| Description | Correspondence re arrangements for the tercentenary celebrations in 1942; proof copies for 'Proceedings of the Royal Society' of lectures by Andrade, Jeans and Rayleigh given at the 1942 Anniversary meeting, and cutting from 'Country Life', 25 December 1942, re Woolsthorpe Manor; correspondence including re purchase of Woolsthorpe Manor, purchase of Newton's Library, presentation of a first edition of the 'Principia' to the Academy of Sciences of the USSR (with photographs of the volume), grafts from the Newton apple tree and in loan of original letter from Newton to Dr John North; correspondence and associated papers re postponed celebrations held in 1946, including calendar of events, list of delegates, and memoir by a Russian delegate, progress report on Newton Letters project, purchase of Newton's notebook 1659-1661,and the Isaac Newton exhibition 1951 |