Abstract

 Page 
Abbott, C. C., cited on paleolithic man 640 
Abbott, Richard, Discovery of paleoliths by 640 
Adams, C. B., cited on the Champlain group 293 
Adams Lake series defined 168 
Adirondacks, Crystalline rocks of the 218 
Agassiz, Lake, Phenomena of 252 
“Age,” Definition of topographic 547 
Alabama, Ancient topography of 561 
—, Appomattox formation in 
—, Cretaceous and Tertiary strata of 587 
— river, Section on 606 
Alaska, Glaciation of 266 
Alberta, Glacial river courses in 245 
Albirupean, Proposed abandonment of 436 
Algonkian rock disintegration 221 
—, Validity of term, disputed 176 
Allen, James, Discovery of fire opal by 639 
Am. Ass. Adv. Sci., Proposed cooperation with 609 
Ami, H. M.; On the geology of Quebec and environs 477 
—, Record of discussion by 634 
—, Title of paper by 632 
Analysis of augite 344 
— — diabase 346, 412 
— — feldspar 343 
— — hypersthene 345 
— — sandstones 412 
— — schists 413 
— — serpentines 414 
— — shales 410, 
 Page 
Abbott, C. C., cited on paleolithic man 640 
Abbott, Richard, Discovery of paleoliths by 640 
Adams, C. B., cited on the Champlain group 293 
Adams Lake series defined 168 
Adirondacks, Crystalline rocks of the 218 
Agassiz, Lake, Phenomena of 252 
“Age,” Definition of topographic 547 
Alabama, Ancient topography of 561 
—, Appomattox formation in 
—, Cretaceous and Tertiary strata of 587 
— river, Section on 606 
Alaska, Glaciation of 266 
Alberta, Glacial river courses in 245 
Albirupean, Proposed abandonment of 436 
Algonkian rock disintegration 221 
—, Validity of term, disputed 176 
Allen, James, Discovery of fire opal by 639 
Am. Ass. Adv. Sci., Proposed cooperation with 609 
Ami, H. M.; On the geology of Quebec and environs 477 
—, Record of discussion by 634 
—, Title of paper by 632 
Analysis of augite 344 
— — diabase 346, 412 
— — feldspar 343 
— — hypersthene 345 
— — sandstones 412 
— — schists 413 
— — serpentines 414 
— — shales 410, 

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