This volume contains these works written by, or attributed to, Aristotle: • The Parts of Animals. • The Progressive Motion of Animals. • The Problems. • On Indivisible Lines. It also includes Taylor’s treatise On the True Elements of Arithmetic of Infinites, although this is in rather faint facsimile reproduction. This same work of Taylor was reinput and printed in the modern typeface in volume XXX of the Thomas Taylor Series, The Theoretic Arithmetic.