CLASSIFIED KEY TO THE INDEX. 17 
Economic Geology — Continued. Page. 
Tennessee * 96 
Texas 96 
Utah 96 
Vermont . 96 
Virginia 96 
West Virginia 97 
Wisconsin 97 
Wyoming 97 
Miscellaneous discussions 97 
Economic products described 97 
Florida 98 
Georgia 98 
Glacial geology 98 
Alaska 98 
Canada 98 
Greenland 99 
Illinois 99 
Iowa 99 
Kentucky 99 
Labrador 99 
Michigan 99 
Missouri 99 
New England 99 
Newfoundland 99 
New Jersey 99 
New York 99 
Ohio 99 
Pennsylvania 99 
Wisconsin 99 
General papers 99 
Greenland 100 
Idaho 100 
Illinois 100 
Indiana 100 
Indian Territory 100 
Iowa 100 
Jura-Trias • 101 
Canada 101 
New England 101 
Appalachian region 101 
Rocky Mountain region 101 
Sierra Nevada and Pacific Coast region 101 
Miscellaneous 101 
Kansas 101 
Kentucky 101 
Labrador 101 
Louisiana i 101 
Maine 101 
Maryland 101 
Massachusetts .• 101 
Mexico 101 
Michigan 101 
Mineralogy 102 
Condensed titles of papers 102 
Minerals described 102 
Bull. 146 2 
