The Biological Problem of To-day, by Oscar Hertwig���������������������� 37221 � [Subtitle: Preformation Or Epigenesis? The Basis of a Theory of Organic Development] � [Translator: Peter Chalmers� Mitchell] � [Link: [1]http://www.gutenberg.org/3/7/2/2/37221 ] � [Files: 37221.txt; 37221-8.txt; 37221-h.htm] Thanks to Bryan Ness, Josephine Paolucci and the Online Distributed Proofreading Team at [2]http://www.pgdp.net. (This book was produced from scanned images of public domain material from the Google Print project.) Many thanks Janet References 1. http://www.gutenberg.org/3/7/2/2/37221 2. http://www.pgdp.net/