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



NEVADA, 



1880. Map of Nevada County, California. Compiled from 

 the latest authentic sources, showing towns, villages, 

 roads, streams, mining ditches, and U. S. land surveys, 

 quartz and placer mining claims, by J. G. Hartwell, 

 county surveyor, 1880. Approved and declared official, 

 July 26, 1880. (W. T. Galloway, lith.) Scale, 1% m. 

 to 1 in. 



1894. The channel system of the Harmony Ridge, Nevada 

 County, California; by Ross E. Browne. Accompany- 

 ing 12th Report of State Mineralogist, 1894. 



1897. Map of vicinity of Grass Valley and Nevada City, 

 Nevada County, by Charles E. Uren. 1897. Scale, 1 m. 

 to 4 in. 



1902. Map of Nevada County. Scale, 2 m. to 1 in. State 

 Mining Bureau, Register of Mines, Nevada County. 



ORANGE. 



1889. Map of Orange County. Compiled by S. H. Finley. 

 Scale, 60 chains to 1 in. 



1902. Map of the saline deposits of the southern portion of 

 California. Accompanying Bulletin No. 24, State Min- 

 ing Bureau, 1902. 



PLACER. 



1887. Official map of Placer County. Compiled by E. C. 

 Uren. 1887. Scale, ll^ m. to 1 in. 



1902. Map of Placer County. Scale, 2 m. to 1 in. State 

 Mining Bureau, Register of Mines, Placer County. 



