X INDEX. 
Page. Page, 
Santa Anna River ......... 89 | Segregation in granite 208 
Santa Barbara 130.187 Selenite 103 
Santa Barbara, fossils of... - 179 | Septaria 175 
San B tern Martes 137 | Sequoia gigantea 259 
San Bernardino Pass 89,90 Serpentine used as a building stone 157 
San Bruno Range 139 Serpentine near the Four Creeks 28 
Santa Clara River à 49 Serpentine near San Francisco 151 
Santa Cruz Range 139 | Serpentinoid rock 214 
San Diego 3 ins and sandstone of San Francisco 146 
San Diego Mission 128 hadows of the mountains Tm in inis lacu ss 100 
` San Diego, tertiary strata of nn qun fossil at Oco eek 171 
San Felipe 105, 107, 124 Shells on the surface of سین‎ Desert 97,101 
San Fernando Mission $ 74 Shore-line of an Suena lake 97 
San Francisco Shoberia calceolif 48 
San Francisco, rocks of 145 | Shrinkage cracks in the soil 26 
San Francisquito Rancho 71 | Sierra, use of the word 137 
San Francisquito Passa 55 | Sierra Nevada, view of, from the Four Creeks ------- 25,26 
San Francisco Range.....- 139 snow on 25 
San Gorgoño Mountain 91 view of, from a hill in the Tulare plain. 28 
San Gorgoño Mountain, view of, from Deep Well..... 96 from the Great Basin 54 
San Gorgoño Pass 29,20 extent and altitude of the chain... ...- 134 
Santa Isabel 125,126 its broken character at the Tejon.....- 197 
San Joaquin River 144 influence on the climate of the Great 
San José, valley of. 141 Basin ۲ 
San Juan Mountains, sandstone of 152 | Sierra de Santa Lucia 139 
San Juan Range... 139 | Sierra Madre A 137 
Santa Maria Rancho 126 | Signal mountain on the Desert >: AI 
San Luis Obispo 130 Silica, bituminous a A30 
Fan Luis Obispo, infusoria at 189 | Silicified wood 108, 263 
San Pasqual 127 cut by moving sand - 108 
San Pedro 76,129 of the Colorado Desert.......- 117, 120, 122 
Satin spar 168 | Silicified plants, Cañada de las Uvas -. 49 
Saw-mill 4 | Silicious infusoriaat Monterey - 181 
i brupt: 186 | Silliman, Prof. Benjamin, jr., analysis of Cowlitz coal.. 287 
Scirpus lacustris 191 Silt of the Colorado . 112 
Scomberoides : : 172 Silver 5 . 301 
Scorpion RE 34 Silver ore, supposed existence of 81 
Schizotherus Nuttallii 186 | Silver, telluret of -. 302 
Screw bean, or Tourniel 105 | Skeletons of cattle on the Desert مب‎ 110 
Scutella interlineata 153 | Slopes of the Basin . 8 
Scymnus occid 172 | Slopeof the Great Basin near Williamson’s Pini. — 63 
Bon lion 4 of the Great Basin at the Tejon Pass ---.------- 52 
Sebastian Military Reserve. 39 of the Peninsula Sierra to San Diego----------- 128 
Section at Bear Creek 15 of the Desert from Carrizo Creek -------------- 108 
of the valley of the San epa He aene e 22 of the Bernardino Sierra «c 0 
of the strata at Ocoya C 35 Sloughs of the San Joaquin 10 
of the valley of the Mojave 64 connecting the San Joaquin with the Tulare ۳9 = 
of the Colorado River at Fort Yuma ......... 了 
of the strata at Ocoya Creek 167 | Snow, southern limit of perpetual, on Bin teks Nevada = 
- of infusorial strata at Monterey 181 BRA PRISAS 125 
of the Sierra Nevada at the Tejon Pass....198,199 | Snow-covered peaks of the Sierra Nevada..---------- 17 
at the Tejon Ravine Soda, carbonate 0f ---- a 310 
at the Cafiada de las Uvas 208 | Springs of the Colorado Desert.....-.-------- 94, 244, 245 
of the terraces of the Desert 233 in the Grea in ;--- 52, 53, 54, 221, = 
of the Sand Hills fing 241 | Squalus spinosus ....--.----~---------------"""-"" 
of auriferous drift at Sarahville 263 | Squaws gathering the Mezquite beans --.------------ 105 
of a mining claim at Michigan City .......... 266 | Stair-like ascent of the mountains .-------------- 124, 126 
of the auriferous deposits at Mameluke t 272 | Stalactites in the cave at Cave City ----------------- 260 
of the coal strata at Bellingham Bay--------- 286 | Stanislaus River at Abbey's Ferry ------------------ 256 
