| Text **G.350.1.10; Atlas **G.20.13 Dena, James Dwight, 1815-1895. Geology. With a folio atlas of 21 plates. Phila.: pr. by C. Sherman. 1849. xii, 756 pp. Illus. Meps. [United States exploring ex- pedition. Vol. 10. Text 4°. Atlas FO.
-U. S. 54.-5. ref. a>