Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to [Alfred Seabold Eli] Ackermann, Esq. Sends a clipping from a copy of the 1911 Soiree Programme, which Towle believes to be the exhibit [Alfred Seabold Eli] Ackermann is after. This is an exhibit by Prof. [Henry Edward] Armstrong, [The action of stimulants [hormones] in promoting enzymic activity] and the only other similar one is when Mr. Gould boiled some cabbage to make musical sounds. 23 January 1931