Copy letter from Herbert Rix, to Sir Henry Enfield Roscoe, Fellow of the Royal Society On inspecting Dr [Julius] Dreschfeld's certificate Rix finds Roscoe has not signed it and therefore in accordance with Statute, Roscoe can not have it re-suspended. Any of the following gentlemen who have signed it can order its re-suspension; Professor Burdon Sanderson, Professor [Arthur] Schuster, Professor [David] Ferrier, Professor Victor Horsely and Professor Charles Smart Roy. 16 January 1891