580 



BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 



Page 



Sac limestone, Missouri, Thickness of. 273 



Safford, James M. ; Classification of the geo- 

 logical formations of Tennessee 10-14 



— ; Horizons of phosphate rock in Tennes- 

 see 14-15 



Saint CLAiRlimestone, Arkansas, faunas of.. 288 



, Thickness of. 274 



Saint Elias range, Alaska, Character and 



extent of 255 



Saint Joe marble, Arkansas, Position and 



thickness of. 274 



Salisbury, R. D., cited on Calhoun's obser- 

 vations of the relief of the Great Plains.. 310 



— , Photographs by, Catalog of 415 



— , Work of 104 



Saltsburg sandstone, Conemaugh forma- 

 tion of Maryland, Character, occurrence, 



and thickness of 225 



Samarcand, Loess exposure near 138 



Sand dunes, Photographs of, Catalog of. 468 



Sandy point, Virginia, Record of well at 210 



San Francisco bay, California, Geological 



section of Coast ranges near 545 



meeting, Cordilleran section, Register 



of. 546 



San Miguel cherts, California, Character 



and thickness of 545 



San Pablo formation, California, Character 



and thickness of : 545 



Santo Agostinho, cape, Brazil, granite at... 60-62 



Santo Aleixo, Brazil, Rocks at 62-63 



Santa Rita, Brazil, Stratigraphy in rail- 

 way cuts east of. 54 



Sao Caetano, Limestone at, Analysis of 82 



Sao Francisco railway, Elevations of sta- 

 tions along 66-67 



, Geology along 68-76 



, Topography along 67-68 71-72 



Sari.e, C. J., Record of remarks by 530 



Sausolito cherts, California, Character and 



thickness of 545 



Sayers lark, Age of basin of 303 



, Origin of basin of. ; 298-299 



, Relation of Helen mine iron ore to 



basin of 300-303 



, Topography of region around 295-597 



Schistosity, cleavage, and jointing, Photo- 

 graphs of, Catalog of 4i>8-469 



Schrader, F. C, cited on geologic forma- 

 tions in Copper River district 264 



— , elected Fellow 1 



— ; Geological section of the Rocky Moun 



tains in northern Alaska 233-252 



— , Photographs by, Catalog of 383-385 



— , Title of paper by 538 



— , Work of. 108 



Schuchert, Charles, cited on Leiorhyncus 



laura 169 



— , Fossils identified by 241, 243, 259 



— , quoted on Alaskan fossils 243 



fossils from Dirt glacier, Alaska 258,259 



Scott, W. B., Record of remarks by 530 



— , Work of Ill 



Secretary, Election of 486 



— , Report of.„ 478-481 



Section, Vertical, across Atlantic coastal 



plain 212 



Sections, Columnar, Coal Measures of Mary- 

 land 219, 221, 223, 226, 230 



— , Geological : Alaska, northern 233 



: Arundel formation 197 



: Brazil, Along Conde d'Eu railway 52 



: Canada, Hamilton group in Ontario. 150-159 



, Near Helen mine 297 



, Railway cut near Thedford, Onta- 

 rio 151, 152 



: Middle Coast ranges of California. 544-545 



: Missouri 272,273,274 



: Montana, Front ranges of the Rocky 



mountains of 335 



Page 

 Sections, Geological : Patapsco formation.... 200 



: Patuxent formation 194 



: Raritan formation 203-204 



Sergipe, Brazil, Fossils found at 47 



Sewanee conglomerate, Geologic place of... 13 

 Sewickley coals, limestone, and sandstone, 

 Monongahela formation of Maryland, 

 Character, occurrence, and thickness 



of. 228-229 



Shaler, N. S., Work of 107, 109 



— , and J. B. Woodworth, cited on the New- 

 ark system 142,146 



, quoted on the Newark system 140 



Sharon coal, Pottsville formation, charac- 

 ter and thickness of 219 



— sandstone, Character and thickness of. 218-219 

 Shasta-Chico formation, California, Charac- 

 ter and thickness of. 54 



Shattuck, G. B., Work of 104 



Shaw, James, AVorthen, A. H., and, cited on 



Spirifer capax beds 281 



Shore cliffs, Catalog of photographs of... 469-470 



Shoreline, Effect of, on waves 528 



Shepard, E. M., cited on southwest Mis- 

 souri section 273 



— , elected Fellow 2 



Sheppard quartzite, Montana, Character 



and occurrence of 316, 318, 324 



Shimer, Hervey W., and Grabau, A, W. ; 

 Hamilton group of Thedford, Onta- 

 rio 149-186 



, Title of paper by 518 



Shiwantse, China, Loess deposits at 132, 134 



Shumard, B. F., cited on fossils of the 



Ozark region, 287 



Siderite, Analyses of 302 



Sierra Nevada, Post-Tertiary elevation 



of. 540-541 



Silurian period, Geologic formations of, in 

 Tennessee, Table showing 11 



— rocks, Alaska, northern, Character and 



occurrence of. < 238-240 



— — , South Dakota, Occurrence of 28 



Sink-holes, Photographs of, Catalog of. 470 



Siyeh limestone, Montana, Character and 



occurrence of 316, 318, 323, 324 



, Concretions in 318 



Skajit formation, Alaska, Age of 239 



, Character and occurrence of 238-239 



-— , Structure of 239 



Smallwood, Martin, Hopkins, T. C, and ; 



Some anticlinal folds [abstract] 530 



Smith, E. A., Name "Crystallines period'' 



suggested by 11 



— , Work of 105 



Smith, G. O., cited on ancient volcanic rocks 



in New England 370 



— , Work of 107 



Smith, J. P., cited on fossil from Parahyba.. 43 



— , Work of. Ill 



Smith, W. S. T, Work of 106 



Snake River plains, Idaho, Geology of. 527 



Snow Creek phosphate, Tennessee, Origin 



of 15 



Sollas, W. J., quoted on the field of geologic 



research 117 



Solvents, Action of !.... 299-300 



South Dakota, Geological work in 102, 106 



— , Hydrographic historv of 27-40 



— , Photographs from. Catalog of 429, 430-432 



— , Maps of, showing Pleistocene condi- 

 tions 27, 34, 37 



— , Miocene lake in 29 



— , Streams in, Characters and courses of.. 30-40 

 Spencer, A. C, cited on geologic formations 



in Copper River district 264 



— , Work of 108 



Spheroidal structure, Photographs of, Cata- 

 log of 470 



Spirifer capax beds, Iowa, Position and 

 character of. 280-281 



