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



SIERRA. 



1867. Map of the county of Sierra, with an indication of the 

 courses of the ancient river channels. Compiled from 

 surveys of James, Dodson, and Jones, by Grossman & 

 Cochrane, by request of Prof. W. P. Blake. Approved 

 by the Board of Supervisors. 1867. No scale. Size, 

 28x20 in. 



1874. Topographical map. Compiled from official surveys 

 by Charles W. Hendel, U. S. depy. mineral surveyor for 

 California. 1874. Scale, II/2 m. to 1 in. (Britton & 

 Rey, lith.) 



1903. Map and Register of Sierra County. Published by 



State Mining Bureau. 1903. Scale, 1% m. to 1 in. 



An economic geological map of western half of Sierra County is 

 included in this report. 



SISKIYOU. 



Eastern and north-central Siskiyou are topographically mapped 

 by the U. S. Geological Survey, J. W. Powell, director, 1886, on 

 Modoc lava-bed and Shasta atlas sheets. Scale, nearly 4 m. to 

 1 in. 



1887. Official map of Siskiyou County, State of California. 

 Carefully compiled by J. M. Davidson from actual sur- 

 veys. 1887. (Bancroft, lith.) Scale, nearly 2 m. to 

 1 in. 



With plans of Yreka and other towns. 



1894. Map of the auriferous conglomerate deposit of Siski- 

 you County. Issued by California State Mining Bureau. 

 1894. Scale, 1 m. to 1 in. 



1898. Map of Siskiyou County. Scale, 2 m. to 1 in. State 

 Mining Bureau, Register of Mines of Siskiyou County. 

 1898. 



SOLANO. 



1872. [Official] map by J. S. Henning. 1872. Scale, 60 

 chains to 1 in. (Britton & Rey, lith.) 



