Copy letter from Herbert Rix, to Dr Arthur Hill Hassall, 43 Holborn Viaduct, E.C. 'We have not yet received your abstract for which I wrote last week, and, as the time is now short, I must beg that you will let us have it at once. Quite a short abstract will do, but I shall be glad to get it into the printers hands. Yours truly, H Rix Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 9 November 1892