INDEX TO VOLUME 10 



Page 

 Accessions to library, B'larch, 1898, to March, 



1899 515 



Adams, F. D., cited ou Saint Jerome anortho- 



sites 189 



Adirondacks, Syenite areas in 186 



— , Sequenceof eruptions in 190 



Africa, Preglaeial epeirogenie movements 



in 8 



Algonkian period, Definition of..... 201 



— roclvs. Fossils from 227 



, Grand Canyon series of the 215 



, Lake Superior region in the 221 



— , Unconformity between Cambrian and... 210 

 American .Association for the Advance- 

 ment OF Science, Organization of 86 



-American Geological Society, Organization 

 of 84 



American Journal of Mineralogy, Publica- 

 tion of 83 



Ami, H. M., cited on formations in the Cham- 

 plain valley 453 



— , Discussion of Ordovieian 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.l6, 17 



— : Grahamite 283 



— : Granites from Rhode Island and Con- 

 necticut .375 



— : Syenite rocks 183 



Anorthosites, Relations between syenites 



and 188 



Appalachian baseleveling. Problem of 273 



Archean-Cambrian contact near Manitou, 



Colorado; W.O.Crosby 141 



Arizona, Fossils from the Grand Canyon 



series 232 



— , Grand Canyon series in 215 



AspiDELLA terranovica, Description of 231 



Association of American Geologists, Organ- 

 ization of. 85 



Atlantic coast. Submerged vallej's of 7 



Atlantosaurus beds, Jurassic age of 393 



AuGiTE-SYENiTE gneiss near Loon lake. New 



York, Geologic age of. 185 



, Microscopic character 



and mineral constituents of. 180 



, Structure of. 182 



; H. P. Gushing 177 



Av,\L0N terrane, Formations of 219 



, Unconformity between Cambrian and. 220 



Bailey and Matthew, cited on granites in 

 New Brunswick 377, 378 



Bain, H. Foster, and A. G. Leonard ; Middle 

 Coal Measures of the western interior 

 coalfields [abstract] 10 



Barlow, A. E., Title of paper by 498 



Barrois, Charles, cited on supposed fossils 

 from the pre-Cambrian of Brittany 227 



Bascom, Florence, cited on acid volcanic 

 rocks 229 



Baseleveling, Problem of Appalachian 273 



— , Spacing of rivers with reference to hy- 

 pothesis of 263 



Batholitic granites. Difference in, accord- 

 ing to depth of erosion 499 



LXXIV— Bull. Geol. Soc. Am., Vol. 10, 1898 



Bell, Robert, Abstract of paper read by 495 



— , cited on fossils in old lake deposits 168 



— , Reference to discussion by ; 491 



— , Title of paper by 452 



Beltina, Description of 238 



— dartai, Description of 239 



Belt terrane. Age of Cambrian bed rest- 

 ing on 209 



, Description of fossils from 235 



, Fossils from 235 



, Geologic position of. 201 



— — , Principal formations of 204 



, References to literature concerning... 201 



, Section of.....; 208 



, Unconformity between Cambrian and. 210 



Beulah formation. Black Hills, Occurrence 



and description of. ,393 



Bituminous material from Brooks well, 



Ritchie connty, West Virginia 281 



Black hills, Classification and nomencla- 

 ture of geologic formations in 386 



, Fossils from the Sundance formation.. 388 



, General character of 384 



, Geologic history of Jurassic deposits 



in 394 



, Jurassic fishes from 397 



, Jurassic formations of 383 



, Map of .-;... 384 



, Sundance formation in 387 



, Unkpapa formation 303 



Blake, J. Henry, Illustrations of fossil 



fishes prepared by 401 



Bog bay. Lake of the Woods, Gold-bearing 



veins of. 495 



Brainard, E., and H. M. Seely, cited on 



formations in the Champlain valley 453 



occurrence of lower Ordovieian 



strata in New York 457 



Bransford, J. F., and Theodore Gill, cited 



ou fishes of lake Nicaragua 343 



Brewer, W. H., Reference to discussion by.. 479 

 Brito formation, Nicaragua, Occurrence 



and character of. 309 



British Isles, Fiords and submerged val- 

 leys of 7 



— Columbia, Pre-Cambrian sedimentary 

 rocks in 226 



Britton, N. L., cited on the drift of Staten 

 island 2 



Brogger, W. C, Reference to description of 

 akerite by 183 



Brooks, A. H., and J. E. Wolff, cited on 

 granites in New Jersey 380 



Brooks well. West Virginia, Analysis of bi- 

 tuminous material from 283 



, Bituminous material from 281 



, Boring record of. 282 



Bruce, Archibald, American Journal of 

 Mineralogy established by 83 



Buchanan, J. Y., cited on the submerged 

 channel of the Congo 8 



Bulletin, Distribution of. 414 



— sales 415 



Butternut creek, Preglaeial valley of 61 



California, Pre-Cambrian sedimentary 



rocks in , 226 



— , Submerged valleys in 6 



(527) 



