TABLE OF CONTENTS. xiii 



748. Rocky Mountain and Great Basin Region, 750. Pacific 

 Region, 751. Mexico, 752. North America, General, 752. 



Permic 752 



Eastern Canada, 752. Appalachian Region, 752. Mississippi 

 Valley, 752. Rocky Mountains and Great Basin, 754. Pacific 

 Region, 754. North America, General, 754. 



PalcEOZoic, General 754 



Eastern Canada and Maine, 754. Western Canada, 755. Ap- 

 palachians and Western New England, 756. Mississippi Valley, 

 756. Rocky Mountains and Great Basin, 760. Pacific Region, 

 760. North America, General, 761. 



Triassic 762 



Eastern Canada, 762. Western Canada, 762. Appalachian 

 and Atlantic, 762. Mississippi Valley and Gulf, 763. Rocky 

 Mountains and 'Great Basin, 763. Pacific Region, 763. 

 Mexico, 763. North America, General, 764. 



Jurassic 764 



Western Canada, 764. Hudson Bay and Arctic Region, 764. 

 Appalachian and Atlantic, 764. Mississippi Valley and Gulf, 



764. Rocky Mountains and Great Basin, 764. Pacific Region, 



765. Mexico, 765. North America, General, 765. 



Comanchic 765 



Appalachian and Atlantic, 765. Western Gulf Region, 766. 

 Rocky Mountains and Great Basin, 767. Pacific Region, 767. 

 Mexico, 768. North America, General, 768. 



Cretacic 768 



Western Canada, 768. Appalachian and Atlantic, 769. Mis- 

 sissippi Valley and Gulf, 770. Rocky Mountains and Great 

 Basin, 772. Pacific Region, 774. Mexico, 775. West Indies, 



776. North America, General, 776. 



Mesozoic — General yy6 



Arctic Region, 776. Appalachian and Atlantic, 777. Missis- 

 sippi Valley and Gulf, 777. Rocky Mountain and Great Basin, 



777. Pacific Region, 778. North America, General, 779. 



Cenozoic or Tertiary 779 



Eastern Canada and Eastern New England, 779. Western 

 Canada, 779. Arctic Region, 779. Appalachian and Atlantic, 

 779. Gulf Region, 782. Northern Mississippi Valley, 785. 

 Rocky Mountains and Great Basin Region, 785. Pacific 

 Region, 786. Mexico and Central America, 789. West Indies 

 and Bermudas, 790. North America, General, 791. 



