Copy letter from Robert William Frederick Harrison, to Professor William Schlich, Fellow of the Royal Society 'Dear Sir, I am directed to ask if you would be so good as to write, for the Proceedings [of the Royal Society], an obituary notice of Sir Dietrich Brandis, whose death was reported to the President and Council at their meeting last week? I am, faithfully yours, Robt [Robert] Harrison'. 18 June 1907