EXPLORATIONS AND SURVEYS FOR A RAILROAD ROUTE FROM TI1E MISSISSIPPI RIVER TO THE PACIFIC OCEAN. 
WAR DEPARTMENT. 
ROUTE NEAR 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 REPORT. 
WASHINGTON, D. C. 
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