Copy letter from Herbert Rix, to Professor Edward Albert Schafer, Fellow of the Royal Society 'Dear Sir, Herewith enclosed proofs of your corrected blocks. You will see a rub of the alteration up in the corner of each proof. I think there is nothing now to prevent your finishing corrections and returning the text. Yours truly, Herbert Rix Asst Sec [Assistant Secretary, Royal Society]'. 9 December 1887