FRSH/B/220
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Pièce
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26 Mar. 1939
Fait partie de Papers of Otto Frisch
FRSH/B/219
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Pièce
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Feb.-May 1939
Fait partie de Papers of Otto Frisch
Carbon copies of six letters from Frisch to Nature, 7, 11 and 22 February, 6 March (two) and 4 May 1939 and one letter from Nature to Frisch, 10 February 1939. The letters of 6 March are represented by duplicates.