Report on the botany of the expedition :  route on the forty-first parallel of north latitude under the command of Lieut. E.G. Beckwith (...) : route near the thirty-eighth parallels of north latitude, under the command of Capt. J.W. Gunnison (...) / 
by John Torrey and Asa Gray 
 - 18 pages, 10 plates ;  31 cm. 
<br/><br/> At head of title: Explorations and surveys for a railroad route from the Mississippi River to the Pacific Ocean; comprises part of vol. 2 of reports of this survey.  RBG copy 1 lacks plates; provenance Ferdinand von Mueller (inscribed by W.J. Hooker). Copy 3 bound with botanical reports from vol. 4 of this survey. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany--United States.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>United States--Discovery and exploration.
<br/><br/><label>Dewey Class. No.: </label>508.73