Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1909. Hardcover. Bulletin 371] Reconnaissance of Book Cliffs Coal Field; 372] Bibliography of North American Geology, 1906-1907; 373] Smokeless Combustion of Coal in Boiler Plants; 374] Mineral Resources of Kotsina-Chitina Region, Alaska; 375] Fortymile Quadrangle, Yukon-Tanana Region, Alaska. The five bulletins bound..... More