Evolution of the Horse Brain

Stratigraphy of Western Newfoundland

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

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