14 CLASSIFIED KEY TO INDEX. 
Economic geology — Continued. Page. 
Oregon 80 
Panama 80 
Pennsylvania 80 
Porto Eico 80 
South Carolina 80 
South Dakota s 80 
Tennessee 81 
Texas 81 
Utah 81 
Vermont 82 
Virginia . 82 
Washington 82 
West Indies 82 
West Virginia 82 
Wisconsin 82 
Wyoming 83 
Products described 83 
Florida 92 
Geologic formations described 92 
Geologic maps 107 
Georgia 109 
Glacial geology 109 
General 109 
Nomenclature Ill 
Alaska Ill 
Canada 112 
Greenland -. 112 
Kansas 112 
Kentucky 113 
Labrador 113 
Mexico 113 
Nebraska 113 
New England 113 
Newfoundland 113 
New Jersey 113 
New York . 113 
Ohio 1 14 
Pennsylvania 114 
South Dakota 114 
West Virginia '. 114 
Great Lakes region 115 
Mississippi Valley region 115 
Rocky Mountain region _ 116 
Pacific Coast region ■_ 116 
Greenland 117 
Guatemala 117 
Hawaiian Islands 117 
Idaho 117 
Illinois 117 
Indiana 118 
Indian Territory 119 
Iowa 120 
Jamaica 121 
