On the Variation of Species, with Especial Reference to the Insecta
Followed by an Inquiry into the Nature of Genera
en
~6 hours (351K characters)
Project Gutenberg
Produced by Charlene Taylor, Bryan Ness, Matthew Wheaton and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Internet Archive)