56 A Bihliography of the Geology, etc., of California. 



Pacific Railroad Reports, vol. 7. {Continued.) 



From San Buenaventura : Tapes montana. 



From Pajaro River : Venus Pajaroana. 



From Sierra Monica : Cyclas permacra; Ostrea suhjecta. 



From San Luis Obispo Valley : Area Ohispoana. 



From Gaviota Pass : Ostrea panzano; Mactra? Gaviotensis; 

 Trochita costellata. 



From Salinas River, Monterey County : Dosinia altaj D. longiila; 

 D. montana; D. suholliqua. 



From Ranch Triumpho, Los Angeles : Lutraria transmontana; 

 Axinea Barharensis. 



Report of Mr. T. A. Conrad on the fossil shells collected in 

 California by Wm. P. Blake, geologist of the expedition 

 under the command of Lieut. R. S. Williamson, etc. 

 Washington, 1855. 34 pp. (House Doc. 129.) 



The fossils described in this report were afterward republished, 

 with figures, in the fifth volume of Explorations and Surveys for a 

 Railroad Route from the Mississippi River to the Pacific Ocean. 



MINERAL RESOURCES OF THE STATES AND 

 TERRITORIES WEST OF THE MISSISSIPPI. 



Report of 1867; by J. Ross Browne and James W. Taylor, 

 U. S. Mining Commissioners. Washington, 1867. 360 pp. 



Historical sketch of gold and silver mining on the Pacific Slope ; 

 by J. Ross Browne and J. W. Taylor, pp. 13-36. 



Geological formation, etc., of Pacific Slope ; by William Ash- 

 burner, pp. 37-49. (Contains articles on the gold-mining interest 

 of California ; characteristics of the gold belt ; northern mining 

 district ; mining in the Sierras. ) 



Condition of gold and silver mining on the Pacific Coast ; by J. 

 Ross Browne and James W. Taylor, pp. 49-85. 



The copper resources of the Pacific Slope ; geological formation 

 in which copper is found ; by J. Ross Browne and James W. Taylor. 

 Section V, pp. 138-169. 



Quicksilver mines in California ; New Almaden mines, products 

 and exports. Section VI, pp. 170-178. (This article contains a de- 

 scription of the New Almaden mines, with extracts of a report by 

 Prof. B. Silliman, Jr., from the Am. Jour. Sci. for September, 

 1864.) 



Borax, sulphur, tin, and coal. Section VII, pp. 178-193. (Con- 

 tains articles on the discovery of borax in California, etc. ; reports 

 on tin, from the Geological Survey of California, vol. 1, p. 180; 

 with report on the coal mines of the West Coast of North America, 

 by W. M. Gabb.) 



