INDEX TO VOL. 2. 



655 



Page 

 Dana, J. D., cited on Appalachian structure 1G4 



crystalline rocks 390 



dynamic geology 10 



glaciation 268 



submarine channels 324 



traps 339 



Vermont geology 333 



Darton, N. H., Acknowledgments to 643 



— , cited on New Jersey geology 553 



traps 340 



— ; Mesozoic and Cenozoic formations of 



eastern Virginia and Maryland 431 



— ; On a jointed earth auger for geological 



exploration in soft deposits 638 



— , Photographs by 619 



— , Reference to sections by 157 



— , Title of paper by 614 



Darwin, Charles, Quotation from on dy- 

 namic geology 10 



Darwin, M. J., cited on antiquities 199 



"Dates," Definition of topographic 547 



— (The geological) of origin of certain forms 



on the Atlantic slope of the United 



States; W. M. Davis 541 



Daubree, Gr. A., Reference to work of. 218 



Davidson, George, cited on tidal currents.... 325 

 Davis, W. M., appointed on committee on 



photographs 616 



— , cited on Cretaceous peneplains 419 



topography 542 



— , on Committee on Photographs 2 



— , Record of discussion by 611, 613, 631 



— , Reference to work of 426 



— , Remarks on Mesozoic traps 348 



Piedmont structure 317 



the Triassic 430 



— , Titles of papers by 612, 614, 634 



— ; Tlie geological dates of origin of certain 

 topographic forms on the Atlantic slope 

 of the United States 541 



— and S. W. Loper; Two belts of fossilifer- 



ous black shale in the Triassic forma- 

 tion of Connecticut.. 415 



Dawson, G. M., cited on ancient beaches 474 



deformation in Canada 206 



field methods 183 



glacial history 266 



river courses 245 



glaciation in Canada 267 



the Peace river deposits 257 



" white silts" 249 



— ; Note on the geological structure of the 



Selkirk range 165 



— , Record of discussion by 614, 633, 634, 637 



— , Remarks on glacial lakes 275 



' the Shasta group 207 



— , Title of paper by 611 



Dawson, J. W.; Carboniferous fossils of New- 

 foundland 529 



— , Collections by 479 



— , Title of paper by 633 



Deformation and erosion. Relation of 234 



— , General modern '. 466 



— in the Atlantic slope 315, 448, 565 



Selkirk range 174 



Sierra Nevada •. 51 



Texas 518 



— of crystalline rocks 322 



Paleozoic rocks 156, 228 



the Appalachians 141 



Coast ranges 399 



Triassic 455, 418 



Degradation, Relation of, to deformation 234 



De la Beche, Henky, cited on the Carbonif- 

 erous rocks 17 



Delaware, Ancient forest in 640 



— river, Submarine channel of. 324 



Deltas, Ancient 247 



Denison, Definition of the 504 



Denudation, Subacrial 557 



Deposition, Conditions of, in Texas 518 



LXLV— Bull. Geol. Soc. Am., Vol. 2, 1890, 



Page 



Deposition, Conditions of the Triassic 454 



Deposits, Pleistocene, of Delaware 640 



Description of new species 42, 532 



Devonian rocks of Montana 351 



Ohio 32 



Diabase, Triassic 321 



Diablo, Mount, Geology of 383 



Diamonds (On the occurrence of) in Wiscon- 

 sin ; G. F. Kunz 638 



Dike, The Stamford 211 



— in the Sierra Nevada 51 



Diller, J. S., Acknowledgments to 642 



— .Collections by 204 



— ; First annual report of the Committee on 



Photographs 615 



— , on Committee on Photographs 2 



—, Photographs by 619 



— , Record of discussion by 634 



— , Remarks on the Shasta group 207 



D'Invillieks, E. v., Record of discussion 



by 632,633 



— ; The Phosphate deposits of the island of 



Navassa 75 



— , Title of paper by 632 



Discina magnifica, Description of. 46 



Disintegrxtion, Relation of, to schist 209 



— of Piedmont rocks 305 



Distribution of organisms 14 



Doe river. Rocks of 216 



Domes, Formation of. 69 



D'Orbigny, a., cited on Mesozoic rocks 11 



Douglass, E. M., Odometer devised by 182 



Drift, Glaciation at margin of. 457 



Duck Creek chalk, D»^finition of ; 504 



Dumble, E. T., Record of discussion by 613 



— , Remarks on Texas geology 527 



Duncan, P. M., cited on distribution of or- 

 ganisms 15 



Dutton, C. E., cited on the San Rafael swell.. 575 



—.Photographs by 622 



Dwight. W. B., Photographs by 616 



Eakins, L. G., Photographs by 630 



Earth auger (On a jointed) for geological 

 exploration in soft deposits; N. H. Dar- 

 ton 6.38 



Echo lake. Rocks of. 116 



Eldridge, G. H., Acknowledgments to 642 



— , Reference to worlc of 358, 361 



Election of Fellows l 



officers and fellows 609 



Elevation, Relation of, to glaciation 329 



Elevations in Canada 252. 255 



Ells, R. W.. Collections by 478 



Emerson, H. K.. cited on topography 551 



— ; On the Triassic of Massachusetts 451 



— , Record of discussion by 614, 631 



— . Remarks on Mesozoic traps 348 



the Triassic 430 



rock disintegration 223 



— , Title of paper by 634 



Emmons, E., cited on the Champlain group... 293 



— . Collections by 479 



Emmons, S. F., cited on Piedmont rocks 306 



Endlich, F. M., cited on rock disintegra- 

 tion 222 



England, Carboniferous rocks in 16 



Eocene rocks of Alabama 588 



California 393 



the Atlantic slope '. 434 



Erosion and deformation, relation of..... 149. 234 



— in the Sierra Nevada. 63 



Eruptive rocks of the Piedmont region 307 



Eutaw, Description of the 590 



Falkland islands. Physiography of the 14 



Faulting, Analysis of. 54 



Faults (The overthrust) of the southern 

 Appalachians; C. W. Hayes 141 



