620 



BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 



Page 

 Benton formation in eastern South Dakota ; 



J. E.Todd 569-575 



Iowa, Occurrence of 574 



Minnesota, Occurrence of 574 



Nebraska, Dip of 572 



, Extent of 573, 575 



, Occurrence of 575 



, Sections of 569, 571 



, Thickness of 569,571 



Berkeley meeting, Proceedings of. 581-586 



, Register of 586 



Bernice coal field, Pennsylvania, Coal beds 



in 51 



Berthier, P., Reference to inineralogical 



experiments of. 17 



Beulah, Colorado, Cretaceous rocks near... 428 



— , "Dakota" sandstone near 430 



Beulah shales, Character and extent of 389 



Beust, J. C. von, Reference to work of, in 



which ore deposition is discussed 12, 18 



Bibbins, Arthur, elected Fellow 532 



Bibliography : Bibliographies of ore deposi- 

 tion 28 



— : Literature of West Indian eruptions 



published in the United States ; by E O. 

 Hovey 562-566 



— : Writings of W. C. Knight 548-549 



— : Writings of J. Peter Lesley 538-541 



Big Black Creek basin, Pennsylvania, Fotts- 



ville formation in 42 



Big Blackfoot and Hellgate valleys, Mon- 

 tana, Geologic section in 576-578 



Bighorn limestone, Character and extent 



of. 394, 395, 396 



, Views showing exposures of. 395 



Bighorn mountains, Algonkian rocks in 394 



, Amsden formation in 396-397, 437 



, Benton group in 399-400, 444-446 



, Bighorn limestone in 395-396, 434-435 



, Cambrian rocks in 395, 434 



, Carboniferous rocks in 396-397, 4<5-441 



, Chugwater formation in 397-398, 438 



, Cloverly formation in 398-399 



, Columnar sections in 379, 437, 445 



, Deadwood formation in 395, 434 



, Formations in 394 



, Fox Hills sandstone in.... 400-401, 447-448 



, Laramie formation in 401, 448 



, Littlehorn limestone in 396, 436 



, Morrison formation in 398, 442-443 



, Niobrara formation in 400, 446-447 



, Ordovician rocks in 395-396, 434-435 



, Pierre shale in 400, 447 



, Stratigraphy of, compared with that 



of Black Hills and Rocky Mountain 



Front range 379-448 



, Sundance formation in... 398, 441-442 



, Tensleep formation in 397, 437-438 



, Views in 395, 396, 398 



Big Sioux river, Benton formation along.... 573 



, Greenhorn formation along 574 



Big Stone gap, Section in 147-148 



Big Stone lake, Minnesota, Benton forma- 

 tion at 574 



Billings, E, cited on age of Dalmanites luna- 



tus 480 



Bischof, Gustav, Views of, on ore deposi- 

 tion 18 



Bitumen in southern coast ranges of Cali- 

 fornia, Origin of. 582 



Black Creek basin, Pennsylvania, coal 



beds in 48 



■, Pottsville formation in 42 



Black hills, Algonkian rocks in 383 



, Benton group in 391-392, 444-446 



, Cambrian rocks in 382, 434 



, Carboniferous rocks in.... 384-386, 435-441 



, Carlile formation in 392, 444-446 



, Columnar sections in 379, 437, 445 



. Cretaceous rocks in 388-393, 442-444 



Page 



Black hills, "Dakota" sandstone in 389 



390-391.443-444 



, Deadwood formation in 382, 434 



, Englewood limestone in 384, 435-436 



, Formations in, Table showing 383 



, Fox Hills sandstone in 393-394, 447-4-18 



, Fuson formation in 389-390 



, Graneros formation in 391, 444-446 



, Greenhorn limestone in... 391-392, 444-446 



, Lakota sandstone in 389, 443-445 



, Laramie formation in 393-394, 448 



, Minnekahta formation in 386, 438 



, Minnelusa formation in... 384-385, 435-436, 



437-438 



, Minnewaste limestone in 389 



, Morrison shales in 388-389, 442-443 



, Niobrara formation in 392, 446-447 



, Opeche formation in 385-386, 438 



, Ordovician rocks in 382-384, 434-435 



, Pahasapa limestone in 384, 435-436 



, Pierre shale in 392-393, 447 



, Spearfish formation in , 386-387 



, Stratigraphy of, compared with that 



of Bighorn mountains and Rocky Moun- 

 tain Front range 379-448 



, Sundance formation in 387-:-s88, 441-442 



, Triassie rocks in... 386-387, 397-398,436-440 



, Unkpapa formation in 388, 442 



, Whitewood limestone in... 382-384, 434-435 



Black Lick gap, Pennsylvania, Section 



near 58 



Black Mountain coal bed, Stratigraphic 



place of 43, 44, 45, 46, 47, 48 



Black river, New York, Course and general 



features of 237-238 



Blacksburg coal, Occurrence of, in West 



Virginia 163, 166 



. See also Campbell Creek coal beds. 



Blackwater gorge, West Virginia, Section 



in 190 



Block coal bed, Synonymy of 206 



Bloss coals, Stratigraphic place of 269 



Bloomington coal bed. Occurrence of, in 



Pennsylvania 54 



Blueberry mountain, New Hampshire, Ar- 



gillite at 465, 474 



, Section across 464 



Bolivar coal bed, Synonymy of 205 



Bolivia, High plateau of, Glaciation on, 



Abstract of paper on 584-586 



Bonair conglomerate, Correlation of 272 



in Alabama... 127, 128, 129, 130, 132, 133, 134 



Tennessee 114, 115, 116, 117, 118, 



119-120, 122 



Virginia , 147 



— sandstone in Tennessee 136-139, 141, 146 



in Virginia 151 



, Synonymyof 207 



. See also Raleigh sandstone. 



Boulder, Colorado, Cretaceous rocks near.. 430 



, Red beds near 419 



Bradford, Pennsylvania, Section near 55 



Bradley, F. H., cited on Pottsville forma- 

 tion 140. 143, 147, 148 



Branner, J. C, elected President of Society 531 

 Brand point, Nantucket, Changes in form 



of 519-520 



Brauns, , cited on " bar theory" of salt 



deposits 262 



Breathitt lentil in Kentucky,Occurrence of 99 

 Breislach, Scipio, Views of, on ore deposi- 

 tion 12 



Breithaupt, A., Reference to work of. 18 



Briceville shale, Horizon of 275 



, Occurrence of, in Tennessee 142 



Brier Hill coal bed, Synonymy of 206 



Bristol valley, New York, Features of 454 



Broad Top, Pennsylvania, Section at 49 



coal field, Pennsylvania, Pottsville for- 

 mation in 49-50 



