AN EXAMINATION 
BY DIRECTION OF THE 
HON. JEFFERSON DAVIS, SECRETARY OF WAR, 
OF THE 
REPORTS OF EXPLORATIONS FOR RAILROAD ROUTES 
FROM 
THE MISSISSIPPI TO THE PACIFIC, MADE UNDER THE ORDERS OF THE WAR DEPART-— 
MENT IN 1853-54, AND OF THE EXPLORATIONS MADE PREVIOUS TO THAT 
TIME, WHICH HAVE A BEARING UPON THE SUBJECT: 
BY 
CAPT. A. A. HUMPHREYS & LIEUT. G. K. WARREN, 
CORPS TOPOGRAPHICAL ENGINEERS, 
