Cartography of California. 177 



GEOLOGICAL MAPS OF CALIFORNIA. 



1831. Geological map of San Francisco Bay; a map of the 

 headland embracing San Francisco Bay. Accompanying 

 Narrative of a voyage to the Pacific and Behring's Strait, 

 etc., under the command of Capt. F. W. Beechey. Lon- 

 don, 1831. 



In the volume on zoology, .by Prof. Buckland, there are several 

 references to the geology of the vicinity of San Francisco. 



1850. Geological reconnoissance in California; by P. T. 

 Tyson. Accompanying Tyson's Report on the Geology 

 of California. Washington, 1850. Not colored, with 

 mineral indications. 



1853. Topographical map of the mineral districts of Cali- 

 fornia, being the first map ever printed from actual sur- 

 vey; by John B. Trask. San Francisco, 1853. 



1856. Geological map of the vicinity of San Francisco; by 

 Wm. P. Blake. Accompanying Pacific Railroad Survey, 

 vol. 5, p. 145. Washington, 1856. 



1856. Geological map of the entrance of San Francisco Bay ; 

 by Wm. P. Blake. Scale, 1 : 150,000. Accompanying 

 U. S. Coast Survey, 1855, p. 376. Washington, 1856. 



1856. Geological map and section of Punta de los Reyes; by 

 Wm. P. Blake. Scale, 1 : 150,000. Accompanying IT. S. 

 Coast Survey, 1855, p. 376. Washington, 1856. 



1856. Geological map of San Diego and the adjoining coast; 

 by Wm. P. Blake. Scale, 1:608,228. Accompanying 

 U. S. Coast Survey, 1855, p. 376. Washington, 1856. 



1856. Geological map of Point Pinos and Monterey Bay; by 

 Wm. P. Blake. Scale, 1 : 150,000. Accompanying U. S. 

 Coast Survey, 1855. Washington, 1856. 



1856. Geological map of the country between San Diego and 

 Colorado River. Scale, 1 : 608,228. Accompanying Pa- 

 cific Railroad Survey, vol. 5, p. 228. Washington, 1856. 



