viii TABLE OF CONTENTS 



IX. Succession and Distribution of Later Mesozoic Inver- page 



TEBRATE FaUNAS IN NORTH AMERICA 182 



By T. W. Stanton 



Paleogeographic Maps — Lower Cretaceous and Upper 

 Cretaceous 196 



By Bailey Willis 



X. Succession and Range of Mesozoic and Tertiary 



Floras 200 



By F. H. Knowlton 



XL Conditions Governing the Evolution and Distribution 



OF Tertiary Faunas 212 



By W. H. Dall 



Paleogeographic Maps — Eocene-Oligocene and Mio- 

 cene 222 



By Bailey Willis 



XII. Environment of the Tertiary Faunas of the Pacific 



Coast of the United States 226 



By Ralph Arnold 



XIII. Correlation of the Cenozoic Through Its Mammalian 

 Life 251 



By Henry F. Osborn 



XIV. Physical Geography of the Pleistocene with Refer- 

 ence TO the Correlation of Pleistocene Formations . 265 



By Rollin D. Salisbury 



Paleogeographic Maps — Quaternary .... 276 

 By Bailey Willis 



XV. Origination of Self-Generating Matter and the 

 Influence of Aridity upon Its Evolutionary Develop- 

 ment 278 



By D. T. Macdougal 



XVI. DiASTROPHISM AS THE ULTIMATE BaSIS OF CORRELATION . 298 



By Thomas Chrowder Chamberlin 



