2 ALS and 4 TLS exchanged between AMT and IJG on the number of neurons in the brain. 25, 28, 31 July, 16, 18 Sept. 1948. The Sept. letters also refer to chess-playing machines. TS copies also catalogued as K/1/76b and K/1/77
Keywords: Good, Irving John (Jack); Turing, Sara
Provenance: received from Prof. I.J. Good in 1979, photocopied from originals in his possession
Copyright: Copyright © P. N. Furbank and I. J. Good. Reproduced with permission from I. J. Good.