Documento 51-52 - Visit to the U.S.A.

E.51: Correspondence re meeting and lecture, programme, press cuttings, visas. 11 pp. typescript and MS version of lecture (another copy is at C.74). 3 pp. typescript of a lecture 'The Origin of Nuclear Fission', perhaps prepared for same trip.
E.52: Correspondence re visits and lectures at Berkeley, Dartmouth, Los Alamos, National Accelerator Laboratory, Princeton, University of Washington Seattle; and a little personal correspondence with friends in U.S.