Letter, from William Henry Smyth to Sir John Herschel, dated at Crescent, Bedford Autograph letter signed by sender. Describes factors that led to C. P. Smyth's appointment to Cape. Uses rock crystal prism for double star observations. Continues observing John Frederick William Herschel's nebulae with equatorial clock. Approves of proposal for worldwide meteorological observations; will distribute brochures. 12 July 1835