Activity Listings
- Letter from William S. Klein to LP RE: Agrees with LP that his discussion of Balmer's equation shows it lacks the general significance of the Schrodinger wave equation. [LP's letter to Klein December 19, 1939] [Filed under LP Correspondence: Box #200, Folder #200.4]
- Minutes of the Executive Committee, American Association for the Advancement of Science, Columbus Meeting [Filed under LP Science: Box #14.001, Folder #1.2]
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