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



WAR DEPARTMENT. 



ROUTE ^EAR THE THIRTY-SECOND PARALLEL, FROM THE RIO GRANDE TO THE PIMAS VILLAGES, EXPLORED 

 BY LIEUTENANT J. G. PARKE, CORPS OF TOPOGRAPHICAL ENGINEERS, 1853-'54. 



ZOOLOGICAL HEPORT. 



WASHINGTON, D. C 

 1859. 



