EXPLORATIONS AMD SURVEYS FOR A RAILROAD ROUTE FROM THE MISSISSIPPI RIVER TO THE PACIFIC OCEAN. 
> WAR DEPARTMENT. 
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t THE THIRTY- FIPTH PARA ARALLEL, UNDER THE COMMAND OF LIEUT. A. W. WHIPPLE, 
e Le: "ToPoG POGRAPHICAL ENGINEERS, IN 1853 AND 1854. 
