[Addition to Mary Baldwin's letter.] Health of JH's uncle. Travels through volcanic country of Vivarais. Asks CH to purchase for JH 10 copies of the first volume of William Herschel's works, recently translated into German. Sent to CH six copies of JH's 'Account of a Series of Observations Made with a 20-feet Reflecting Telescope' (1826) via Mr. Golterman, and six copies of JH's 'On the Parallax of the Fixed Stars' (1826) via Capt. Müller. James South received Copley Medal this year. Asks about comet near sun on 18 Nov.