On the Parts of Animals is at the heart and soul of Aristotle's scientific investigation of animals. It not only contains the results of his investigation of why different kinds of animals have the parts that they do; it also opens with a book devoted to laying the philosophical stones of the entire biological enterprise. Those philosophical foundations, in turn, reflect and build on Aristotle's theory of knowledge, as found in the Analytics, and
his metaphysics and natural philosophy, as found in the Metaphysics, Physics, and De Anima. Whether one is interested in Aristotle the philosopher, or Aristotle the biologist, the De Partibus Animalium has a great deal to offer.
The translation of the entire four books, with commentary, gives the reader an opportunity to judge the integrity of Aristotle's zoological practice in books II-IV, in light of the philosophical recommendations for such a study presented in book I. The translation aims to reflect the fine details of Aristotle's reasoning. The commentary gives line-by-line clarification of individual passages while at the same time providing an overall interpretation of Aristotle's purposes and methods.

Metaphysics Books Z and H

by Aristotle

Published 28 April 1994
The books translated in this volume are seventh and eighth in the traditional ordering of Aristotle's Metaphysics. They are central to Aristotle's metaphysical system: in them he discusses the nature of perceptible 'substance' or reality. In particular, he compares the claims of matter and of form to be the basic reality of things, and he frequently contrasts his own view of form with the Platonic view. Several other topics are treated which are of
central importance to his metaphysics, e.g. the notions of essence and definition, the status of universals, and the concept of a unity.

David Bostock provides an authoritative guide to these difficult and important books, assuming no knowledge of Greek on the part of the reader. He offers a clear new translation that follows the original closely, and a thorough and careful philosophical commentary.


Physics Books III and IV

by Aristotle

Published 7 July 1983
A new translation of Aristotle's classic work on the natural sciences.