Letter to the Hon. Wm. M. Gwin, in relation to the railroad to the Pacific by the thirty-fifth and thirty-second parallels

by Humphreys, A. A. 1810-1883.
Published: [W.H. Moore, print.], 1858

A reply to certain portions of the minority report of the Hon. Z. Kidwell, of the House of Representatives, member of the select committee upon the Pacific railroad ... December, 1...

by Humphreys, A. A. 1810-1883.
Published: [publisher not identified], 1856

Report upon the physics and hydraulics of the Mississippi River upon the protection of the alluvial region against overflow; and upon the deepening of the mouths

by Humphreys, A. A. 1810-1883.
Published: J.B. Lippincott & Co., 1861

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 or...

by United States. Army. Corps of Topographical Engineers.
Published: [publisher not identified], Printed by A.O.P. Nicholson, 1855