Page 8 - califmining1924
P. 8
ILLUSTKATIOXS.
LETTER OF TRANSMITTAL
Page
Outline map of California, showing approximate locaiion of oil fields 27
Tramway terminal and head-frame at Superior Mine, Kngels Copper Company,
Plumas County 42
Surface plant (head-frame and mill) of Idaho-Maryland Mine at Grass Valley,
Xevada County 46
Filters in cyanide plant of Empire Mine, Grass Valley, Nevada County 46
State highway bridge over the Sacramento River, Dunsmuir. Siskiyou County,
showing use of California cement and crushed rock in a reinforced con-
crete structure -- 67
Summit lime plant of Union Lime Company at Tehachapi, Kern County 73
Southerly side of 'Xorth' Hill (Marker Mine) from the south, showing both 'Gash'
and 'Blanket' veins, near Porterville, Tulare Countv 75
Magnesite specimen showing conchoidal fracture. From Xo. 4 Tunnel, Tulare
Mine of Sierra Magnesite Company, near Success, Tulare County 76
^Magnesite specimen showing conchoidal fracture. From Stanislaus County 76
Travertine being deposited by mineral spring at Bridgeport, Mono County 81
Loading crushed rock on barge at quarry of Blake Bros., Point Richmond. Contra
Costa County 87
Hauling salt from ponds of Leslie Salt Refining Company, San Mateo County 127
