Activity Listings
- Letter from Dept. Secretary to Margaret Williams RE: Replies that the only information they could give her about radium would be highly technical, suggests she go to her library and use its references, adds that Encyclopedia Brittanica has a long article that should be valuable. [Letter from Williams to LP April 25, 1940] [Filed under LP Correspondence: 443.8]
- Letter from the Secretary to LP, Chemistry Division to O.J. Backus RE: Sends the card of a testing laboratory, as Caltech does not perform such analyses. [Letter from Backus to LP April 22, 1940] [Filed under LP Correspondence: Box #37.7, file:(B: Correspondence, 1940)]
- White House East Entrance Card for AHP at 3:30. [Filed under AHP Assorted Invitations, Programs, and Flyers: Box #3.012, Folder #12.2]
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April
26, 1940
