Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Hugh Longbourne] Callendar, Chairman of the Physics and Chemistry Committee and FRS Reminds Professor [Hugh Longbourne] Callendar that on the 29th of June he reported to him the receipt of a paper by Mr. G. [George] W. [Walker] Walker, 'Surface reflection of earth-quake waves', estimated to print at thirty pages, and that on the same day he suggested that Mr. [William Robert] Bousfield's paper, 'Special heat of aqueous solutions', should go to Dr. [John Allen] Harker as a second referee. Expresses concern that, having heard nothing in reply from Professor Callendar, either his letter or Professor Callendar's reply have gone astray. 12 July 1917