Report on the geology of the Henry Mountains, by Grove Karl Gilbert 75119 [Author: Grove Karl Gilbert] [Link: https://www.gutenberg.org/ebooks/75119] note: link will be active within two hours of posting. Thanks to Richard Tonsing and the Online Distributed Proofreading Team at https://www.pgdp.net (This file was produced from images generously made available by The Internet Archive) Regards, Robert