Blue exercise-book of notes taken on journey to Canada and USA, September 1952.

Includes an account of preliminary talks with Professor Watson about the St. Lawrence Seaway project (see MS. Eng. misc. b. 259/C.37 and MS. Eng. misc. b. 259/C.38), of discussions and people met at the A.C.M. Conference, and of Strachey's visits to firms and universities in the USA to see work in progress on computers, with his views on the various methods, programs, costings, etc. of Harvard Mark IV, RCA Bizmac, and UNIVAC machines.