"Theory of Color of Organic Substances" Page 1. June 26, 1939
"Theory of Color of Organic Substances" June 26, 1939. Page 1  Larger Images / More Information. 10 pp.

Activity Listings

  • Letter from Marle- Geldern to LP RE: She reports to LP that it does seem likely that Schoenflies and the family will be able to come directly to the U. S, instead they may be able to go to Guatemala and then from there to the U. S. [Filed under LP Correspondence: Box #358, Folder #358.1]
  • Letter from P. Niggli, Switzerland to LP RE: Thanking LP for his promised participation at the international meeting in Switzerland. [LP's reply to Niggli July 24, 1939] [Filed under LP Correspondence: Box #287, Folder #287.6]