Copy letter from Herbert Rix, to James Edward Henry Gordon, 11 Pall Mall, S.W. 'Dear Sir, The exhibit which you kindly offer for our forthcoming Soirée is accepted provisionally upon our electricians being able to provide the necessary current. I am writing to them upon this matter, and meanwhile, assuming that there will be no difficulty in this respect, I would ask you kindly to fill up and return to me the enclosed schedule. I am, yours truly, Herbert Rix Asst Sec RS [Assistant Secretary, Royal Society]'. 16 April 1891