Referee's report by Hugh Longbourne Callendar, on a paper 'Some moisture relations of colloids - I. A comparative study of the rates of evaporation of water from wool, sand and clay' by E A Fisher Sectional committee: Physics Recommended for publication in Proceedings, although the layout of the paper should be modified. [Published in Proceedings of the Royal Society A, 1923]. Endorsed on verso as received 7 December 1922. December 1922