Copy letter from Herbert Rix, to Professor Frederick Orpen Bower, [Fellow of the Royal Society] 'Dear Sir, Enclosed herewith I send you receipt for sixty pounds, and have altered your cheque to that amount. You will bear in mind that it will be necessary for you to present yourself on one of the two November meetings, or your election will become void. Yours truly Herbert Rix Asst Sec RS [Assistant Secretary, Royal Society]'. 13 October 1891