INDEX TO VOLUME 12 



535 



Page 

 Saint Croix rivek, Tributaries of, from Min- 

 nesota 15 



, Tributaries of, from Wisconsin 15 



— VALLEY, Duration of the iuterglacial stage 



in 19 



of Minnesota and Wisconsin, Pleisto- 

 cene ice and river erosion in 13 



, Preglacial rivers in 16 



, Terraces along 19 



Saint Lofis glacial lake, Position and ex- 

 tent of. 121 



— RIVER, Keewatin rocks on 344^ 346 



Sand concretions, Crystallography of. .' 170 



, Mechanical analyses of 170 



, Microscopy of 170 



, Views showing... 165, 166, 167, 168, I69", 170 



— crystals and their relations to certain 



concretionary forms ; E. H. Barbour 165 



— ISLAND, lake Superior, Lake Superior 



sandstone at I99 



, Tombolo at 212 



Saxicava sands, Fossils of 131 



, Occurrence and character of. 131 



ScHELL Creek range, Nevada, Structure of... 226 



ScHRADER, F. C, Photographs by 468 



ScHUCHERT, Charles, Fossils identified 



by 442, 444 



Scott, W. B., Title of paper by 491 



Section of Knoydart formation along Mc- 



Arras brook, Canada 306 



well near Enid, Oklahoma 3 



— (diagrammatic), from Rigaud to Gren- 



ville, Canada 393 



Sections, Geologic, at South Tunnel and 



Bledsoe, Tennessee 397 



Secretary, Report of. 447 



— , H. L. Fairchild elected 453 



Selkirk mountains, Cambrian rocks in 66 



— series. Occurrence and character of. 66 



Selwyn, a. R. C, cited on Archean rocks in 



Canada 63 



Cambrian rocks of southern British 



Columbia 68 



Marble Canyon limestone 70 



— , Explorations in British Columbia by.'..... 59 

 Sexe, S. a., cited on giants' kettles in Nor- 

 way and Sweden 39 



Shafer glacial lake. Position and extent 



of 119 



Shakopee glacial lake. Elevation of.; 117 



, Position and extent of 117 



Shaler, N. S. ; Broad valleys of the Cordil- 

 leras 271 



— cited on theory of peneplains 481 



— , Record of remarks by 472, 473, 479, 483 



— , Title of paper by 492 



Shallow seas. Evidences of, in southern 



Arizona 493 



Shattuck, G. B., Title of paper by 464 



Shawangunk grit. Unconformity between 



Hudson River shale and 164 



Shell-bearing gravels. Occurrence of, in 



Ontario, Canada 132 



Shell creek, Flood-relief channel of the 



Platte and, in eastern Nebraska 488 



Shoals, Lake Superior region, features ot... 213 

 Shuswap series, in Rocky Mountain region. 



Description of. 63 



, Resemblance between Grenville series 



and 63 



, Strike and foliation in 63 



, Thickness of 64 



Sierra Madre near'Pasadena [abstract] ; 



E. W. Claypole 494 



Sierra Nevada, Post-Jurassic movements 



in the 243 



Silurian formations, Age of Cincinnati anti- 

 cline evidenced by 416 



, Character and thickness of, in Ten- 

 nessee 401 



Page 

 Silurian formations. Subdivisions of, in 



Kentucky and Tennessee 397 



, Variations in thickness of, in Tennes- 

 see 414 



— period. Physical history of the Rocky 



Mountain region in 85 



— rocks. Contact of Devonian and, in Nova 



Scotia .. 302 



, Exposures of, in southern Kentucky... 421 



in Rocky Mountain region of Canada, 



Occurrence of. 68 



, Moydart formation, plate showing 301 



, Sections of, in Tennessee 397 



— and Devonian limestones of Tennessee 



and Kentucky ; August F. Foerste 395 



Siluro-Devonian boundary. Points involved 

 in question of 472 



— contact. Erosion at, in Tennessee and 



■ Kentucky....*. 430 



— unconformity in Tennessee, Evidence 



of 408 



Silverton, Colorado, Andesitic rocks near... 4 

 Skagit beds. Occurrence and thickness of.. 75 

 Skeena beds, Occurrence and thickness of.. 75 

 Sketch of the pedologieal geology of Cali- 

 fornia [abstract] ; E. W. Hilgard 499 



Smith, , quoted on fossils of the Arkan- 

 sas Coal Measures 183 



Smith, G. O., Record of remarks by 461 



— and G. "W. Tower, cited on structure of 



the Tintic range 219 



Smith, T. Guilford, Record of address of 



welcome by 464 



Smith, W. A., Analyses made under direc- 

 tion of. 7 



Smith, W. S. Tangier, cited on theory of 



peneplains 481 



Smith-Woodward, A., quoted on the Me- 



Arras Brook specimens 311 



— , Reference to identification of fossils by.. 310 



Smyth, C. H., cited on rock weathering... 106 



Snake range, Nevada, Structure of. 227 



— RIVER, Minnesota, Erosion on 315 



, Keewatin rocks on 355 



, Keweenawan rocks along 327 



, Section on 342 



Soils, Color variation of. 104 



— , Conditions of, in California 499 



Sooke beds. Age of 83 



Spencer, J. W., cited on high-level beaches 



in southern Ontario 1,38 



Springer, Frank, Fossils identified by 444 



Spring Mountain range, Nevada, Structure 

 of. 235 



Spurr, J. E., cited on age of Keewatin rocks 

 of Minnesota 344 



Thomson series at Little Falls, 



Minnesota 369 



relation of Keewatin and Mesabi 



rocks 371 



structure of the Grapevine and Fu- 

 neral ranges 239 



— ; Origin and structure of the Basin ranges. 217 



— quoted on age of Saint Louis shales of 



Minnesota 370 



cleavage in sehistosity of Keewatin 



rocks 370 



— , Title of paper by 462 



Stacks, Wisconsin shore of lake Superior, 



Formation of 216 



Stanley-Brown, J., Editor's report by 451 



— elected Editor 454 



— made life member on recommendation 



of Council 480 



Staurolitic biotite schists, Keewatin series 



of Minnesota, Occurrence and charac- . 



ter of. :. 365 



Stevenson, J. J., cited on Coal Measures of 



Indian Territory 181 



Coal Measures sections 178 



