Cartography of California. 247 



1887. Official map of Yuba County. Compiled and drawn 

 by J. M. Doyle. Scale, % m. to 1 in. 



YOSEMITE VALLEY. 



1865. ]\rap of the Yosemite Valley, from surveys made by 

 order of the Commissioners to Manage Yosemite Valley 

 and Mariposa Big Tree Grove, by C. King and J. T. 

 Gardner. 1865. Drawn by J. T. G. Scale, 1/2 m. to 

 1 in. 



[1867.] ^lap of a portion of the Sierra Nevada adjacent to 

 the Yosemite Valley, from surveys made by C. F. Hoff- 

 mann and J. T. Gardner, 1863-7. Geological Survey of 

 California, J. D. Whitney, State Geologist. Scale, 2 m. 

 to 1 in. 



LAKE TAHOE. 



1874. Topographical map of Lake Tahoe and surrounding 

 country. Compiled from the best authorities by Ferdi- 

 nand V. Liecht and J. D. Hoffmann. San Francisco, 

 1874. Scale, 2 m. to 1 in. 



1881. Topographical map of Lake Tahoe region. Sierra 

 Nevada, California, and Nevada. U. S. geographical 

 surveys west of the 100th meridian, expeditions of 1876 

 and 1877 under the command of First Lieutenant George 

 M. Wheeler, corps of engineers, U. S. Army. Reduced 

 by heliogravure at Imp. Royal Institute, Vienna, 1881, 

 from original on scale of 1 m. to 1 in. Scale, nearly 2 

 m. to 1 in. 



UNITED STATES COAST SURVEY CHARTS. 



Table of Scale Equivalents.— The following table gives 

 the lengths of statute miles on the several scales, these scales 

 being the proportionate size of the chart to nature. That is, 

 in the scale 1 : 1,200, the chart is one twelve-hundredth part 

 of the actual linear dimensions in nature (or 100 feet to the 



