Copy letter from Herbert Rix, to Dr William James Russell, Fellow of the Royal Society 'Dear Sir, You are mistaken in supposing that the receipt for his annual contribution was not sent to Mr Osler: it was sent immediately upon receipt of your cheque on May 2nd. My question, which you have you kindly answered, had to do with a query of the bankers, not with the sending of receipts. I am, yours truly, Herbert Rix Asst Sec RS [Assistant Secretary, Royal Society]'. 21 May 1891