Letter, from Sir John Herschel to Richard Sheepshanks, dated at Collingwood Autograph letter signed by sender. Likes Richard Sheepshanks's the Royal Astronomical Society associate list. Must give the Americans a year or two more before it can be adequately ascertained who their top astronomers are. Sends a letter John Frederick William Herschel received from John Lubbock, who wants the opportunity in January to present new methods in perturbation theory. Responds to Richard Sheepshanks on the means of the Royal Astronomical Society recognizing significant contributions to astronomy. 29 November 1847