Publications of Scientific Societies. 71 



Mineral districts of Central California; by Prof. John B. Trask. 

 Mining Mag., Vol. 3, 1854, pp. 121-136; continued on 

 pp. 289-250. 



Geology of the gold region of California; by Mr. Wilson. Min- 

 ing Mag., Vol. 3, 1854, pp. 63-64. 



Observations on the extent of the gold region of California and 

 Oregon; by William P. Blake. Mining Mag., Vol. 5, 

 1855, pp. 32-45. 



MINING AND SCIENTIFIC PRESS. 



Published at San Francisco. 



Earthquakes in San Francisco, and specially on their direction; 

 by J. A. Veatch. Mining and Scientific Press, March 

 31, 1868. 



Cinnabar at Point Reyes. Mining and Scientific Press, Febru- 

 ary 27, 1875. 



See also Vol. 27, 1873, p. 166; Vol. 29, Aug. 15,. 1874; 

 Vol. 31, 1875, p. 118, for articles and references to the 

 Cinnabar of California. 



NATURE. 



Prairie mounds of California and Oregon; by Joseph Le Conte. 

 Nature, Vol. 15, 1877, p. 530. 



NEW YORK ACADEMY OF SCIENCES. 



Silicified wood from California; by James J. Friedrich. Trans. 

 New York Acad. Sci., Vol. 8, 1889, pp. 29-30. 



Includes reference to the relations and age of the associated 

 deposits in Lake and Napa Counties. 



