Bulletin of the United States Geological Survey

American Jour andesitic Anticosti Athyris Atrypa augite Billings brachiopods Bull Camarotœchia Cambrian Canada Canadian Nat Carb Chonetes Conchidium Conrad County Crania Cyrtina d'Orbigny Dalmanella Delthyris Devonian Dielasma Discina Expl Foraminifera Fourth Dist Genotype Hall and Clarke Hall and Whitfield Hamilton Dev Hist Ibidem Indiana Jersey Kentucky Kentucky Fossil Shells Kentucky Geol labradorite latites Leptæna Lingula Lingulella Lorraine Ord Louis Acad Lower Helderberg Dev McChesney Meek and Worthen Meristella Miller Minnesota Geol N. Y. State Cab N. Y. State Geol N. Y. State Geologist Nettelroth Nevada Niagara Sil Nodosaria Ohio Orbiculoidea Orthis pedicle Pentamerus phenocrysts Philadelphia Platystrophia Proc Productella Productus Reuss Rhipidomella Rhynchonella Schoharie Second Ann Shumard Sowerby species Spirifer Spirifera Spiriferina Streptorhynchus Stropheodonta Strophomena Survey Missouri Swallow Telotremata Tenth Rep Terebratula Thirteenth Rep Trans U. S. Geol Upper Carboniferous VIII Waagen Walcott Winchell and Schuchert Wisconsin York State Cab