Stratigraphy and Fauna of the Agua Salada Group, State of Falcón, Venezuela

Stratigraphy of Western Newfoundland

Trilobites from the Lower Champlainian Formations of the Appalachian Valley

North American and European Stropheodontids: Their Morphology and Systematics

Upper Paleozoic of Peru

Silicified Middle Ordovician Trilobites

Stratigraphy and History of the Moenkopi Formation of Triassic Age

Ordovician Cephalopod Fauna of Baffin Island

Paleozoic and Mesozoic Rocks of Gros Ventre, Teton, Hoback, and Snake River Ranges, Wyoming

Sunken Islands of the Mid-Pacific Mountains

Cenozoic Foraminifera of Micronesia

Beekmantown Group (Lower Ordovician) of Maryland

Genus Pentremites and its Species

Fenestella from the Permian of West Texas

Coastal Sand Dunes of Oregon and Washington

Metamorphic Reactions and Metamorphic Facies

Origin of Granite in the Light of Experimental Studies in the System NaAlSi308-KAlSi308-Si02-H20

Selected Bibliographies of Hydrothermal and Magmatic Mineral Deposits

Relation of Ore Deposition to Doming in the North American Cordillera

Molluscan Faunas of the Flagstaff Formation of Central Utah