EXPLORATIONS AND SURVEYS FOR A RAILROAD ROUTE FROM THE MISSISSIPPI RIVER TO THE PACIFIC OCEAN. 



WAR DEPARTMENT. 



ROUTES IN CAUni'ORNIA TO CONNECT WITH THE ROUTES NEAR THE THIBTT-PIFTH AND THIRTY-SECOND 

 PARALLELS, AND ROUTE NEAR THE THIRTY-SECOND PARALLEL, BETWEEN THE EIO GRANDE AND PIMAS 

 VILLAGES, EXPLORED BY LIEUTENANT JOHN G. PARKE, CORPS OP TOPOGRAPHICAL ENGINEERS, IN 

 1854 AND 1855. 



BOTANICAL REPORT: 



JOHN TORREY, M. D. 



WASHINGTON, D. 0. 



1856. 



