weeks] PALEONTOLOGY, PETROLOGY, AND MINERALOGY, 1898. 107 
CLASSIFIED KEY TO THE INDEX. 
Page. 
Alabama 113 
Alaska 113 
Archean and Algonkian 113 
General , 113 
Canada 113 
New England 113 
New York and New Jersey 113 
Great Lakes region 113 
Mississippi Valley 113 
Rocky Mountain region 113 
Arizona 113 
Arkansas 113 
Bermuda Islands 113 
Bibliography „ 113 
Biograpby 114 
California 114 
Cambrian 114 
Canada 114 
New England 114 
New York 114 
Appalachian region 114 
Lake Superior region 114 
Mississippi Valley 114 
Rocky Mountain region 114 
Canada : 114 
General 114 
Athabasca 115 
British Columbia 115 
New Brunswick 115 
Northwest Territory 115 
Nova Scotia 115 
Ontario , 115 
Quebec 115 
Carboniferous (including Permian) 115 
Classification and nomenclature 115 
Correlation 115 
New England 115 
New York 116 
Appalachian region 116 
Great Lakes region 116 
Mississippi Valley 116 
Great Plains region 116 
Southwestern region 116 
Rocky Mountain region 116 
Pacific coast region 116 
Central America 116 
