The Project Gutenberg EBook of Evolution in Modern Thought, by Ernst Haeckel and J. Arthur Thomson and August Weismann This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at Title: Evolution in Modern Thought Author: Ernst Haeckel J. Arthur Thomson August Weismann Release Date: August 29, 2007