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



1872. Geological map of the United States; compiled for the 

 Ninth Census by C. H. Hitchcock and Wm. P. Blake, 

 Washington, 1872. 



The same map was published in Raymond's Statistics of mines, 

 States west of the Rocky Mountains ; Washington, 1873. Also in 

 Statistical atlas of the United States Ninth Census, plates 13-14 ; 

 Washington, 1874. Scale, 1 : 715,000. It was distributed also at 

 the Centennial Exhibition at Philadelphia, 1876, with the special 

 report of Smithsonian Institution. It was issued in Gray's Atlas 

 of the United States and of the World, 1877. 



The Utah, Nevada, California, and Oregon portions were com- 

 piled by William P. Blake from personal observation, Pacific rail- 

 road reports, California geological reports by Whitney, Geology of 

 the fortieth parallel by Clarence King, etc. 



1879. Geological sketch of the United States; by James 

 MacFarlane. Accompanying an American railroad guide 

 giving the geological formation of every railway station. 

 New York, 1879. p. 216. 



1879. Geological map from Colorado to the Pacific Ocean ; by 

 A. P. Vivian. Accompanying Wanderings in the West- 

 land. London, 1879. 



1881. Geological map of the United States; by C. H. Hitch- 

 cock. New York, 1881. Scale, 20 m. to 1 in. 



This is the largest map yet published, being 13 feet long and 8 

 feet wide. A pamphlet accompanies the map. The California por- 

 tion of the map is colored from material furnished by William P. 

 Blake, using as a base his geological map. Pacific railroad reports 

 (vol. 5), Hitchcock's census map, and the results of recent explora- 

 tions. 



1883. Geological map of the United States; compiled from 

 various official sources. Accompanying Wisconsin Geo- 

 logical Survey, vol. 1, part 1, plate 3, p. 79. Madison, 



1883. 



1884. Map of the United States, exhibiting the present status 

 of knowledge relating to areal distribution of geologic 

 groups; by W. J. McGee. Accompanying fifth annual 

 report of U. S. Geological Survey. Washington, 1884. 



1886. Geological map of the United States and part of Can- 

 ada; compiled by C. H. Hitchcock for the American In- 

 stitute of Mining Engineers. 



