Mathematical Tables Committee - The 300's: Royal Society Depository of Unpublished Mathematical Tables A collection of five general correspondence files covering the period 1950-1962; File I - 20 December 1950 - 31 March 1953 File II - 1 April 1953 - 1 September 1954 File III - September 1954 - Decemer 1955 File IV - 1 January 1956 - 28 March 1958 File V - March 1958 - December 1962 1950-1962