| Description | Correspondence between Guido Pontecorvo and Penrose, consisting of 3 letters, regarding Penrose's receipt of a statement by Sturtevant for distribution, and arrangements for the Genetical Society Committee on the Genetical Effects of Radiation. Also includes a letter from Charlotte Auerbach to Pontecorvo asking for a copy of Sturtevant's paper, and two letters between Peo Koller and Pontecorvo regarding co-ordination of committees working of the genetic effects of radiation. |