Paleontology

Geology and Inhabitants of the Ancient World

Eurypterids of the Devonian Holland Quarry Shale of Ohio

Fossil Butterflies

Introduction to the Study of Palæontological Botany

The Rise and Progress of Palaeontology

North American Plesiosaurs: Elasmosaurus, Cimoliasaurus, and Polycotylus

Researches on the Visual Organs of the Trilobites

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

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

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