CLASSIFIED  KEY  TO  THE  INDEX. 
Page. 
Alabama 293 
Alaska 293 
Archean  and  Algonkian 395 
Alaska 395 
Appalachian  region. 395 
Canada 395 
Great  Basin  region 395 
Great  Lakes  region 396 
Great  Plains  region. 396 
Lake  Superior  region 396 
Mississippi  Valley  region 396 
New  England  and  New  York 396 
Pacific  coast  region 396 
Rocky  Mountain  region 396 
Southwestern  region 397 
General 397 
Arizona 397 
Arkansas 398 
Bibliography 399 
Biography 403 
California 404 
Cambrian 407 
Appalachian  region 407 
Canada 407 
Great  Basin  region 407 
Great  Lakes  region 407 
Great  Plains  region 407 
Lake  Superior  region 408 
Mississippi  Valley  region 408 
New  England  and  New  York 408 
Pacific  coast  region 408 
Rocky  Mountain  region 408 
Southwestern  region 408 
General 408 
Canada 408 
Alberta 408 
Assiniboia 409 
Athabasca 409 
British  Columbia 409 
Cape  Breton  Island 410 
Franklin. 410 
Keewatin 410 
Labrador 410 
Manitoba 410 
New  Brunswick  .......?,.,rT„.T,., ,,,..,...... T  4U 
383 
