INDEX. 
Page 
Sisar Creek, rocks on. 29,47 
Sisar Creek oil field. See Silver Thread oil 
field. 
Smilodon sp. 154 
Sob re Vista Oil Co., oil wells of.41-42 
Solen paralleius Gabb. 11 
rosaceus Carpenter. 26 
sicarius Gould. 24,107 
Soquel Canyon, rocks in. 104,12. r >, 127-128 
South Mountain, elevation of. 3 
rocks in. 15,20,77 
South Mountain-Oak Ridge anticline, de¬ 
scription of.76-78 
oil wells on. 79-80 
Southern Sulphur Mountain field. See 
Sulphur Mountain. 
Spirocrypta pileum Gabb. 11 
Spisula planulata Conrad. 26 
Structure, account of. 29-36,108-109 
sections of, plates showing.. 28,30,108,130,162 
See also particular oil fields. 
Sulphur Canyon, fossils in. 21 
Sulphur Mountain, altitude of. 3,42 
faults at. 38-39,44-45,63 
oil field on, description of.42-46 
geology of. 42^13 
location of. 4,42 
oil wells in. 45-46,203 
structure of. 44 
oil wells on. 40 
oil of, analyses of. 209,211,212 
rocks on. 20,38,42-43,47 
Sulphur Mountain fault, location of. 63 
Sulphur Mountain Petroleum Co., well of.. 209, 
211,212 
Sulphur Peak, rocks at.54,55 
Sunset Oil Co., wells of. 34-35,65,69 
Syncline, oil in. 33,56-57 
T. 
Tankage, amount and distribution of_134,198 
Tapes staleyi Gabb. 153 
staminea Conrad. 27 
tenerrima Carpenter. 25,28 
Tapo anticline, description of.84,91 
location of. 36,82-83 
oil wells in. 89 
Tapo Canyon, oil field in, geology and struc¬ 
ture of. 80-86 
oil field in, location of. 80 
wells of.4,16,89 
rocks in. 16 
Tar Creek, canyon of, oil wells in.4,61-62 
canyon of, oil wells in, oil of, analyses 
of.216-217 
fossils from. 12 
rocks on and near. 13,18 
Telegraph Canyon, rocks in. 131 
Tellina hoffmaniana Gabb. 11 
longa Gabb. 11 
parilis Gabb. 11 
idseDall. 25,26,153 
Temple road. See Western avenue and 
Temple road. 
265 
Page. 
Terebra simplex Carpenter. 28 
Terebratalia occidentals Dali. 153,250 
smithi Arnold. 250 
Teredo sp. 224 
Tertiary fossils. 255 
Texas, oil of, composition of. 204 
Thompson Ridge, faults in. 37-38 
rocks in. 37-38 
Thompson Ridge fault, location of. 37 
Thracia semiplanata Whiteaves. 11 
sp. 146 
Timber Canyon, oil well in, oil of, analysis 
of. 209,211,212 
Topatopa anticline, description of. 30 
oil wells on. 33,34,54 
rocks of. 33 
view of. 2 
Topatopa formation, age of. 7 
character of. 5-6 
distribution of. 7,46-47,49,51 
oil of. 7,33 
oil wells in.. 54,55 
Topatopa Range, altitude of. 3 
structure of. 30 
Topography, description of. 1-4 
Tomatina culcitella Gould. 28 
harpa Dali. 28 
Torrey anticline, description of. 81-83 
location of. 36 
Torrey Canyon, fossils from. 17 
oil field in, geology and structure of_80-86 
location of. 80 
wells in.86-87 
oil of, analyses of. 209,211,213-215 
rocks in. 16,81-83 
Towsley Canyon, oil wells in. ;... 4,95 
Tresus nuttalli Conrad. 26,27 
Triton gibbosus Broderip. 26 
Tritonium sp. 14,25,252 
Trochita costellata Conrad. 107,148, 236 
filosa Gabb. 25,252 
inomata Gabb. 148 
sp. 17 
Trophon multicostata Conrad. 107 
sp. 13,14,147,148 
Turbo topangensis Arnold. 148,228 
Turbonilla laminata Carpenter. 28 
sp. 11,26,28 
Turritella. 254 
cooperi Carpenter, var. feniandoensis 
Arnold. 25,27,28,107, 254 
hofimanni Gabb. 254 
ineziana Conrad. 14,17 ,254 
var. sespeensis Arnold. 12,13 
jewetti Carpenter. 26 ,254 
ocoyana Conrad. 148, 254 
pachecoensis Stanton. 254 
uvasana Conrad. 11,25^ 
variata Conrad. 147,148, 254 
sp. 24 
U. 
Union Consolidated Oil Co., wells of. 33,54 
Union Oil Co., tanks and pipe lines of. 134-135,198 
