-
by Pollock, Adelaide Lowry
Published 1925 -
by Larrison, Earl J. (Earl Junior), 1919-1987
Published 1981 -
Published 1918
-
Report of the Geological exploration of the fortieth parallel made by order of the Secretary of War according to the acts of Congress of March 2 1867 and March 3 1869under the direction of A A Humphreys chief of engineersConference Proceeding BookPublished 1870