ARISTOTLE (384-322 B.C.). De Animalium generatione libri quinque cum Philiponi Commentariis. Venice: Joannes Antonius and Fratres de Sabio, February 1526. Folio (303 x 207 mm). Text opening printed in red and black, text printed in Greek with commentary surround. (Several leaves with lower outer margin slightly gnawed, a few with old repairs, some dampstaining and wrinkling.) Old vellum (endpapers renewed, some minor losses to joints, hinges starting, some soiling). Provenance: A few marginal notes in an early hand; John S. Eells, Jr. (blindstamp). A humanist edition, with commentary by John Philiponus, known as John the Grammarian or John of Alexandria. Adams A-1789; Wellcome p.190. [Bound with:] PHILIPONUS, John (ca 590 - ca 570). Contra Proclum de Mundi Aeternitate. Venice: Bartholomaei Casterzagensis [Bartolomeo Zanetti] and John Francis Trincavelli, 1535. Folio. Text printed in Greek; woodcut initials and head-pieces. (A few leaves with repairs to upper margin affecting a few letters, a few repairs to lower corners.) THE RARE EDITIO PRINCEPS of Philoiponus' influential scientific work in which he criticizes Proclus' belief in an external world. The work is one of the first published in Venice by Bartolomeo Zanetti from Casterzago, with his device on the title-page reportedly after Titian. Adams P-1060. Property from the Collection of Edward A. Quattrocchi