Copy letter from Herbert Rix, to Professor Thomas Henry Huxley, Fellow of the Royal Society 'Dear Sir, Will you have the goodness to sign (if you approve) the enclosed memorial, placing your name under that of Sir Joseph Hooker as one of the past Presidents. Return the document to me at your earliest convenience. I am, yours truly, Herbert Rix Asst. Sec. [Assistant Secretary]'. 2 April 1891