Darwin, Charles <br/><br/>
On the various contrivances by which British and foreign orchids are fertilised by insects, œb and on the good effects of intercrossing / 
Charles Darwin ... 
 - London :  Cambridge University Press,  2011 
 - vi, 365, [1] p. :  illus., fold. pl. ;  22 cm. 
<br/><br/> Includes index  This edition first published 1862 
<br/><br/><label>ISBN: </label>9781108027151 1108027156 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Orchids--Reproduction<br/>Orchids--Pollination<br/>Pollination by insects