Paleontology

Geology and Inhabitants of the Ancient World

Eurypterids of the Devonian Holland Quarry Shale of Ohio

The Rise and Progress of Palaeontology

Introduction to the Study of Palæontological Botany

Researches on the Visual Organs of the Trilobites

North American Plesiosaurs: Elasmosaurus, Cimoliasaurus, and Polycotylus

Fossil Ice Crystals: An Instance of the Practical Value of “Pure Science”

Fossil Butterflies

The zoology of the voyage of H.M.S. Beagle: Fossil mammalia

A Monograph of the Trilobites of North America: with Coloured Models of the Species

Relics of Primeval Life: Beginning of Life in the Dawn of Geological Time