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 r^sum^ 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. 



