INDEX TO VOLUME 3 1 



449 



Page 

 tion with the Sixteenth Annual 

 Meeting of the Cordilleran Section, 

 University of California and Stan- 

 ford University, August 3. 4, and 5, 

 1915 177 



; I'roceediugs of the Seventeenth 



Annual Meeting of the Cordilleran 

 Section, held at San Diego, Califor- 

 nia. August 10. 1010 185 



Teaching of geology and paleontology. 



Symposium on the 149 



— as related to research; H. E. 



Gregory 357 



historical geology and paleontol- 

 ogy as fundamental to history, the 

 humanities and science ; J. C. Mer- 

 riam 149 



invertebrate paleontology ; S. Wel- 



ler 150 



paleobotany ; E. W. Berry 150 



Tectonic conditions accompanying in- 

 trusion of basic and ultra-basic 

 igneous rocks: H. N. Benson 144 



Tenxessek. Middle Ordovician of 137 



Teratorxis, Relationship to other re- 

 ported birds of 185 



Ternary system Fe^Og — SOj — H^O 161 



Tertiary artiodactvls from the Marsh 



collection : R. S. Lull 224 



— formations of Porto Rico ; B. Hub- 



bard 135 



Texas, New specimen of Pleistocene 



bear from 224 



— , Pisolites at San Antonio 182 



— • Tertiary sands 182 



The "good use" of the term "fossil" ; 



R. M. Field 204 



— limited effective vertical range of the 



desert and sand-blast, based on ob- 

 servations made in the Libyan des- 

 ert and in the Anglo-Egvptian Su- 

 dan ; W. H. Hobbs 181 



— problem of the Texas Tertiary sands ; 



E. T. Dumble 182 



— wonders of Bryce Canyon, Utah ; 



J. W. Pack 122 



— teaching of historical geology ; H. F. 



Cleland 375 



as a factor conditioning 



research ; .1. C. Merriam 339 



paleobotany ; E. W. Berry 389 



— ternary system Fe^Oj — SO3 — H^O ; 



H. E. Merwin and E. Posnjak 161 



— value of terrestrial organisms In the 



interpretation of sediments ; J. P. 

 Buwalda 123 



Thomas, A. O. ; Echinoderms of the 



Iowa Devonian 211 



Thwaites, F. T., and W. H. Twexho- 

 FEL ; Windrow formation, an up- 

 land gravel formation of the drift- 

 less and adjacent areas of the upper 

 Mississippi Valley 133 



Till arglllltes (pellodites), Pre-Cam- 

 brian, Permian, and Pleistocene ; 

 A. C. Lane 125 



Todd, J. E. ; Certain diverse interpreta- 

 tions of Pleistocene in the Dakotas 13^ 



TOLMAN, C. F.. Jr., Discussion of ore 



enrichment by 180 



— the lithosphere by 188 



wind sculpturing by 179 



— ; Foothill copper belt of the Sierra 



Nevada Mountains, California 189 



ruKASiUER's report 8 



of the Paleontologlcal Society.... 201 



TuiLOBiTES as ancestors ; P. E. Ray- 

 mond 214 



Page 

 Troxell, E. L. ; Small mammals in the 

 Marsh collection at Yale Univer- 

 sity 223 



— ; Study of the entelodonts 223 



Tufas of Lake Lahontan 179 



Tuff in the Ouachita Mountain range. 125 



Twexhofel, W. H., and F. T. Thwaites ; 



Windrow formation, an upland 



gravel formation of the driftless 



and adjacent areas of the upper 



Mississippi Valley 133 



— , Discussion of Morrison formation by 135 

 — ; Revision of the Anticosti section... 209 

 Type section of the Morrison forma- 

 tion ; W. T. Lee 135 



Types of Rocky Mountain structure in 

 southeastern Idaho ; G. R. Mans- 

 field 126 



Ulrich, E. O. ; Cambrian formations 

 and faunas of the Mississippi Val- 

 ley 214 



UxiCLiNE : A term proposed for mono- 

 clinal ridges of erosion ; A. W. Gra- 

 bau 153 



UphAiM, W. ; Drumlins at Lake Placid. 128 



Use of geology on the western front ; 



A. H. Brooks 153 



Utah, High plateaus of 151 



— , Mountain Lake mine near Salt Lake 



City 162 



— , Wonders of Bryce Canyon 122 



Value and use of stages of development 



in teaching ; R. T. Jackson 150 



— paleontol- 

 ogy ; R. T. Jackson 395 



— - of foraminifera in stratigraphic cor- 

 relation ; J, A. Cushman 205 



Van Hise, C. R., Bibliography of 107 



— -, Memorial of 100 



Vaughax, T. W. ; Arrangements for ad- 

 ditional geological surveys in the 



West Indies 139 



— , Discussion of Morrison formation by 136 

 — ; Features of the shifts of land and 

 sea-levels in the Atlantic and Gulf 

 Coastal Plain during Pleistocene 



and post-Pleistocene time 113 



— ; Geology and structure of the San 



Bernardino Mountain 188 



— - ; Researches in sedimentation. . . 123, 401 

 — ; Stratigraphy of the Virgin Islands 

 of the United States and of Cule- 



bra and Vieques islands 216 



Vesuvius in 1919, Conditions at 158 



Vieques Islands, Stratigraphy of 216 



Vixsox, A. E. ; Some interesting changes 



in the composition of the Salton Sea 182 



Virginia, Middle Ordovician of 137 



— , Oriskany and Helderberg in 137 



ViRGix Islands, Stratigraphy of the... 216 

 VoLCAXOES, Calcination 115 



Walcott, W. D. ; Sponges of the Middle 



Cambrian 222 



Waxdke, a. ; Geology of the Ports- 

 mouth Basin, Maine and New Hamp- 

 shire 138 



Waring, A. C. ; Geology and mineral re- 

 sources of Inyo County, California 189 



— , Memorial on 203 



Washixgtox, Cross-section of Cascade 

 Mountains and Puget Sound Basin 

 In 189 



— , Geology of portions of western 182 



Washixotox, H. S. ; Conditions at Ve- 

 suvius In 1919 158 



XXXII— Bull. Geol. Soc. A.m., Vol. 31, 1919 



