108 BIBLIOGRAPHY AND INDEX OF N. A. GEOLOGY, [bull. 162. 
Page. 
Chemical analyses 116 
Classification 118 
Colorado 118 
Connecticut 118 
Costa Rica 119 
Cretaceous 119 
Classification 119 
Correlation , 119 
Greenland 119 
Canada 119 
Atlantic coast region , 119 
Mississippi Valley 119 
Great Plains region 119 
Rocky Mountain region 119 
Southwestern region 119 
Pacific coast region 119 
Cuba 119 
Devonian 119 
Nomenclature aud classification 119 
Correlation 119 
Canada 119 
New England 119 
New York 119 
Appalachian region 119 
Mississippi Valley 119 
Rocky Mountain region 120 
District of Columbia „ 120 
Dynamic geology „ 120 
Economic geology , 121 
General 121 
Alabama 121 
Alaska 121 
Arizona 121 
Arkansas 121 
California 121 
Canada 121 
Colorado 122 
Cuba 122 
Georgia 122 
Greenland , 122 
Idaho 122 
Illinois 122 
Indiana 122 
Indian Territory 122 
Iowa , 122 
Kansas 122 
Kentucky 122 
Louisiana 122 
Maryland 122 
Massachusetts 122 
Mexico 122 
Michigan 122 
Minnesota 122 
Missouri 122 
Montana 123 
