AMERICAN GEOLOGY INDEX. 



731 



rage. 

 Shepard, Charles U., on geology of upper - 



Illinois 340 



sketch of 711 



treatise on mineral- 

 ogy 227 



Shurnard, Benjamin F., assistant to Swallow 437 

 discovery of Permi- 

 an fossils 480 



geological survey of 



Texas 487 



sketch of 711 



work on Marcy ex- 

 pedition 435 



Shumard, G. G., report on Marcy expedition 434 

 work in the Red River dis- 

 trict 434 



on Pope expedition.. 444 



Shumard, G. G., assistant, survey of Texas. 488 



Sierra el Late 601 , 602 



Sierra la Sal 601 



Silliman, Benjamin, appointment at Yale . 215 

 on aqueo-igneous 



agencies 318 



cause of deluge 260, 



293, 316 



fossils in rocks 293 



Genesis and geol- 



Ogy 316-317 



geology of New Ha- 

 ven 224 



lead mines near 

 Northampton, 



Mass 223 



mineralogy of New 



Haven 216 



origin of the earth . 292 

 the Weston mete- 

 orite 216 



outlines of geology . . . 292 



sketch of 215,711 



Silliman, Benjamin, jr., on intrusive trap of 



Connecticut 389 



sketch of 711 



Silliman's Journal, founding of 228 



Silurian formations, unconformability of .. 488 



Sinks, Tiffin, assistant, survey of Kansas 527 



Sioux country, Warren expedition to 586 



Slates of Lake Superior, origin of 419 



Slaty cleavage, cause of 406, 494 



Smith, C. D., sketch of 711 



Smith, Eugene A., sketch of 711 



work in Alabama 565 



Smith, .1. Lawrence, sketch of 712 



Smith, T. P., on crystalline basalt 214 



Smith, William, first geological map 217 



Smithsonian Institution, organized 364 



Snake Hill, overturned folds of 277 



Society of American Naturalists and Geolo- 

 gists organized 364 



Soil fertility, views of Amos Eaton 300 



E. Emmons 432 



formation, views of J. Van Rensselaer 279 



Soils, analyses of, by Robert Peter 483 



origin of, by deSerra 224 



South Carolina, first geological survey of.. 387 

 Tuomey's final report on 



geology of 405-406 



Page. 



South Carolina, work of O. M. Lieber 444 



Ruffin and Tuo- 



mey 386-387 



Spencer, A. C, studies on origin of gneiss. 524 



Squire, Joseph, sketch of 712 



Stansbury, Howard, explorations in Utah.. 410 



Stanton, T. W., views on lignitic group 658 



State geological survey, first 233 



Steel, J. H., overturned folds of Snake Hill. 277 

 Stevens, R. P., geology of New York Island. 386 

 Stevenson, James, with Hayden survey.. 592,596 

 Stevenson, John J., assistant on geological 

 survey of Pennsyl- 

 vania 582 



geologist, Wheeler sur- 

 vey 616 



paleontological work in 



Pennsylvania 583 



sketch of 712 



views on Laramie 619 



lignitic group 652 

 Strong, E. A., assistant, survey of Michi- 

 gan 536 



Strong, Moses, assistant, survey of Wiscon- 

 sin 570,571 



Stucklc, Henry W., assistant, Hayden survey 599 

 Subsidence and deposition, views of W. B. 



Rogers and Louis Agassiz 508 



of Atlantic coast, views on.. 406,409 



Superimposed valleys, term first used 567 



Swallow, George C, geological survey of 



Kansas 527 



geological survey of 



Missouri 437 



on Permian fossils in 



Kansas 485 



sketch of 527,712 



survey of southwest 

 branch of Pacific' 



Railroad 456 



Sweet, E. T., assistant, survey of Wisconsin. 571 



Taconic, name first proposed 661 



question 659 



rocks 472 



system 281 



Taggert, W. R., geologist, Hayden geological 



survey 596, 599 



Tappan, Benjamin, ideas on drift 286 



Taylor, Richard C, model of coal field 365 



sketchof 712 



Tennessee, geological survey of 1831-1835 .. 303 

 Safford's final report on geology 



of 534 



sketch of geology, by R. O. Cur- 



rey 458 



unconformability between Si- 

 lurian formations 488 



work of J. M. Safford 456 



Gerard Troost 366 



Ternary, name proposed by H. H. Hayden. 259 



Tertiary, T. A. Conrad's views on) 320 



deposits of Atlantic coast, by 



Lardner Vanuxem 288 



North America 306 



Tuomey's views on 407 



of North America, by Conrad 396 



