xvi CONTENTS. 



CHAPTER XLIX. 



Rocks of the Devonian Period Old Red Sandstone Devonian 



Rocks of N. America Life of the Devonian Period, . . 520-523 



CHAPTER L. 



Rocks of the Carboniferous Period Life of the Carboniferous Period 



Rocks of the Permian Period Life of the Permian Period, 524-530 



CHAPTER LI. 



Rocks of the Triassic Period Rhaetic beds Life of the Triassic 



Period, 530-535 



CHAPTER LII. 

 Rocks of the Jurassic Period Life of the Jurassic Period, . . 535-539 



CHAPTER LIII. 

 Rocks of the Cretaceous Period Life of the Cretaceous Period, 540-546 



CHAPTER LIV. 



Pakeontological break between the Secondary and Tertiary Rocks 

 Classification of the Tertiary Rocks Rocks of the Eocene 

 Period Life of the Eocene period, 546-552 



CHAPTER LV. 

 Rocks of the Miocene Period Life of the Miocene Period, . 552-554 



CHAPTER LVI. 



Rocks of the Pliocene Period Life of the Pliocene Period Post- 

 Pliocene Period Pre-Glacial Deposits Pre-Glacial Mammals 

 Glacial Deposits Glacial Shells Post-Glacial Deposits Post- 

 Glacial Mammals, ........ 554-562 



GLOSSARY, 563-585 



INDEX, 586-601 



