DINOSAURS.

Table of Contents.

Chapter I.[The Age of Reptiles. Its Antiquity, Duration and Significance in Geological History.]9
Chapter II.[North America in the Age of Reptiles. Its Geographic and Climatic Changes.]16
Chapter III.[Kinds of Dinosaurs. Common Characters and Differences between the various Groups. Classification.]25
Chapter IV.[The Carnivorous Dinosaurs—Allosaurus, Tyrannosaurus, Ornitholestes, etc. ]33
Chapter V.[The Amphibious Dinosaurs—Brontosaurus, Diplodocus, etc.]60
Chapter VI.[The Beaked Dinosaurs. The Iguanodonts—Iguanodon, Camptosaurus.]75
Chapter VII.[The Beaked Dinosaurs (continued). The Duckbilled Dinosaurs—Trachodon, Saurolophus.]82
Chapter VIII.[The Beaked Dinosaurs (continued). The Armored Dinosaurs—Stegosaurus, Ankylosaurus.]101
Chapter IX.[The Beaked Dinosaurs (concluded). The Horned Dinosaurs—Triceratops, etc.]107
Chapter X.[Geographical Distribution of Dinosaurs.]114
Chapter XI.[Collecting Dinosaurs. How and Where they are Found. The First Discovery of Dinosaurs in the West. The Bone-Cabin Quarry. Fossil Hunting by Boat in Canada.]116

PREFACE.

This volume is in large part a reprint of various popular descriptions and notices in the American Museum Journal and elsewhere by Professor Henry Fairfield Osborn, Mr. Barnum Brown, and the writer. There has been a considerable demand for these articles which are now mostly out of print. In reprinting it seemed best to combine and supplement them so as to make a consecutive and intelligible account of the Dinosaur collections in the Museum. The original notices are quoted verbatim; for the remainder of the text the present writer is responsible. Professor S.W. Williston of Chicago University has kindly contributed a chapter—all too brief—describing the first discoveries of dinosaurs in the Western formations that have since yielded so large a harvest.

The photographs of American Museum specimens are by Mr. A.E. Anderson; the field photographs by various Museum expeditions; the restorations by Mr. Charles R. Knight. Most of these illustrations have been published elsewhere by Professor Osborn, Mr. Brown and others. The diagrams, figs. 1-9, 24, 25, 37 and 40, are my own.

W. D. M.