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



VENTURA. 



1897. Official map of Ventura County. Compiled by G. C. 

 Power. 1897. Scale, 80 chains to 1 in. 



YOLO. 



1871. [Official] map, by J. S. Henning. May, 1871. No 

 scale. Size, 51x42 in. (Britton & Rey, lith.) 



The same map is republished with same date by "Henning & 

 Sandford." 



1879. Official map of Yolo County, California. De Pue & 

 Co., publishers and compilers, Oakland, Cal. Adopted 

 by the Board of Supervisors November 6, 1879. W. T. 

 Galloway, lith., San Francisco. No scale. Size, 54x54 

 in. 



1891. Official map of Yolo County. Compiled by H. C. Mil- 

 ler. 1891. Scale, 60 chains to 1 in. 



1900. Official map of Yolo County. Compiled by P. N. Ash- 

 ley. Scale, 1 1-3 m. to 1 in. 



1903. Geological map of Yolo County quicksilver deposits. 

 Accompanying Bulletin No. 27, State Mining Bureau, 

 1903. 



YUBA. 



1856. Official map of the city of Marysville, California. 

 Compiled by N. Wescoatt and W. S. Watson. 1856. No 

 scale. 



1861. Official map of Yuba County, California. Compiled 

 and drawn from official surveys by N. Wescoatt, county 

 surveyor. Scale, 1 m. to 1 in. (Britton & Rey, lith.) 



1882. Map of Yuba River, showing the flooded lands adja- 

 cent thereto and impounding reservoir of mining dis- 

 tricts, from surveys in 1879. State Eng. Dept. 1879. 

 Scale, 10 m. to 1 in. 47th Cong., 1st sess.. Doc. No. 98, 

 1882, Mendenhall's Report mining debris in California 

 rivers. 



