338 TRANSACTIONS OF THE 



Fremont, Colonel J. C. Greogvaphical Memoir upon Upper California, 

 etc. Washington, 1848. 



Humboldt, Alexander. JSTouvelle Espagne. 



IsBiSTER, A. K. Geological sketch of the northernmost parts of Amer- 

 ica, etc. Quarterlij Journal Geological Society^ London; vol. 11, 

 page 497 ; 1855. 



Marcou, Jules, treology of North America. 4to. Zurich, 1858. See, 

 also, a "Eesume" in the reports of the U. S. Pacific Kailroad 

 Survej-s. ^ 



Sur le Gisement de I'Or en Californie. 8vo. pamphlet. Geneva, 



1855. 



Mining Magazine. 12 vols Svo. New York. Second serieS; vols. 1 

 and 2. New York and New Raven. 



Mining and Scientific Press. 4to. San Francisco. 



MoFRAs, DuFLOT DE. Explorations du Territoire de I'Oregon, des Cali- 

 fornies et de la Mer Yermeille. 2 vols. 8vo. Paris. 



Newberry, Dr. J. S. Pacific Piailroad Eeports, and Ives' Colorado Expe- 

 dition Eeport. 



Pacific Eailroad Explorations and Surveys. 12 vols. 4to. Govern- 

 ment Press, Washington ; various years, fi'om 1855 to 1861. 



PuMPELLT, Eaphael. Mincralogical sketch of the Silver Mines of Ari- 

 zona. Proceedings California Academy Natural Sciences, vol. 

 2, page 127. 



Eandall. a. Eeport in favor of a Geological Survey of California, sub- 

 mitted in Assembly April 24, 1851. 19 pages, 8vo. 



EiCHTHOFEN, FERDINAND Baron. Dio Metall-Produktion Californiens 

 tind derAngrenzenden Lander. 4to. Gotha; Justus Perthes, 

 1864. Also, in Petermann's Mittheilungen. 



Trask, John E. Eeports on the Geology of California, to the Governor 

 and Legislature of the State, from 1853 to 1856. 8vo. State 

 documents; Sacramento. 



Tyson, Philip T. Geology and Industrial Eesources of California. Svo. 

 Baltimore, 1851. Also, as Ex. Doc. No. 47, 31st Cong., 1st 

 sess. ; Senate. 



Whitney, Professor J. D. Geological Survey of California, vol. 1, 

 1866. 



Wilson, J. S. On the Gold Eegions of California. (Extract from the 

 Quarterli/. Journal of the Geological Sociefjt/, London; vol. 10.) 



