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



WAR DEPARTMENT. 



ROUTES IN CALIFORNIA TO CONNECT WITH THE ROUTES NEAR THE THIRTY-FIFTH AND THIRTY-SECOND 

 PARALLELS, AND ROUTE NEAR THE THIRTl'-SECOND PARALLEL, BETWEEN THE RIO GRANDE AND PIMAS 

 VILLAGES, EXPLORED BY LIEUTENANT JOHN G. PARKE, CORPS TOPOGRAPHICAL ENGINEERS, IN 1854 

 AND 1855. 



GEOLOGICAL REPORT, 



THOMAS ANTISELL, M. D, 



GEOLOGIST OF THE EXPEDITION. 



WASHINGTON, D. Q. 



1856. 



