Letter, from Thomas Maclear to Sir John Herschel, dated at Royal Observatory Autograph letter signed by sender. Has asked Dr. Andrew Smith, Capt. J. E. Alexander, and their friends for Saturday; hopes John Frederick William Herschel can join them. Has recognized fifteen of the November cometary stars; they are in Harding's map with one exception. The Ephemeris will require a small correction. 24 May 1836