes cheque to: E. E. Martin amount $5.76 [Filed under LP Biographical: Box #4.011, Folder #2]
• LP writes cheque to: Grace Nicholson amount $35 [Filed under LP Biographical: Box #4.011, Folder #2]

• Letter from Arthur B. Lamb, Editor, Journal of the American Chemical Society to LP RE: Requests LP review enclosed manuscript by Dr. Smyth. [LP's reply to Lamb February 2, 1932] [LP Science Box 14.002, Folder 1]

• LP writes cheque to: Cash amount $25 [Filed under LP Biographical: Box #4.011, Folder #2]

• LP writes cheque to: Division of Motor Vehicles amount $3 [Filed under LP Biographical: Box #4.011, Folder #2]
• Letter from Maurice Huggins, Stanford to LP RE: Calculations on structure of Covellite [LP Science Box 5.001, Folder 8]