Letter, from John R. Hind to Sir John Herschel, dated at 22 Grove Rd., St. John's Wood Autograph letter signed by sender. Has found another planet [Fortuna]; gives readings. Finds that the famous eclipse of Thales took place in 585 B.C., not 610 B.C., as stated by Francis Baily and Mr. Altmann. 22 August 1852