Copy letter from Herbert Rix, to the Treasurer, College of Physicians 'Dear Sir, Croonian Lecture [underlined] May I venture to ask that you will pay to our Treasurer as soon as possible the share of the Rent from the Estate at Lambeth Hill which is due to the Royal Society, & which has been owing now for several months. Yours truly Herbert Rix Asst Sec RS [Assistant Secretary, Royal Society]'. 21 May 1891