INDEX TO VOLUME 27 



735 



Page 

 Scour of the Saint Lawrence River and 



lowering of Lake Ontario ; J. W. 



Spencer 79 



Sears, J. H., cited on augite syenites. . 208 

 Section of Invertebrate and General 



Paleontology 153 



Vertebrate Paleontology 149 



Secretary's report 5 



— ■■ — -of Paleontological Society. 142 



Sederholm, , cited on Bothnian 



slates 189 



Upper Cambrian rocks 557 



Sedimentary method in stratigraphy.. 49S 



— rocks, Triassic 624 



— succession in southern New Mexico ; 



N. H. Darton 86 



Sedimentation along the Gulf Coast of 



the United States; E. W. Shaw. . . 71 

 Sediments in relation to landslides.... 58 



— , Modes of origin of 352 



Sellards, B. H. ; Dead lake of the Chi- 



pola River, Florida 109 



Selwyn, Alfred R. G., Reference to re- 

 port on exploration in British Co- 

 lumbia of 716 



Sexton Creek limestone 313 



Shaler memorial voyage of 1914 re- 

 ferred to by W. M. Davis 46 



Shales, Age of Ohio and Chattauooga. 465 



— of Green River formation, Oil-yield- 



ing 159 



Shastan time, Discussion of 509 



Shaw, E. W. ; Sedimentation along the 



Gulf coast of the United States ... 71 

 Sherzer, W. H., cited on article on Up- 

 per Siluric strata 72-73, 75-77 



Shetland Islands, Old Red Sandstone 



of 37S 



Shimek, B. ; Types of loess in the Mis- 

 sissippi Valley 82 



Shimer, H. W„ and C. H. Clapp, Ref- 

 erence to "The -Sutton Jurassic of 

 the Vancouver group. Vancouver 



Island," of 709 



Sierra-Nevada, Tertiary-Quaternary oro- 



genic history of 46 



Silicate melts, Diffusion in 4S 



Silurian formations of southeastern 

 New York, New Jersey, and Penn- 

 sylvania ; Charles Schuchert 531 



— sections. The 540 



— strata of the Anticosti embayment 



correlated with Alexandrian rocks. 312 



— system of Maryland ; C. K. Swartz 



and W. F. Prouty 89 



Silurian-Devonian climates. Influence 



on air-breathing vertebrates of . . . . 387 



■ — vertebrates of 40 



Silurian-Downtonian formations. Stra- 

 tigraphy of uppermost" 364 



Silurian-Ordovician boundary, Incon- 

 sistencies in drawing the 463 



Silvestri, , cited on Kilauean rock 



analysis 54 



Sinclair, Joseph H. ; Cretaceous of Al- 

 berta, Canada 85, 673 



Sinclair, W. J., acted as secretary at 

 meeting of Vertebrate Paleontology 



Section 149 



Skeleton of Blcustocerus pampceus (fos- 

 sil deer) 153 



Canis dims, Mounted 153 



Skeletons of Diplodocus and Apato- 

 saurus in the Carnegie Museum; 



W. J. Holland 153 



Skull elements in the Tetrapoda 152 



■ — -structure of Thalattosaurus 171 



Slates of Permocarboniferous a g e, 



Banded glacial 110 



Page 

 Slipper, S. E., cited on modifications 



necessary in Cairnes' map 676 



Sloths, Posterior foot of Mylodont. . . . 170 

 Smith, J. P., cited on coral fauna of 



Lower Noric age 709 



corals of Lower Noric age.... 700 



— - — - — "Cordilleran Revolution" 508 



— ■ fossils from Nevada of the Mid- 

 dle Triassic 705 



studies and correlations of Tri- 

 assic rocks of California, Nevada, 



and Oregon 687 



Triassic and Jurassic faunas . . 500 



— west coast Triassic 505, 507 



— ; Climatic zones in the Pliocene of 



the Pacific coast 172 



— , Reference to "The Middle Triassic 

 marine invertebrate faunas of North 



America" of 705 



"The occurrence of coral reefs 



in the Triassic of North America" 



of 699-700, 709 



— , Remarks on Monotis fossil form by. 173 



— , Species identified by 680 



— , Thanks rendered to 679 



Smith, Philip S. ; Geology of the Lake 



Iditarod region, Alaska 114 



— , Reference to "Notes on the geology 



of Gravina Island, Alaska." of 700 



"The Noatak - Kobuk region, 



Alaska." 704 



Smith, William, cited on determinable 



stratigraphy 492 



stratigraphic geology 177 



Smoker given by Geological Society of 



Washington 154 



— for Geological and Paleontological 



Societies 82 



Smyth, C. II., Jr., Analyses by 215 



— cited <m derivation of alkali-rich 



rocks 329 



svenite and granite of Adiron- 



dacks 213 



Smyth, H. L., cited on Keweenaw series 95 

 Soil characteristics. Geologic relation 



of 114 



Some factors which affect the deposition 

 of calcium carbonate ; John John- 

 son 49 



— features of the Kansan drift in 



southern Iowa ; George F. Kay .... 115 



— fossil algffi from the oil-yielding 



shales of the Green River formation 

 of Colorado and Utah ; Charles A. 



Davis 159 



-littoral and sublittoral physiographic 

 features of the Virgin and north- 

 ern Leeward Islands and their bear- 

 ing on the coral-reef problem ; 

 Thomas Wayland Vaughan 41 



— structural features in the Green 



Mountains belt of rocks ; C. E. 

 Gordon 101 



Susman, R. B., and J. C. Hostetter ; 

 Ferrous iron content and magnetic 

 properties of the natural oxides of 

 iron as an index to their origin and 

 history 00 



South Dakota, Precambrian structure 



of Black Hills 106 



Specific weight of drill cores ; Alfred 



C. Lane 49 



Spencer, A. C, and F. C. Schrader. 

 Reference to "The geology and min- 

 eral resources of a portion of the 

 Copper River district. Alaska." of.. 693 



Spencer, J. W., cited on Iroquois shore. 242 



— ; Recession of Niagara Falls rerneas- 



ured in 1914 7S 



— -, Remarks on New England terraces 



by G6 



