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An illustrated flora of the northern United States Canada and the British possessionsfrom Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102d meridianBookpar Britton, Nathaniel Lord, 1859-1934
Publié 1913 -
par Frye, Theodore C. (Theodore Christian), 1869-1962
Publié 1914 -
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 BookPublié 1870
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par Cooper, J. G. (James Graham), 1830-1902
Publié 1994 -
Travels in the interior of America in the years 1809 1810 and 1811;including a description of upper Louisiana together with the states of Ohio Kentucky Indiana and Tennessee with the Illinois and western territoriesBookpar Bradbury, John, 1768-1823
Publié 1817 -
par Nisbet, Jack, 1949-
Publié 2009 -
Journal kept by David Douglas during his travels in North America 1823-1827together with a particular description of thirty-three species of American oaks and eighteen species of Pinus with appendices containing a list of the plants introduced by Douglas and an account of his death in 1834Bookpar Douglas, David, 1799-1834
Publié 1914 -
Flora of southern British Columbia and Vancouver islandwith many references to Alaska and northern speciesBookpar Henry, Joseph Kaye, 1861-1930
Publié 1915 -
par Piper, Charles V. (Charles Vancouver), 1867-1926
Publié 1906 -
Journal kept by David Douglas during his travels in North America 1823-1827together with a particular description of thirty-three species of American oaks and eighteen species of Pinus with appendices containing a list of the plants introduced by Douglas and an account of his death in 1834Bookpar Douglas, David, 1799-1834
Publié 1959 -
par Munger, Susan H.
Publié 2003