Evclidis ... Elementorum geometricorum. lib. XV

This is the first complete assemblage of the Euclidean texts, with printings of both Campanus of Navara's and Bartolomeo Zamberti's versions. It also contains the new Preface by Philipp Melanchthon which in many copies, according to Thomas-Standford, was removed by the censor. This Herwagen edition contains all the major Euclidean texts: the Elements, Phaenomena, Catoptrica, Data, and the Opusculum Le Levi & Ponderoso, which appears here for the first time.

This edition contains the first printing of the Opusculum de Levi & Ponderoso. "No work by Euclid on mechanics is extant in Greek, nor is he credited with any mechanical works by ancient writers. According to Arabic sources, however, he wrote a Book on the Heavy and the Light, and when Hervagius was about to publish his 1537 edition there was brought to him a mutilated fragment, De levi et ponderoso, which he included as one of Euclid's works... It is the most precise exposition that we possess of the Aristotelian dynamics of freely moving bodies." --Dictionary of Scientific Biography, IV, p. 431.

Euclid's Elements of Geometry is the oldest mathematical textbook in the world still in common use today.

世上最早的數學課本，今天仍在普遍使用。