Copy letter from Herbert Rix, to Spencer Pickering, Fellow of the Royal Society, Harpenden, Hertfordshire 'Dear Sir, We do not send out proofs of the paper, except to the author. They can only be obtained by attending the meetings. The printers (Harrison & Sons, 45 St Martins Lane) send a weekly card of the papers to be read, to any F.R.S. [Fellow of the Royal Society] who applies to have it sent. They make no charge. Send them your name & address. Yours truly Herbert Rix Asst Sec RS [Assistant Secretary, Royal Society]'. 2 March 1891