Copy letter from Robert William Frederick Harrison to Professor H [Hugh] L [Longbourne] Callendar FRS Replying to Callendar's letter Harrison writes that he has little doubt that he shall be able to obtain a card of invitations for Callendar's brother and Mrs Steward for the Soiree, but must ask the President's authority first. If Bedford's paper is to come again before the Physics Committee Harrison supposes that there must be a meeting before the July Council and if Callendar concurs can he suggest two of three days that will be convenient for him. 8 June 1911