Correspondence re 1952 URSI meeting at Sydney, includes Ratcliffe's 'Report of the British Committee for Scientific Radio to Commission III on the Ionosphere and Wave Propagation'. Correspondents: Edward Appleton; D. C. Martin (Royal Society); Sydney Chapman.
File: URSI 1952 Sydney
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- ReferenceGB 133 JBA/CS7/54/2
- Dates of Creation1952-1953