Letter, from William Henry Smyth to Sir John Herschel, dated at Crescent, Bedford Autograph letter signed by sender. John Frederick William Herschel letter on Gamma Virginis read at the Royal Astronomical Society meeting. Niccolo Cacciatore appointed to new position at Palermo Observatory, where he plans to sell the Almanack. Many the Royal Astronomical Society members experimenting with telescopic lenses. 23 July 1836