[posted] Posted (#49271, Crosby) !

Common Minerals and Rocks, by William O. Crosby 49271 [Link: http://www.gutenberg.org/4/9/2/7/49271 ] [Files: 49271-0.txt; 49271-h.htm] Thanks to Shaun Pinder 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