Activity Listings
- AHP writes cheque to: Katharine Putnam Crane amount $85 [Filed under LP Biographical: Box #4.014, Folder #1]
- AHP writes cheque to: Polytechnic Elementary School amount $111 [Filed under LP Biographical: Box #4.014, Folder #1]
- Letter to LP from Aaron M. Altschul, University of Chicago, RE: discusses his work with the Tswett column and periodicity and is anxious to achieve periodicity with the least number of components in the system. Asks LP if he is interested in this type of work and offers his assistance and training in any way necessary. [Filed Under LP Correspondence: A: Correspondence, Box #12.3]
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