Copy letter from Herbert Rix, to William Turner Thiselton-Dyer, Fellow of the Royal Society 'Dear Sir, Dr Foster wishes me to ask whether you can come to a sub-committee on Wednesday 25th at 4 p.m. to arrange the dinner table for the anniversary. This is the time that will suit him best. Kindly send you answer here. Yours truly Herbert Rix Asst Sec RS [Assistant Secretary, Royal Society]'. 16 November 1891