Puhlicatious of tin i nited States Government. 51 



Notes on route from near the Tejon Pass, through western 

 New Mexico and the Colorado to Santa Fe in the fall of 

 1853; by Capt. F. C. Aubrey. 12 pp. [Published by 

 Congress in 1854 and in the California journals.] 



This was the route through the gold country on the head (south- 

 ern) waters of the San Juan and the upper branches of the Rio 

 Salodo, or Salinas, of the Gila River. 



Report of survey on the Union and Central Pacific railways; 

 by W. T. Twining. Washington, 1875. (44th Cong., 2d 

 sess.. Ho. of Rep. Doc. 38.) 



Mining debris in California. Preliminary report; by Col. 

 George H. Mendell. Submitted January 31, 1881. 



Mining debris in California rivers. Letter of the Secretary of 

 War. A final report upon the system to prevent further 

 injury to the navigable waters of California from mining 

 debris. 1882. 110 pp. 2 maps. Scale, 12 miles to 1 

 inch. (47th Cong., 1st sess.. Ho. of Rep. Ex. Doc. 98.) 



•Mining debris in California. Letter of the Secretary of War. 

 Report of Board of Government Engineers respecting the 

 adjustment of the conflict between the mining and farm- 

 • ing sections, and the rehabilitation of the mining industry 

 in California. 1891. 124 pp. 2 maps. (Ex. Doc. 267, 

 H. R., 51st Cong., 2d sess.) 



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. ^AYY DEPARTMENT. 



Letter from the Secretary of the Na\y, 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. Navj', con- 

 tains a report on the brown coal from Mount Diablo coal mines of 

 California. 



4-B 



