Publications of the United States Government. 29 



The future of silver, by Suess Edward; translated by Robert 

 Stein, U. S. Geol. Survey. Washington, 1893. 101 pp. 

 (53d Cong., 1st sess., Senate Misc. Doc. 95.) 



The author gives a sketch of the California gold fields. 



U. S. NAVY DEPARTMENT. 



Letter from the Secretary of the Navy, inclosing report of ex- 

 periments on the coal of the Pacific Coast, in compliance 

 with a resolution of the'House of March 22, 1872. (42d 

 Cong., 2d sess., Ho. of Rep. Ex. Doc. 206.) 



This report of Chief Engineer B. F. Isherwood, U. S. Navy, contains 

 a report on the brown coal from Mount Diablo coal mines of Cali- 

 fornia. 



REPORTS OF EXPLORATIONS AND SURVEYS 



For a Railroad from the Mississippi River to the 

 Pacific Ocean. 



Pacific Railroad Reports, Vol. III. Resume of a geological 

 reconnoissance, extending from Napoleon, at the junction 

 of the Arkansas with the Mississippi, to the Pueblo de 

 los Angeles, in California; by .Jules Marcou. pp. 165- 

 175. 



This resume was reprinted from the preliminary report of Lieuten- 

 ant Whipple. Chap. VI, p. 40, House Doc. 129. Washington, 1855. 



The report has a geological map of the route explored near the 

 parallel of 35° north latitude, from the Mississippi River to the 

 Pacific Ocean. 



Vol. V. Routes in California to connect with the routes 



near the 35th parallel and 32d parallel explored by 



Lieut. R. S. Williamson in 1853. Geological report by 



William P. Blake. Washington, 1856. (33d Cong., 2d 



sess., Senate Ex. Doc. 78.) 



This report contains general observations upon the geology of the 

 route : 

 Chapter I. San Francisco to the San Joaquin River. 



• II. Grayson's Ferry, on the San Joaquin, to Fort Miller. 

 III. Fort Miller and the vicinity ; Fort Miller to Ocoya Creek. 



