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 Refers to a paper by W. [William] R. [Robert] Bousfield, 'The critical hydration pressure of solid salts'. Encloses Professor S. [Samuel] W. [Walter] J. [Johnson] Smith's report on Bousfield's paper [not enclosed]. Asks Professor [Hugh Longbourne] Callendar what further action should be taken. 26 July 1917