Publications of the United States Government. 35 



Report of 1871; by R. W. Raymond. Washington, 1873. 

 566 pp. 



Chapter on California ; by W. A. Skidmore. pp. 13-140. 

 -Diamonds in El Dorado County ; by W. A. Goodyear, p. 27. 



Report of 1872; by R. W. Raymond. Washington, 1873. 

 550 pp. 



Chapter on California; by W. A. Skidmore. pp. 7-107. 



List of mining claims in California, pp. 102-107. 



Treatment of gold-bearing ores in California ; by G. F. Deetken. 

 Chapter 11. 



Pliocene rivers of California ; by A. W. Bowman. Chapter 16. 



Hydraulic mining in California ; by Chas. Waldeyer. Chapter 17. 



This report also contains a geological map of the United States, 

 by C. H. Hitchcock and W. P. Blake; also, a map showing a portion 

 of the mining region in Placer and El Dorado Counties, and maps of 

 Slate Creek Basin, Sierra County. 



Report of 1873; by R. W. Raymond. Washington, 1874. 

 585 pp. 



Chapter on California ; by W. A. Skidmore. pp. 13-154. 



Quicksilver in California ; by Chas. G. Yale. pp. 27-29. 



Beach sands of Gold Bluff; by A. W. Chase, pp. 145-147. 



Mining and metallurgy of quicksilver in California; by Louis 

 Janin, Jr. Chapter 11. 



The geological formation of iron deposits in California is given on 

 p, 44, extract from James D. Hague and Clarence King's report of 

 the Sierra Iron and Mining Company. 



Report of 1874; by R. W. Raymond. Washington, 1875. 

 540 pp. 



Chapter on California ; by W. A. Skidmore. pp. 11-194. 



Seam mining, p. 81. 



Geology of the Sierra Nevada in its relations to vein mining, with 

 map and tabular exhibit of results of mining; by Amos Bowman. 

 Chapter 18. 



History of relative values of gold and silver. Chapter 19. 



An abstract of Dr. J. G. Cooper's paper on the discover3' of lignites 

 in Amador County and other counties in the foothills of the Sierra 

 Nevada is given on p. 75. 



Report of 1875; by R. W. Raymond, ^^^^shington, 1877. 



519 pp. 



Chapter on California; by W. A. Skidmore. pp. 3-131. 

 Quicksilver in California ; by J. B. Randol. pp. 4-21. 

 Extinct rivers of the auriferous belt of California ; by C. J. Brown, 

 pp. 65-68. 

 Geology of Plumas County, with map ; by J. A. Edman. pp. 109-128. 

 Petroleum in California ; by F. A. Clarke, pp. 21-22. 



