Publications of the United States Government. 59 



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



REPORTS OF THE UNITED STATES MINT. 



Report of 1880. Statistics of production of the precious 

 metals in the United States for 1880 ; by H. C. Burchard, 

 Director of U. S. Mint. Washington, 1881. 443 pp. 



Contains chapter on California mines, by W. A. Skidmore and 

 Charles G. Yale ; Contributions to California geology, by Melville 

 Attwood ; Auriferous gravels, by Charles G. Yale. 



Report of 1881; by H. C. Burchard, Director of U. S. Mint. 



Washington, 1882. 765 pp. 



Contains chapter on California mines, by A. M. Lawver; Milling 

 of gold quartz, by Melville Attwood; Mining machinery in Cali- 

 fornia, by Charles G. Yale ; Gold from sulphurets, by Melville Att- 

 wood ; Auriferous gravels of California, by John Hays Hammond ; 

 Old river-beds of the Sierra Nevada of California, by James J. 

 McGillivray. 



Report of 1882; by H. C. Burchard, Director of U. S. Mint. 



Washington, 1883. 873 pp. 



Contains chapter on California mines, by J. R. Hardenburg; 

 Placer gold in California, by Henry G. Hanks. 



Report of 1883 ; by H. C. Burchard, Director of U. S. Mint. 

 Washington, 1884. 858 pp. 



Contains chapter on California mines, by J. R. Hardenburg ; Con- 

 dition of mining in California, by W. A. Skidmore ; Drift mining 

 in California, by R. L. Dunn. 



Report of 1884; by H. C. Burchard, Director of U. S. Mint. 



Washington, 1885. 644 pp. 



Contains a chapter on California mining, by A. M. Lawver ; Gold 

 and silver mining in California, past, present, and prospective, by 

 W. A. Skidmore ; Forms in which gold occurs in nature, by W. P. 

 Blake. 



