Darwin-Wallace commemorative medal, Linnean Society of London, and other material Comprising: Darwin-Wallace commemorative medal, Linnean Society of London, 1958 Certificate of election to the USSR Academy of Sciences, 1959 The presentation was made by the Soviet Ambassador at an ordinary meeting of the Royal Society For Watson's election see A.19 Trusteeship of British Museum, 1963 Letter of thanks at end of period of service. 1958-1963