INDEX TO VOLUME 23 



757 



Page 

 Sinclair, W. J.. Correlation and paleo- 



geography discussed by 8.") 



— ; Some (Jlaeial deposits east of Cody. 



Wyoming and their relation to the 

 Pleistocene erosional history of th(> 

 Rocky Mountain region. ....... 45, 7.'>1 



Siot'x Falls and vicinity, Bluff sec- 

 tions : 1:^0-144 



, Loesses of 158 



— , Pleistocene of 125-ir)4 



— . Table of elevations 1 ~u\ 



, Terrace or bench sections.. 144 



, Topography of 1 IM) 



— - — section, Pleistocene formation of 



the 711 



Ski or. Invention and explanation *()f 



term 11 (; 



Smith. I*iiilii' S. ; dlaciation in north- 

 western Alaska 44. r>{y.\-rti() 



Smith. W. S. Taxgiku. elected Coun- 

 cilor Cordilleran Section 70 



— ; Origin of the sandstone at the Stale 



prison near Carson City. Nevada.. . 7;> 



— . Orthoclase as a vein mineral dis- 

 cussed bv 7"' 



South American mammals ; W. B. Scott. 85 



fsoi'TH Dakota. Pleistocene of Sioux 



Falls and vicinity 125-154 



Spencer, J. W., Closing phase of .gla- 

 ciation in New York discussed by. 



47, 787 



— ; Covey Hill revisited... 30.471-475,721 



— , Discussion of Nebraskan and Kan- 



«an drifts bv 47 



— ; Hanging valleys and their pre-Gla- 

 cial equivalents in New York..... 



47. 477-485 



— . Post-Glacial erosion and oxidation 



discussed by 47, 789 



— , Stability of the Atlantic coast dis- 

 cussed by 40. 741 



Spurr. .T. E. ; luA-estigation of the Me- 



sahi ores 328 



Stanlev-Brown. .Tosepit. elected Editor 



Geological Society for 1912 2 



Stanton. T. ^V. ; Age of Yukon-Alaska 



fossils 887 



— ; Fossiliferous conglomerates' dis- 



cusspd 1)V 88 



— quoted on Mancos and Mesaverde 



fauna 598 



Stauffer. CLIN.TON B. ; Oriskany sand- 

 stones of Ontario 88, 871-875 



Steep Rock Lake. Geology of : Andrew 



C. Lawson 8(1. 722 



-series. Fossils of lower limestone 



of ' 46. 728 



Stegosauria ; R. S. Lull 211 



Stegosaurus, Remarkable skeleton of . . 87 



Stephenson, L. W.. Reference to state- 

 ment made on coastal plain investi- 

 gations by t 82 



Stose, G. W., Delta deposits discussed 



by 48. 744 



— , Fossiliferous conglomerates discussed 



by 88 



Stratigraphic study of the Appala- 

 chians and central States witli ref- 

 erence to the occurrence of oil and 

 gas ; George IT. Ashley 87. 725 



Stratigraphy of the coal fields of 

 northern central New Mexico ; Wil- 

 lis T. Lee 571-080 



SuESS. Edtari). CouLn-atulatory cable- 

 gram at annual dinner sent to ... . 47 



— Secretary reports letters received in 



answer to cablegram to 47 



Sylvania sandstone, W. IL Sherzer 



quoted on 437 



Page 

 SvMi'osirM on ten years' progress in 

 veitebrate paleontology; R. S. Bass- 

 ler. Secretary .S5, 155-200 



TArtR. R. S., q\ioted on origin of the 



Great Lakes basin 479 



— and Lawrence Martin; Glacial de- 



posits of the continental type in 



Alaska .' . . 44, 729 



Tatonic question, Arthur Keith on new 



evidence on the 35, 720 



Tayl()r, F. B., Closing phase of glacla- 



tion in New York discus.sed by.... 47 

 — : Recent studies of the moraines of 



Ontario and western New York... 46 

 Temperatures in the United States, 



List of underground 50 



Tennessee (east). Onyx deposits in. 37,729 

 Term. An experiment in the invention 



of a 115 



Ter.ms over phrases. The advantage of. 112 

 Tkutiakies. Correlation of American.. 234 

 TEUTrARv and later formations, New 



Mexico and Colorado 607 



Quaternary geology (some) of 



westein Montana, northern Idaho, 



and eastern Washington ; Oscar H. 



llershey 75, 517-535 



— deposits in the Pacific coast and 



basin regions of North America, 



Correlation of the 74 



of Oahu ; C. H. Hitchcock 71 



— faunas of the .John Day region, Ref- 



erence to . 535 



— (the middle American), State of our 



knowledge of 82 



Theropoda ; R. S. Lull 208 



Todd. ,T. E. ; Pre-Wisconsin channels in 



southeastern South Dakota and 



northeastern Nebraska 46, 463-470 



— ; South Dakota Geological Survey, 



Reference to 126 



ToNOPAii, Nevada, Mineral associations 



at ,. 70 



ToVALANi;: and laicero : their structure 



and relations to other plateau 



plains of the desert ; Charles R. 



Keyes 50, 713-718 



— . Location of 715 



Time. I"\ W. ; Marine mammals.... 85,197 

 TvRitELL. .T. B.. (iiacial investigations in 



Minnesota in 1911 discussed by. 46,733 



Uinta Basin Eocene, Notes and slides of 



the 88 



T'luich. I]. O.. quoted on Caney shales 



of Oklahoma 458, 459 



— . The Medina of Ontario discussed by. 83 



— : The Ozarkian fauna 84 



Units of geological classification. Sug- 

 gestions as to definitions of terms 

 used in designating 71 



Upham. Warren, Glacial Investigations 

 in Minnesota in 1911 discussed bv. 



'46, 734 



Valleys and plains. Eastern Washing- 

 ton 533 



— . Clearwater country. Idaho 532 



Van Horn. V. R.. I'aragenesis of the 



Zeolites discussed by 38, 727 



NArciiAN. T. Wayland : Coastal plain 

 investigations conducted b.y the 

 (iiited States and State Geological 



Survevs 82 



— . D. F. MacDonald introduced by 82 



— , (Jeological section Isthmus of Pan- 

 ama discussed by 82 



