75/2245 's-Gravesande, W.J. Physices elementa mathematica, experimentis confirmata. Sive Introductio ad Philosophiam Newtonianam. Leyden, J.A. Langerak and J. and H. Verbeek, 1742, 3rd enl. ed., 2 vols., (4),LXXXVI,(2),572; (2),573-1073,(43)p., 127 fold. engr. plates, later (late 19th cent.). unif. marbled calf w. mor. letterpiece on spine, 4to.

- Sl. foxed almost throughout; occas. sl. yellowed; both vols. bookplate on upper pastedown. Leather over backstrips dry and sl. worn; corners rubbed; letterpiece of vol. 1 dam.

= Plate 113 bound between plates 92 and 94. Originally publ. in 1720-1725. Bierens de Haan 1806; cf. Honeyman Coll. IV, 1541 (1st ed.); Poggendorff I, p.944. DSB V, p.510ff: "(...) The scientific reputation of 's Gravesande is enshrined in this book, which he constantly corrected and amplified in later editions. (...) his Mathematical Elements of Physics [the English translation published in 1720-1721], was easily the most influential book of its kind, at least before 1750. (...) The strength of his exposition was in his perfection of the method of justifying scientific truths either by self-evidence or by appeal to experimental verification in the manner already begun by Keill and Desaguliers, perfected by him through the design of many new instruments constructed by the instrument maker Jan van Musschenbroek (...)." Many of these instruments are illustrated on the plates. SEE ILLUSTRATION PLATE XCV.