Hadley, J. Account of a catadioptrick telescope. S. 303-312. In: Philosophical transactions, Bd. 32, Lieferung 376. London, Royal Society, (1723). 4to (20,5:15 cm). Mit 2 (1 gefalt.) Kupfertafeln. S. (277)-316. - Vorgebunden: J. Pound. A letter to Dr. Jurin, Secr. R. S. concerning observations made with Mr. Hadley's reflecting telescope. S. 382-384. - J. Hadley. Observations on the satellites of Jupiter and Saturn, made with the same telescope. 385-390. In: Philosophical transactions, Bd. 32, Lieferung 378. London, Royal Society, (1723). 4to. Mit 2 gefalt. Kupfertafeln. S. (353)-390. Mod. Pp.

DSB VI, 6 (alle Beiträge); Poggendorff I, 987 (Hadleys Beiträge). - Erstdrucke. "Hadley was the first to develop the form of reflecting telescope introduced by Newton in 1668. By 1719 he had produced paraboloidal mirrors of speculum metal superior to any made by the London Master opticians. He then constructed two Newtonian reflectors ... He presented one of the Newtonian recflectors to the Royal society of London, where it evoked great interest" (DSB). Die gefaltete Tafel in Lieferung 376 zeigt das Teleskop. - Gebräunt, 1 Tafel in Lieferung 378 mit geringen Bildverlust angeschnitten.