90 A Bibliography of the Geology, etc., of California. 



Cooper, A. S. The genesis of petroleum and asphalt in Cali- 

 fornia. Scientific American Supplement, September 2, 

 1893, and December 30, 1893. 



Red shales, as connected with the genesis of bitumen in California. 

 The most important asphalt deposits in California are in Tertiary 

 rocks. In Kern County they occur in veins and superficial beds ; in 

 Santa Cruz County, bituminous beds are mined ; in San Luis Obispo 

 Countj^, in strata and as superficial deposits from springs ; in Santa 

 Barbara County, mixed with sand and other substances found in 

 veins and beds, and in sandstone and shale ; in Ventura County, in 

 irregular veins and impregnating sandstone. 



Cooper, Dr. J. G. Resources of San Luis Obispo County. San 

 Francisco, 1875. 



Cory, Thomas G. Gold from California. Lecture, March 25, 

 1856. 



Coulter, Thomas. Notes on Upper California. In Geog. Soc. 

 Journal, Vol. 5, 1835, pp. 59-69. 



Cronise, Titus F. The natural wealth of California. San 

 Francisco, 1868. 696 pp. 



Comprising early history ; geography, topography, and scenery ; 

 climate ; agriculture and commercial products ; geology, zoology, and 

 botany ; mineralogy, mines, and mining processes ; manufactures ; 

 steamship lines, railroads, and commerce ; immigration, population, 

 and society ; educational institutions and literature ; together with 

 a detailed description of each county, its topography, scenerj^ cities 

 and towns, agricultural advantages, mineral resources, and varied 

 productions. 



Chapter Yl treats of geology of the State ; principally taken from 

 Professor Whitney's reports. Pacific Railroad Reports, and Blake's 

 Geological Reconnaissance in California, etc. 



Dana, James D. Manual of Geology, treating of the principles 

 of the science, with special reference to American geo- 

 logical history. 2d edition. New York, 1874. 828 pp. 

 (Third edition. New York, 1895.) 



This work" contains special articles on California artesian •wells, 

 p. 654 ; also, notes on the Carboniferous, Cretaceous, Jurassic, Quater- 

 nary, sub-Carboniferous, Tertiary, and Triassic formations ; with ref- 

 erences to geysers, hot springs, human relics, and terraces in California. 



Davies, William O. Report of the Pacific Coal Company. 

 New York, 1865. 10 pp. 



Contains report of borings by W. O. Davies; coal fields on the 

 Marsh ranch, in Contra Costa County, with section showing the dip 

 of veins. 



