The geology of Kentucky, a classified compend of state reports and other publications, with critical comment based on original investigations Q Science
Geology of Mongolia : a reconnaissance report based on the investigations of the years 1922-1923 Q Science
The geology of Pennsylvania; a government survey: with a general view of the geology of the United States, essays on coal-formation and its fossils, and a description of the coal-fields of North America and Great Britain Q Science
