Evolution

Evolution and Adaptation

The case against evolution

Mr. Gladstone and Genesis

The Biological Problem of To-day: Preformation Or Epigenesis

Evolution: Its nature, its evidence, and its relation to religious thought

Eurypterids of the Devonian Holland Quarry Shale of Ohio

History of biology

Darwin's On the Origin of Species

The Gospel of Evolution

Essays Upon Heredity and Kindred Biological Problems

Life's Dawn on Earth

Last Words on Evolution: A Popular Retrospect and Summary

The Riddle of the Universe at the close of the nineteenth century

The Kingdom of Man

Darwinism stated by Darwin himself

Faith and Fossils

The Coal Measures Amphibia of North America

Biology versus Theology

The Other Side of Evolution: Its Effects and Fallacy

The Ancestry of Modern Amphibia: A Review of the Evidence