Note 31 — William Herschel. (continued 2)

James Short, F.R.S. (1710-1768), and John Dollond, F.R.S. (1706-1761), were the most celebrated makers of telescopes of their day. The six-foot Newtonian reflectors of Short (aperture 9.4 inches), and the forty-six-inch achromatics of Dollond (aperture 3.6 inches), were highly esteemed. The Royal Observatory of Greenwich possessed, in 1765, one of each class. In a comparative trial of Short's telescope, at Greenwich, and one of Herschel's first telescopes, the latter was adjudged greatly superior.