RIVARD, (Dominique François) - Traité de la Sphère. [Suivi de :] Traité du calendrier. - 1743-1744

RIVARD, (Dominique François)
Traité de la Sphère. [Suivi de :] Traité du calendrier.
Jean Desaint et Charles Saillant, Paris, 1743-1744.

In-8, (20,5 x 13,3 cm), (2) ff., 156 pp., (1) f., 85 pp., bound. Full mottled calf, spine with gold-tooled raised bands, fillet in gilt framing the boards, gilt roulette on the edges, red edges. Contemporary binding. Head cap uncovered, tail cap partially uncovered, two small wormholes along the margins and some pale stains on the boards, some scuffing on the edges, a worn corner, a pierced corner.

Second edition of these two treatises by the mathematician Dominique-François Rivard (1697-1778). The whole is illustrated with 3 plates and several in-text tables.

As an educator, Rivard had many science books published for didactic purposes like these two treatises.