Copy letter from Herbert Rix, to Professor William Ramsey, Fellow of the Royal Society 'Dear Sir, Clay & Sons, by our arrangement with them, allow us a certain number of copies of the "Catalogue" for presentation. The margin over and above those institutions to which we are already pledged is exceedingly small (I think about half a dozen copies). I cannot, therefore, say whether the Catalogue Committee would add the Ecole des Mines to their list, but there would be nothing at all out of order in applying. Yours truly, H Rix Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 13 January 1896