396 



INDEX 



Rhamphorhyncus, 263, 271-272. 



Rhinoceros, 4. 



Rhizocarps, 133. 



Rhizopods, 13, 14. 



Rhode Island, 163, 187. 



Ries, H., 164. 



Ripley formation, 237, 241-242. 



Rivet, E., 376. 



Rock scale, 31. 



Rocky Mountain district, 50, 53, 58, 



63, 104, 148, 163, 195, 204, 220, 



221, 240, 242, 246, 249, 276, 277, 



289, 301-304. 

 Rocky Mountain Revolution, 248- 



250, 277. 

 Rodents, 319, 325, 371. 

 Rondout formation, 103, 110. 

 Ruedemann, R., 91, 92, 95, 96, 116. 

 Russell, I. C, 367. 

 Russia, 68, 111, 132, 152, 167, 180, 



188, 210, 254, 368. 



Salamanders, 13, 22, 317. 



Salina formation, 103, 106-108, 110, 



112. 

 Salisbury, R. D., 29, 330. 

 Salisbury and Chamberlin (see Cham- 



berlin and Salisbmy)- 

 Salisbury and Willis, 33. 

 Salt, 106, 110, 112, 153, 188, 190. 

 Salter, J. W., 96. 

 San Diego formation, 282. 

 Sandstone quarries, 69, 112, 212. 

 San Juan formation, 282, 287. 

 San Lorenzo formation, 282. 

 San Pablo formation, 282. 

 Santa Margarita formation, 282. 

 Saratogan series, 57. 

 Sardinia, 67. 



Sauropods, 263, 266-268. 

 Say, 114. 



Scandinavia, 45, 53, 68, 111, 254, 368. 

 Schoharie formation, 120, 122. 

 Schuchert, C, 15, 16, 18, 19, 20, 30, 



54, 126, 175, 196, 232. 

 Schuchert and Pirsson, 33. 

 Scorpions, 13, 21, 117-118, 136, 175- 



176. 



Scotland, 45, 53, 152, 157, 307. 



Scott, D. H., 13, 174. 



Scott, W. B., 6, 7, 8, 33, 76, 101, 125, 

 155, 192, 213, 233, 267, 324, 369, 

 370. 



Sea-cucumbers, 13, 18, 73. 



Sea-mosses, 13. 



Sea transgressions, 28; retrogres- 

 sions, 28. 



Sea-urchins, 13, 17, 18, 115, 134. 



Sea-weeds, 91, 113, 132-133, 212. 



Sedgwick, A., 56, 77, 120. 



Seed-ferns (see also Cycadofilices), 

 11, 133, 154, 172-174. 



Selachians (see also Sharks), 138- 

 139, 157, 215, 232. 



Selma formation, 237, 241, 248. 



Senecan series, 120, 124; time, 130. 



Senonian formation, 237. 



Sequoias, 256, 313. 



Series, 31. 



Sharks (see also Selachians), 119, 

 138-139, 157, 261, 316-317. 



Shattuck, G. B., 292, 365. 



Shawangunk formation, 103, 106- 

 108; Range, 106, 108. 



Shimer, H. W., 14, 17, 18, 21, 34, 73, 

 234, 257, 318. 



Shumard, 155. 



Siberia, 68, 89, 90, 132, 200, 210, 

 225, 255, 371. 



Sierra Nevada Mountains, 220, 223. 

 277, 289, 300, 301, 304, 305. 



Sierra Nevada Revolution, 223, 277. 



Sigillarians, 170-171, 173, 212. 



Silurian period, 32, 103-119; origin 

 of name, 103; subdivisions, 103; 

 rock distribution, 104-105; char- 

 acter of rocks, 104-107; thickness, 

 107; physical history, 107-110; 

 foreign, 111-112; climate, 112; 

 economic products, 112-113; life 

 of, 113-119. 



Sinclair, W. J., 288, 324. 



Slate, 69. 



Smith, G. O., 303. 



Smith, J. P., 214. 



Smith, William, 6, 7, 219. 



