Abstract

 Page 
Aar valley, Glacial erosion in 588 
Abbe, Cleveland, J r., Commuting of dues by 515 
—, elected Fellow 
Acid volcanic rocks, Analysis of 121 
— — —, Characters and occurrences of 116 
— — — ( fragmental ), Characters and occurrences of 118 
— — —, Mineral constituents of 117 
Adams, Frank D. ; Memoir of Sir J. William Dawson 550 
Agassiz, A., cited on coral reefs of Hawaiian islands 31 
— — — Oahu coral reefs 30 
— — — valley glaciers in New England 439 
Aguflera, J. G., cited on geology of Sonora, Mexico 11, 12 
Alabama, Oriskany formation in 322 
Alexander, W. D., cited on geology of Oahu 16 
Alleghany series, Character and occurrences of 147 
— —, Clarion group of 148 
— —, Floras of 146, 155 
— —, Fossils from Clarion group of 149 
— — — — Freeport group of 154 
— — — — Kittanning group of 151 
— —, Freeport group of 153 
— —, Homotaxial relations between the Kanawha and 173 
— —, Kittanning group of  
 Page 
Aar valley, Glacial erosion in 588 
Abbe, Cleveland, J r., Commuting of dues by 515 
—, elected Fellow 
Acid volcanic rocks, Analysis of 121 
— — —, Characters and occurrences of 116 
— — — ( fragmental ), Characters and occurrences of 118 
— — —, Mineral constituents of 117 
Adams, Frank D. ; Memoir of Sir J. William Dawson 550 
Agassiz, A., cited on coral reefs of Hawaiian islands 31 
— — — Oahu coral reefs 30 
— — — valley glaciers in New England 439 
Aguflera, J. G., cited on geology of Sonora, Mexico 11, 12 
Alabama, Oriskany formation in 322 
Alexander, W. D., cited on geology of Oahu 16 
Alleghany series, Character and occurrences of 147 
— —, Clarion group of 148 
— —, Floras of 146, 155 
— —, Fossils from Clarion group of 149 
— — — — Freeport group of 154 
— — — — Kittanning group of 151 
— —, Freeport group of 153 
— —, Homotaxial relations between the Kanawha and 173 
— —, Kittanning group of  

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