Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to the Director, National Physical Laboratory Requests data for inclusion in the Report of the Council of the Royal Society. Asks for a short general statement of progress and more significant matters the Council have had to deal with in the past year. [During 1919 the Directorship of the National Physical Laboratory passed from Sir Richard Tetley Glazebrook, FRS to Sir Joseph Ernest Petavel, FRS]. 30 September 1919