Statement of responsibility: under the direction of the Office of Explorations and Surveys, A.A. Humphreys, Captain Topographical Engineers, in charge ; by order of the Secretary of War.
Physical Description
Extent: 131, [1], 154, [6], 30, [2], 6, [2], 31, [1] p., [38] leaves of plates (12 folded) : ill. (8 col.), 4 maps (2 col.) ; 30 cm.