Copy letter from Herbert Rix, to Professor Joseph John Thomson, [Fellow of the Royal Society] 'Dear Sir, Next Thursday (18th) is the last meeting this Session, so that if your MS. [manuscript] ^does^ not arrive before then, it cannot be read (or published) till next Session. Had you not better send it (registered) without waiting to finish the copying? It cannot be read even in title unless the MS. is in the house [whole sentence underlined]. Yours truly H Rix Asst Sec [Assistant Secretary]'. 13 June 1891