Letter, from Davies Gilbert to Sir John Herschel, dated at 45 Bridge St. Autograph letter signed by sender. Regrets the Royal Society [of London] is to lose John Frederick William Herschel's services. Eilhard Mitscherlich has been nominated for a medal on John Frederick William Herschel's recommendation; can John Frederick William Herschel give Davies Gilbert some details of Mitscherlich's discoveries? 20 November 1829