Bibliographic Index of American Ordovician and Silurian Fossils ...

The Waverlyan Period of Tennessee

A Study of the James Types of Ordovician and Silurian Bryozoa

Dendroid Graptolites of the Niagaran Dolomites at Hamilton, Ontario

The Bryozoan Fauna of the Rochester Shale

The Structural Features of the Bryozoan Genus Homotrypa, with Descriptions of Species from the Cincinnatian Group

The Formation of Geodes with Remarks on the Silicification of Fossils

Bibliography of North American Geology, 1931 and 1932

Fossil and Recent Bryozoa of the Gulf of Mexico Region

North American Early Tertiary Bryozoa: 1920