Copy letter from Robert William Frederick Harrison, to Dr Augustus Desire Waller, Fellow of the Royal Society 'Dear Dr Waller, The Chairman of the Soirée Committee has asked me to say that he will be very glad to see you at a meeting of the Exhibits sub-committee which is to be held here next Monday afternoon, at 3 o'clock. Believe me, very truly yours, Robt [Robert] Harrison Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 15 March 1904