Summaries of Recent North American Pre-Cambrian LiteratureThe Structure of the Piedmont Plateau as Shown in Maryland. Edward B. MathewsGenesis of the Amphibole Schists and Serpentines of Manhattan Island, New York. A. A. JulienGranites of North Carolina. T. L. WatsonThe Geological Structure of the Southwestern New England Region. William H. HobbsLineaments of the Atlantic Border Region.A Treatise on Metamorphism. Charles R. Van HiseThe Menominee Iron-Bearing District of Michigan. W. S. BayleyThe Menominee Special Folio. Charles R. Van Hise , W. S. BayleyThe Baraboo Iron-Bearing District of Wisconsin. S. WeidmanEconomic Resources of Moose River Basin. James M. BellThe Abitibi Region. George F. KayThe Classification of the Archean. A. P. ColemanThe Contact of the Archean and Post-Archean in the Region of the Great Lakes. A. B. WillmottThe Northern Nickel Range. A. P. ColemanReport on an Exploration of the East Coast of Hudson Bay. A. P. LowThe Newly Discovered Rock at Sioux Falls, South Dakota. J. E. ToddQuarrying Industry of Missouri. E. R. Buckley , H. A. BuehlerEconomic Resources of the Northern Black Hills. J. D. IrvingPreliminary Report on the Geology of the Arbuckle and Wichita Mountains in Indian Territory and Oklahoma. Joseph A. TaffAn Occurrence of Greenstone Schists in the San Juan Mountains, Colorado. Ernest HoweThe Copper Deposits of the Encampment District, Wyoming. Arthur C. SpencerA Geological Reconnaissance Across the Bitterroot Range and Clearwater Mountains in Montana and Idaho. Waldemar LindgrenThe Geology and Ore Deposits of the Bisbee Quadrangle. F. L. RansomeGeology of the Globe Copper District, Arizona.Description of the Globe Quadrangle.Description of the Bisbee Quadrangle.A Geological Reconnaissance Across the Bitterroot Range and Clear-water Mountains in Montana and Idaho. Waldemar Lindgren