Short notes and correspondence re Blackett's service at Imperial College Correspondence re conferment to Blackett of title of 'Professor Emeritus of Physics'. 1965 Correspondence re Blackett's appointment to Senior Research Fellowship. October 1965-September 1968 Correspondence re Blackett's resignation from boards and committees on retirement from the College. 1965 Correspondence re Blackett's election to Fellowship of Imperial College. 1967 Correspondence re renewal of Blackett's appointment as Senior Research Fellow, October 1968-September 1971. 1968 Correspondents include: Clifford Butler, Michael Davies, Sir Patrick Linstead, Sir Douglas Logan, William Penney (Baron Penney of East Hendred), Sir Owen Saunders and Roger Sherfield (Baron Sherfield) 1965-1968