Note 2 — BOOK IV. THE PHYSICAL PERIOD
Reading edition
Such as The World of Comets, by A. Guillemin; History of Comets, by G. R. Hind, London, 1859; Theatrum Cometicum, by S. de Lubienietz, 1667; Cometographie, by Pingré, Paris, 1783; Donati’s Comet, by Bond.