Aristotle, at one time tutor to Alexander the Great, was, among other things, the first observational biologist, and the founder of comparative anatomy. His views had a profound influence in determining the direction of biological thought, as well as scientific thought in general. The Augsburg 1479 edition is the first of ten printed editions of Aristotle's works in Latin issued in the 15th century, and like all of them, it represents selections rather than his complete works. The 1479 edition is ISTC No. ia00960000. Digital facsimile from the Bayerische Staatsbibliothek at this link.