Gray, Asa, 1810-1888. United States Exploring Expedition (...) 1838 (...) 1842 under the command of Charles Wilkes : Botany, Phanerogamia. vol.1 / By Asa Gray - 777p., of 4p. : 100pls. ; 35 & 55cm. References: TL-2:2130. Subjects--Topical Terms: Botany--United States.Cryptogams--United States. Dewey Class. No.: 581.973