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



Simpson, Henry J. The emigrant's guide to the gold mines. 

 New York, 1848. 



SoLiGNAC, Armond de. Les Mines de la California. Limoges, 

 1852. 98 pp. 



This book is a narrative of the author's trip to California. There 

 is very little about the mines, except on page 53, where he gives a 

 short description of the placers on the American River. 



Stetefeldt, C. a. The lixiviation of silver ores with hypo- 

 sulphite solutions, with special reference to the Runell 

 process. New York, 1888. 223 pp. 



Stewart, W. M. Lecture on the mineral resources of the 

 Pacific States. New York, 1865. 



•Stillman, J. D. B. Seeking the Golden Fleece. San Fran- 

 cisco, 1877. 352 pp. illustrated. 



This work is in the shape of a journal. On page 157 the author 

 gives an account of mines, etc. 



"Stone, R. C. Gold and silver mines of America. New York. 



Taylor, Bayard. El Dorado: Adventures in the path of 

 empire. New York, 1850. 



In the appendix there is a report of Hon. T. Butler King, on the 

 metallic and mineral wealth of the State, pp. 201-247. 



Taylor, R. C. Statistics of coal. The geographical and geo- 

 logical distribution of mineral combustibles or fossil fuel; 

 including, also, notices and localities of the various 

 mineral bituminous substances employed in arts and 

 manufactures. Illustrated by maps and diagrams,. etc. 

 Philadelphia, 1848. 



Under the heading of Upper California, the author states : " In the 

 spring of 1847, a new coal mine was discovered near San Luis Obispo, 

 N. Lat. 35°. There are now three mines within three hundred miles 

 of Monterey. Asphaltum and petroleum occur abundantly in West- 

 ern California." 



Same, Second edition, revised and brought down to 1854, 



by S. S. Haldeman. Philadelphia, 1855. 



Notes a report of Dr. Le Conte on the discovery of coal, 12 miles 

 north of San Diego, in 1851. 



