Copy letter from Robert William Frederick Harrison, to to John H Grindley, The Owens College, Manchester With reference to Grindley's paper on the thermo-dynamic properties of superheated steam, the reading of this paper was postponed at Grindley's request, until after the long vacation. Asks for a convenient date for the paper to be read and encloses a card of meetings herewith [not attached]. 3 January 1900