Copy letter from C R [Charles Richard] Weld, the Assistant Secretary of the Royal Society; to M Macann In responses to the request by Macann to have his paper back, states all papers are communicated and read by the Royal Society become its property, and are retained by it in all cases. Explains however, that there will be no objections to Macann making a copy of it. [See MS/426/337] 24 July 1848