Copy letter, from James South to Sir John Herschel, dated at Observatory, Kensington Contemporary copy in sender's hand, partly signed by sender, partly signed with sender's name by an amanuensis. Would like John Frederick William Herschel's permission to make public John Frederick William Herschel's letter of 1826-11-14 in defence of the conduct of the late Humphry Davy. 11 October 1864