Eocene Faunas from the Department of Bolivar, Colombia

Stratigraphy of Western Newfoundland

Sedimentary facies in geologic history: conference at meeting of the Geological Society of America held in New York, New York, November 11, 1948

Revision of the Families and Genera of the Devonian Tetracorals

American Permian Nautiloids

Maquoketa Brachiopoda of Iowa

Faunal Lists and Descriptions of Paleozoic Corals

Interpretation of Ore Textures

Ecology of Foraminifera, Northwest Gulf of Mexico

Interpretation of Aeromagnetic Maps

North American Geosynclines

Geologic Structure and Orogenic History of Venezuela

Deformation, Metamorphism, and Mineralization in Gypsum-Anhydrite Cap Rock Sulphur Salt Dome, Louisiana

Selected Petrogenic Relationships of Plagioclase

Paleozoic and Mesozoic Arachnida of Europe

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