CLASSIFIED KEY TO THE INDEX. 
Page. 
Alabama 89 
Alaska 89 
Archean and Algonkian 89 
Canada 89 
Appalachian region 89 
Great Lakes region 89 
Mississippi Valley 89 
Great Basin region 89 
Miscellaneous 89 
Arizona 89 
Arkansas 90 
Bermuda Islands 90 
Bibliography 90 
California 90 
Cambrian 90 
Canada 90 
New England 90 
Appalachian region 90 
Great Bakes region 91 
Mississippi Valley 91 
Great Basin region 91 
Sierra Nevada and Pacific Coast region 91 
Miscellaneous 91 
Canada 91 
General : 91 
Alberta 91 
British Columbia 91 
Manitoba 91 
New Brunswick 91 
Northwest Territory 91 
Nova Scotia 91 
Ontario 92 
Quebec 92 
Carboniferous 5*2 
Canada 92 
New England 92 
Appalachian region 92 
Mississippi Valley 92 
Rocky Mountain region 93 
( i re at Basin region 93 
Sierra Nevada and Pacific ('oast region 93 
Colorado 93 
Connecticut 93 
L5 
