Rodgers, Andrew Denny <br/><br/>
American Botany, 1873-1892  Decades of Transition 
Andrew Denny Rodgers. 
 - New York  Hafner Pub. Co.  1968,c1944. 
 - vii, 340 p.  ports. 
<br/><br/>Bibliographical footnotes. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Gray, Asa 1810-1888. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany--History.--North America<br/>Botanists, American.