Letter from Howard Walter Florey to A C Ritchie, Pathology Department, McGill University, Montreal Expects to be in Montreal at Commonwealth Universities Congress from 1-5 September - expects to arrive in Montreal on 22 August - asks if Ritchie could suggest anywhere he might spend holiday before opening of the Congress - comments on this - thanks for reprint of paper with McMillan - will be sending reprint of paper on endothelium soon. 22 January 1958