Report of the geological exploration of the fortieth parallel
Professional papers of the engineer's department, U.S.army ;
Professional papers (United States. Army. Corps of Engineers) ;
United States Geological Exploration of the Fortieth Parallel (1867-1881)
King, Clarence, 1842-1901.
Hague, A. (Arnold), 1840-1917.
Emmons, Samuel Franklin, 1841-1911.
Hague, James D. (James Duncan), 1836-1908.
Meek, F. B. (Fielding Bradford), 1817-1876.
Hall, James, 1811-1898.
Whitfield, R. P. (Robert Parr), 1828-1910.
Ridgway, Robert, 1850-1929.
Watson, Sereno, 1826-1892.
Eaton, Daniel Cady, 1834-1895.
Bien, Julius, 1826-1909, engraver.
made by order of the secretary of war according to the acts of congress of March 2, 1867, and March 3, 1869, under the direction of ... A.A. Humphreys, chief of engineers, by Clarence King, U.S.geologist.