Index 



gabbi, 367, 390; figures of, 374. 

 n. var. tenuis, 368; figure of, 

 374. 

 norrisi, 268. 

 oregonensis, 368. 

 pabloensis, 369; figures of, 374. 

 Selby Sinelter, type locality of Mar- 

 tinez formation, 81, 88. 

 Seraphs (?) thompsoni, 144; figures 

 of, 172. 



Shoshone Mountains, Idaho, 356. 

 Silification, 234. 

 Siliqua lucida, figure of, 518. 

 Sill, 224. 



Silverado Canon, California, 262. 

 Siphonalia danvillensis, 497. 



(f)lineata, figure of, 174. 



pabloensis, figure of, 564. 

 Skull and Dentition of the Mylodont 

 Sloths of Rancho La Brea, 319. 

 Smith, G. O., cited, 358. 

 Smith, J. P., cited, 339, 416, 433. 

 Solen parallelus, 266. 



perrini, 477 ; figure of, 518. 



stantoni, figure of, 168; zone, 81, 

 84, 103. 



Spisula abscissa, figure of, 546. 

 cf. catilliformis, 269; figure of. 

 548. 



cf. merriami, 266. 

 (?) weaveri, 139, 264; figures of, 

 168. 



Spurr, J. E.. cited, 241, 351, 352. 



Stalder, Walter, 183. 



Stanton, T. W., cited, 64, 67, 88, 91. 



Stearns, R., cited, 94. 



Stewart Valley, Nevada, 341; de- 

 scription of, 337. 



Stock, C, 319; cited, 327. 



Stoner, R., 284; cited, 78. 



Stoping, overhead, 5, 7, 224. 



Strophodus shastensis, 27; sym- 

 physial (?) tooth, 28; reticula- 

 tions of, 28, 29; illustrations 

 of, 28. 



Sturnella, 37. 



Sudbury laccolithic sheet, 8; sag 

 in,' 9. 



Sulfids, precipitation of, above wa- 

 ter table, 315; secondary, at 

 Ely, Nevada, 312; magmatic, 

 233; of pyrogenic origin, 235. 

 Surcula, sp., 149; figures of, 176. 

 fairbanksi, 148; figure of, 176. 

 merriami, 48; figure of, 176. 

 (surculites) andersoni, 149; figure 

 of, 176. 



Synclinal structure, and ore deposi- 

 tion, 233; association of contact 

 porphyry with, 240. 



Synthliboramphus, 34. 



Taff, J. A., cited, 68. 



Tapes (?) quadrata, figure of, 166. 



Teeth of a Cestraciont Shark from 

 the Upper Triassic of Northern 

 California, 27. 



Tegula (chlorastoma) danvillensis, 



482; figures of, 560. 

 nashi, 483; figures of, 560. 



Tejon formation, 260; south of Mt. 

 Diablo, 18; zone 1, 20; zone 2, 

 22; zone 3, 23; Siphonalis sut- 

 terensis zone, 23; transgression 

 of the Tejon Sea, 24, 266; coal 

 in, 25, 270; local unconformities, 

 25; at Merced Palls, 70; at San 

 Pedro Point, San Mateo County, 

 70; at San Diego, 70; at Marys- 

 ville Buttes, 70; unconformity 

 between and Martinez, 79, 267; 

 fauna, relationship of, to Mar- 

 tinez, 112, 114, 120, time-inter- 

 val between deposition of, 117. 



Tejon Hills, California, 283. 



Tellina ? diabloensis, 471; figure of, 

 552. 



englishi, 472; figures of, 552. 

 hannibali, 473; figure of, 552. 

 cf. herndonensis, 264. 

 herndonensis, 136; figure of, 166. 

 cf. hornii, 266. 



kewi, 138, 264; figure of, 168. 

 mathewsonii, 263. 

 cf. ocoyana, 269. 

 ooides, 263. 



packardi, 137; figure of, 166. 



perrini, 137; figure of, 166. 



salmonea, figures of, 552. 



undulifera, 264; figures of, 166. 

 Terebra martini, 216; figure of, 21S. 

 Terebratulina tejonensis, figure of, 

 158. 



Teredo, figure of, 168. 



Termier, cited, 7; criterion of, 12. 



Tertiary Echnoids of the Carrizo 

 Creek Region in the Colorado 

 Desert, 39. 



Tertiary Echinoids from the San 

 Pablo Group of Middle Califor- 

 nia, 365. 



Tertiary Mammal Beds of Stewart 

 and lone Valleys in West-Central 

 Nevada, 335. 

 Tetrabelodon (?), sp., figures of 



cheek-tooth, 307. 

 Thais lima, figure of, 566. 



vaquerosensis, 268, 269. 

 Thousand Creek beds, Nevada, 441. 

 Tivela diabloensis, figures of, 538. 

 var. angulatum, figure of, 542. 

 gabbi, 464; figures of, 540, 542. 

 inezana, 268. 



(Paehydesma) diabloensis, 462. 



var. angulatum, 463. 

 gabbi, 464. 

 Topatopa formation, 70. 



rssi] 



