Dinosaurs & Prehistoric

Encyclopedia of Dinosaurs: Triassic, Jurassic and Cretaceous Periods

Dinosaur Quiz Book

The Top 10 Deadliest Dinosaurs

The Atlas of Dinosaurs

A Summer in a Canyon

A Guide to Dinosaurs Their Past and Future

The Ornithosauria

Descriptions of Two Species of Frogs, Genus Ptychohyla

Extinct Monsters

The Life Story of a Black Bear

Researches on the Visual Organs of the Trilobites

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

Water Reptiles of the Past and Present

Cave Hunting

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

The Lost Lemuria

Dragons of the Prime

Beast and Man in India

The Prehistoric World; Or, Vanished races

A voyage to Spitzbergen containing an account of that country, of the zoology of the North; of the Shetland Islands; and of the whale fishery