The Diatomaceae of Philadelphia and Vicinity, by Charles Sumner Boyer 44569 [Link: http://www.gutenberg.org/4/4/5/6/44569 ] [Files: 44569.txt; 44569-8.txt; 44569-h.htm]
Thanks to Charlene Taylor, Bryan Ness, Keith Edkins and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Internet Archive) David
