BOSCOVICH (BOSCOVIC), ROGER JOSEPH (RUDJER J.). - GEOMETRICAL OPTICS AND THE RAINBOW.

Extrait d'une Lettre du P. Boscovich, Jésuite, Correspondant de l'Academie, écrite à M. de Mairan.

(Paris, Imprimerie Royale, 1760). 4to. Extract from "Mémoires de Mathematique et de Physique, Présentés à l'Academie des Sciences par divers Savans", Tome III. Pp. 321-325. A faint dampstain to inner margins.

First apperance of Boskovic's paper in which he explains how light is refracted and reflected in droplets of water, creating the coloured rainbow - he discusses the sphericity in connection with both refraction and reflexion of light and he comments on Newton's optics.

Order-nr.: 45083