98 CLASSIFIED KEY TO THE INDEX. 
Page. 
Chemical analyses 106 
Classification 107 
Colorado 107 
Connecticut 108 
Correlation 108 
Cretaceous 108 
Atlantic coast region 108 
Canada 108 
Great Plains region ! 108 
Mexico 108 
Mississippi Valley region 108 
Pacific coast region 108 
Rocky Mountain region 108 
Southwestern region 1 08 
Devonian 108 
Appalachian region 108 
Canada 108 
Great Basin region 108 
I ! r< -at Lakes region 108 
Mississippi Valley region 108 
New England and New Y< >rk 108 
Southwestern region 108 
General 108 
Dist rict of C< >luml >ia 108 
Dynamic geology — ( reographre divisions 108 
Appalachian region 108 
Atlantic coast region 108 
( lanada 108 
< heat Basin region 109 
Great Lakes region 109 
( iivat Plains region 109 
Hawaiian Islands 1 09 
Mexico 109 
Mississippi Valley region 109 
New England 109 
Pacific coast region 109 
Panama 109 
Rocky Mountain region 109 
Southwestern region 109 
West Indies 109 
( xeneral .109 
Dynamic geology — Divisions by subject-matter 109 
Denudation 109 
Erosion 110 
Faulting _ ' 110' 
Folding 110 
Intrusion 110 
Jointing 110 
Oscillation 110 
Sedimentation 110 
Volcanoes 110 
Economic geology 110 
Alabama 110 
Alaska 110 
