INDEX. 
Ill 
Page. 
Chagres River.. 1 
Chalk-like strata at Monterey- 180 
Chamizal_ 57 
Channels in the slope of the Basin.....215 
Channel of Santa Barbara_ 3 
Charcoal in the strata of Ocoya Creek_166,173 
Chenopodiacese....48,116 
Chiastolite_345 
Chico Creek, tertiary of_ 173 
Chimney Peak_ 114 
China granite... 4 
Chinamen washing gold._ 20 
Chlorite slate_.199 
Chlorite slates, near the Merced_ 13 
Chlorite in slate- 60 
Chromic iron... 303 
Chrysolite_307 
Chowchillas River_ 16 
Clay hills of Ocoya Creek_ 165 
Clay of the Desert.101, 234 
polished by driving sand_ 97 
at Deep Well. 96 
Clay overlying deposits of gold....273 
Clay soil near King’s River_ 26 
Clay slate near the Merced_ 13 
near Auburn______261 
Clearness and transparency of the air in California_ 5 
Clearness of the air on the Desert. 100 
Cliffs of lava_ 23 
Climate of the Tejon. 40 
of the valley of San Bernardino_ 81 
of the Colorado Desert_248, 250 
Clover of California.. 75 
Coal from the Cowlitz River_ 287 
Coal of Bellingham Bay_285, 286 
Coal of Vancouver’s Island_287 
Coast Mountains. 138,139 
Coast Mountains visible from the plains of the Tulares . . 25 
west of the Tulare lakes_ 33 
seen from San Amedio Mountain_ 44 
age of. 279 
average elevation of... 140 
Cohuilla Indians. 98 
Coloma. 271 
Colorado Desert, extent and boundaries of_94,112 
sand hills of.240, 244 
sources of water on the..__244 
agricultural capabilities of the soil of.. 248 
geological formations of_ 234 
alluvium of. 234 
terraces on_233 
formerly the bed of an ancient lake_235 
soil of. 235 
climate of. 248, 251 
vegetation of. 252 
elevation of the surface of__144 
Colors of distant mountains. 100 
Columbia_ 255 
Columnar structure of lava.. 21 
Page. 
Columnar basalt. 3 
Colus arctatus . .. 170 
Comattcla, fossil.. 2 
Comet, visible from Ocoya Creek_ 34 
Concretions of clay, Colorado Desert__102 
Concretionary sandstone-. 102 
Concretions in the sandstone of the Diablo Range_ 9 
Concretions in the strata of the Desert_175 
Conferras .. 83 
Conglomerate, Benicia_ 4 
Diablo Valley... 6 
in Livermore’s Pass_ 9 
of quartz_ 16 
at Cruces_ 2 
near the Merced_ 12 
Conglomerate near San Diego_ 128 
in the banks of Posuncula River. 37 
bordering the Colorado..112 
Contra Costa range_139,140 
Cooke’s Well. Ill 
Copper, pyrites of, Great Basin. 290 
vitreous. 290 
native.291 
oxide. 291 
Copper ore near Williamson’s Pass. 66 
Copper ore, Williamson’s Pass_ 69 
Conrad, T. A., examination of fossils by_ 1 
Corbula Diegoana. 176 
Cordilleras of California_ 138 
Coritas, or baskets made by the Indians... 46 
Cottonwood trees on the banks of Moore’s Creek_ 23 
at Ocoya Creek... 32 
Cottonwood Creek_ 66 
Cow Camp. 61 
Cowlitz coal_287 
Coyote, California wolf. 5 
Crepidula. 130 
Crepidulaprinceps. 187 
Crest of the Sierra Nevada_ 134 
Cretaceous rocks_277 
Cruces_ 2 
Crystals of gypsum_ 44 
of andalusite... 16 
of mica_ 16 
Current of air through the Pass of San Bernardino.... 91 
Currier, P. C., esq., mining claim at Georgetown-273 
Cytherea and tellinm at the head of Tulare Valley .... 164 
D. 
Dalea Spinosa. 123 
Dana, Prof. James D. Report on the Geology of the 
Exploring Expedition cited.. 287 
Deer_ 10 
Deer skins offered for sale_ 35 
Deep Well, Colorado Desert_ 96 
Delta of the San Joaquin. 10 
of the Colorado.236 
of the Four Creeks_ 27 
Dentalium--- 173 
