INDEX TO VOLUME 21 



823 



,r^ Page 



Whirlpool drift, Correlation Scarboro 



heights with 438 



— Saint Davids canyon, Section of 



drift in 436 



gorge, Neighboring drift de- 

 posits 437 



.Niagara river. Features of. 434 



. Pleistocene deposits of 435 



valley, Niagara river. Studies 



_ of 433 



White, David, Discussion on micro- 

 scopic study of certain coals in re- 

 lation to the sapropelic hypothesis. 33 



— elected Third Vice-President Paleon- 



tological Society 71 



— ; Permian floras in the western "red 



beds" 75 



— ; Regional devolatilization of coal. 



(Abstract.) 33, 788 



— and T. W. Stanton ; Paleontologic 



evidences of climate 73 



WhitEj I. C, Discussion on Burning 

 springs, volcano anticline, in We^'t 

 Virginia 2;^, 769 



Permo-carbonic conglomerate 



of south Brazil 8 ', 779 



White, W. P., Diopside and its reb 

 tions to calcium and magnesiur 

 metasilicates. Reference to 166 



— , Melting-point determination an 



methods. Reference to 159 



White Pine range. Geologic cross-se< 



tion of the, Figure showing 551 



Whiteaves, J. F., cited on a Ricl 

 mondian fauna from Stony moui'- 

 tain, Manitoba 700 



Whitfield, R. P., on Committee on 



Geological Magazine 743 



Wilkes, Lieut. Charles. Reference to 



his Antarctic expedition 28 



WiLKiNS, D. F. H., Occurrence of in- 

 terglacial beds in Canada, first an- 

 nounced by 435 



Willard thrust, Ogden canyon, Descrip- 

 tion of 536 



Willard, Utah, Section of Wasatch 



range at 534 



Williams, Henry S. ; Migration and 



the shifting of Devonian faunas. . 76. 



285-204 



— on committee Cincinnati meeting, 



1881 742 



— ; Persistence of fluctuating variations 



as illustrated by the fossil genus 

 Rhipidomella 76, 296-312 



— and Arthur Uollick ; Migration. . . 73 

 Williamson division of the New York 



Clinton, Reference to 715 



Willis, Bailey, Discussion on flow of 



diabase 24 



Permo-carbonic conglomerates 



of south Brazil 30, 779 



volcanic action 23 



— quoted on tangential crustal move- 



ments in Asia 225 



Willis^ Blackwelder, and Sargent, 

 Reference to their researches in 



China 639 



WiLLiSTON, S. W. ; Cacops, Desmospon- 

 dylus ; New genera of Permian ver- 

 tebrates 250-283 



— , Discussion on the structure of the 



Sauropod Dinosaurs 74 



— elected Second Vice-President Pale- 



ontological Society, 1910 72 



— ; New genus of Permian reptile 75, 



250-28:} 



— ; Paleontology of man 74 



— ; Principal character of the Chely- 



drosauria, a sub-order of Temno's- 

 pondyte Amphibians from ihe 

 Texas Permian 75 



Page 

 Willi STON, S. W. ; Varanosaurus spe- 

 cies, a Permian Pelycosaur 74 



Wilson^ A. W. G., Reference to paper 

 on "Cuspate forelands along the 



bay of Quinte" of 603 



— , Theory of formation of beach cusps . 618 

 Wilsonia grosvenori (Hall), Figure 



showing and description of 511 



— Kayser 510 



WiNCHELL, Alexander, Chairman of 



meeting to discuss question of or- 

 ganizing geological society 743 



— , Reference to sketch of Society pre- 

 pared by 741 



WiNCHELL, N. H., cited on effects of 



wind scour in the Dakotas 584 



origin of eskers 418 



processes of drift transporta- 

 tion and deposition 430 



— on committee Cincinnati meeting, 



1881 742 



— and C. H. Hitchcock, Call published 



in American Geologist, June, 1888, 



by 745 



Winds in arid regions, EflEect of.. 573,574 



Winnipeg, Manitoba, Birds hill : An 



esker near 26, 407-432 



Wisconsin (pre-) ice invasion. Occur- 

 rence of 752 



Witter, F. M., Fragment of a molar of 



Elephas primigenius obtained by.. 139 



Wolff, J. E., Discussion on the com- 

 plex of alkaline igneous rocks. 32, 785 



Wood, Elvira : Phylogeny of certain 



Cerithiidae 76 



Wood, H. O. ; California earthquakes — 

 A synthetic study of the recorded 

 shocks. (Abstract.) 791 



Woodward, R. S., cited on the form and 



position of the sealevel 240 



Wood WORTH, .7. B., elected Councilor. . 3 



— ; Permo-carbonic conglomerates of 

 • south Brazil. (Abstract.) 30,779 



Wright, Charles Will, elected Fellow 4 



Wright, Fred E.. Discussion on the 



complex of alkaline igneous rocks. 32 



volcanic action 23 



— ; Geologic thermometry. (Abstract.) 



32, 783 

 — , J. K. Clement, and E. T. Allen, 

 Minerals of the composition MgSiO,, 

 Reference to 166 



— ; Obsidian from Hrafntinnuhryggur, 



Iceland. (Abstract.) 32,784 



— , Some effects of glacier action in Ice- 

 land by 20, 717-730 



— ^ and C. W.. cited on recession of 



Muir glacier 368 



Wyoming. Laramie flora of southwest- 

 ern 75 



— , Natural bridge at Le Perle creek. . . 320 



Yakutat bay. Alaska, Map showing 



faults, uplifts, and depressions of. 360 



.Map showing relation of moun- 

 tain axes to earthquake origin in. . 343 



— ■ — region. Earthquake of September, 



1899 339-406 



— region. Topography and geology of.. 344 



— village, Alaska, Map of harbor of . . . 363 

 Yellowstone national park. Natural 



bridge across Bridge creek in 322 



— natural bridge, Description of and 



view showing, plate 21 322. 323 



Yosemite vallev. Cliff sculpture of the. 



20, 759 

 Zaphrentis gihsoni ?. Fossil of Wasatch 



region . 530 



Zirkel, Ferdinand, elected Correspond- 

 ent 4 



ZiTTEL, Karl, cited on eolian sands. . . . 640 

 Zones, Watkins Glen-Catatonk quad- 

 rangles fossiliferous 287, 288 



