" + 
EXPLORATIONS AND SURVEYS FOR A RAILROAD ROUTE FROM THE MISSISSIPPI RIVER TO THE PACIFIC OCEAN. - 
SEHON BE RIESE. 
ROUTES IN CALIFORNIA, TO CONNECT WITH THE ROUTES NEAR THE THIRTY-FIFTH AND THIRTY 
PARALLELS, EXPLORED BY LIEUT. R. ی‎ WON, CORPS TOPOGRAPHICAL ENGINEERS, IN 1853. 
PORT 
E. DURAND AND T. C. HILGARD, M. D. 
WASHINGTON, D. C. 
1855. 
