(Paris, L'Imprimerie Royale, 1732). 4to. Without wrappers. Extracted from "Mémoires de l'Academie des Sciences. Année 1730". Pp. 233-242.
First appearance of a main paper in analytical mechanics. Maupertuis gives a new treatment of the curves assumed by moving bodies in resistent media. This paper positioned him as a direct heir to the analytical mechanics program in France.
Order-nr.: 46588