BILLINGS — BLANCHARt) 15 



Page 



Billings, E., Reference to work of. 1, 41 ; 2, 478 



BiLOXi sands, Definition of the 2, 24 



BiNNEY, , cited on origin of petroleum 9, 91 



BiNNS, G. J., Acknowleilgments to 9, 56 



BiscH'OF, G., cited on dolomites 6, 190 



origin of gx'aphite 5, 63 



rock decay 6, 327 



silicate of gold 6, 237 



Bishop, J. P., Photographs presented by 8, 380, 385 



Bishop, Mrs T. B., Acknowledgments to 10, 425 



Bituminous coal basins of Pennsylvania 5, 42 



— material from Brooks well, Ritchie county, West Virginia 10, 281 



Black Bluff clays, Description of the 2, 595 



Black Eagle falls. Section at 3, 311 



"Black earth" of the steppes of southern Russia; A. N. Krassnof 3, 68 



Black hills, Classification and nomenclature of geologic formations in the. 10, 386 



, Crystalline rocks of the 2, 221 



, Fossils from the Sundance formation of the 10, 388 



, General character of the 10, 384 



, Geologic history of Jurassic deposits in the 10, 394 



, Jurassic fishes from the 10, 397 



formations of the 10, .383 



, Map of the 10, 384 



— — , Pre-Cambrian rocks of the 1, 203 



, Sundance formation in the 10, 387 



, Unkpapa formation in the «• 10, 393 



Black mountains. Development of the 2, 548 



Black River limestone of Clinton county. New York 6, 286, 287 



Canada 6, 299 



Blair, M. S., Acknowledgments to 7, 425 



Blainville, DE, cited on Indian fossil elephants 9, 380 



Blake, J. Henry, Illustrations of fossil fishes prepared by 10, 401 



Blake, T. A., Reference to work of, in Alaska 1, 138 



Blake, W. P., cited on Adirondack apatite 6, 260 



age of the auriferous slates 5, 244 



exfoliation 7, 290 



faulting in the Sierra Nevada • 3, 438 



geology of Lower California 5, 490 



granite in the Sierra Nevada 3, 424 



jaspers of California 6, 83 



Pacific Coast ranges 6, 73, 74 



tin ores of the Black hills 1, 204 



— , Discussion of terrestrial submergence by 5, 21 



— , Reference to work in California by 6, 75 



— , Title of paper by 6, 16 



— ; Wisconsin zinc and lead deposits 5, 25 



Blake plateau, Antillean region, Features of 6, 109 



Blanchard, Miss M. L., Analysis by 3, 358 



