Publications of Scientific Societies. 69 



Beitrag zur Kenntniss der geognostischen Beschaffenheit Cali- 

 forniens; von Dr. G. Grewingk. Verhandlungen der Rus- 

 sisch-Kaiserlichen Mineralogischen-Gesellschaft. zu St. 

 Petersburg. .Jahr. 1847, pp. 142-162. 



FRANKLIN INSTITUTE JOURNAL AND AMERI- 

 CAN MECHANICS' MAGAZINE. 



Published at Philadelphia. 



Experiments on various coals of the Carboniferous and Cre- 

 taceous periods, to ascertain their relative potential and 

 economic vaporizations; made by Chief Engineer B. F. 

 Isherwood, U. S. Navy, at the Mare Island Navy Yard, 

 California, in 1871. Journal of Franklin Institute, Vol. 

 27, 3d ser., No. 6, June, 1872, pp. 392-402. 



See Report U. S. Navy Department. House Doc. 42d Cong., 2d ses- 

 sion, Ex. Doc. 206, 1872. 



HUTCHINGS'S ILLUSTRATED CALIFORNIA 

 MAGAZINE. 



A mammoth tusk. Hutchings's Illustrated California Maga- 

 zine, Vol. 2, 1857-58, pp. 15-16. 



HUNT'S MERCHANTS' MAGAZINE. 



A history of the discovery of gold in California; by Geo. M. 

 Evans. Hunt's Merchants' Magazine, Vol. 31, p. 385. 



JOURNAL OF GEOLOGY. 



Published at Chicago, 111. 



Vol. 1, 1893— Vol. 3, 1895. 



Revolution, in the topography of the Pacific Coast since the 

 Auriferous period; by J. S. Diller. Jour. Geol., Vol. 2,, 

 1894, pp. 32-54. 



