Copy letter from John Evans, to Bernard Quaritch 'Dear Sir, In reply to your letter of the 4th inst. [instant] I beg to inform you that the Council has fixed the selling price of Lendenfeld's Monograph of the Horny Sponges at 21/- and that you can have any number of copies that you may require at 14/ nett in cloth boards - Acct [Account] to be settled every six months. Yours very faithfully, John Evans Treas. R.S. [Treasurer, Royal Society]'. 11 December 1893