LEIBNITZ Gottfried Wilhelm & BERNOULLI Johan. Virorum Celeberr. Got. Gul. Leibnitii et Johan Bernoulli Commercium Philosophicum et Mathematicum. Tomus Primus, ab Anno 1694 ad Annum 1699 - Tomus Secundus, ab Anno 1700 ad Annum 1716. Lausanne et Génève, Marc-Michel Bousquet, 1745.

2 volls. 4to, mm. 250 x 190. Contemporary full vellum binding, titles on labels at the spine. Pp. [4] XXVIII, 484, with XV folded copper plates out text; pp. [2], 492, with XXIII folded copper plates out text. Printer’s device on title pages, Variante A SBN. Stamp of extinct library on title page, slight foxing fine copy.

First edition of this famous epistle exchange between the two great mathematicians, important especially for discussing the priority of discovery of differential calculus. Babson, p. 96, n. 196: "Important for containing the evidence, as embodied in the correspondence between Leibnitz and Jean Bernoulli, on the question of the rival claims to priority in the invention of the calculus, between Newton and Leibnitz. It was the only serious claim published in Leibnitz's favor... However little the merits of Leibnitz's claim may be, as its origination [although it is now generally achnowledged that its invention was an indipendent one], there can be no doubt as the superiority of his notation to Newton's fluxional one...". Gray, n. 259; Ravier, 427; Zeitlinger. n. 2532.