On the Heavens - By Aristotle, divided into four sections.
Rhetoric - Includes a hypertext version of Rhys Roberts' translation of Aristotle's Rhetoric, complete with a Bekker Index for the original Greek text.
The History of Animals by Aristotle - Aristotle's zoological natural history book, Historia Animalium, which describes various species and their anatomies including fish, shellfish, and other animals. Translation by D'Arcy Wentworth Thompson.