Abstract

 Page 
Accessions to library, March, 1898, to March, 1899 515 
Adams, F. D., cited on Saint Jerome anorthosites 189 
Adirondacks, Syenite areas in 186 
—, Sequence of eruptions in 190 
Africa, Preglacial epeirogenic movements in 
Algonkian period, Definition of 201 
— rocks, Fossils from 227 
— —, Grand Canyon series of the 215 
— —, Lake Superior region in the 221 
—, Unconformity between Cambrian and 210 
American Association for the Advancement of Science, Organization of 86 
American Geological Society, Organization of 84 
American Journal of Mineralogy, Publication of 83 
Ami, H. M., cited on formations in the Champlain valley 453 
—, Discussion of Ordovician faunas in Lake Champlain valley by 461 
—, Reference to discussion by 461, 491 
Analyses : Bituminous material from Brooks well, West Virginia 283 
—: Effusives from the Lower Keweenawan 16, 17 
—: Grahamite 283 
—: Granites from Rhode Island and Connecticut 375 
—: Syenite rocks 183 
 Page 
Accessions to library, March, 1898, to March, 1899 515 
Adams, F. D., cited on Saint Jerome anorthosites 189 
Adirondacks, Syenite areas in 186 
—, Sequence of eruptions in 190 
Africa, Preglacial epeirogenic movements in 
Algonkian period, Definition of 201 
— rocks, Fossils from 227 
— —, Grand Canyon series of the 215 
— —, Lake Superior region in the 221 
—, Unconformity between Cambrian and 210 
American Association for the Advancement of Science, Organization of 86 
American Geological Society, Organization of 84 
American Journal of Mineralogy, Publication of 83 
Ami, H. M., cited on formations in the Champlain valley 453 
—, Discussion of Ordovician faunas in Lake Champlain valley by 461 
—, Reference to discussion by 461, 491 
Analyses : Bituminous material from Brooks well, West Virginia 283 
—: Effusives from the Lower Keweenawan 16, 17 
—: Grahamite 283 
—: Granites from Rhode Island and Connecticut 375 
—: Syenite rocks 183 

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