Copy letter from Robert William Frederick Harrison, to Dr Richard Tetley Glazebrook, Fellow of the Royal Society, Bushy House, Teddington, S.W. 'Dear Dr Glazebrook, Thanks for your note. I had already sent Mr Balfour a copy of Lord Rayleigh's Memorandum, at the request of the latter, and will now repeat what you say about publication. Believe me, very truly yours, Robt [Robert] Harrison'. 25 May 1906