Encloses certificate nominating [DeWitt] Clinton for FMLS; [David] Hosack also wants him to be a fellow or foreign member of the Royal Society; hopes to be at Linnen Society meeting of 5 May but if there is any chance of Clinton being rejected would prefer he is not proposed.

Cannot justify prison for [Thomas] Marsham when the Linnean Society is "so highly indebted to his assistance". His own "private thoughts & speculations" on Marsham's character and financial history, asks for confirmation from Macleay.