THE 



VAEIOUS CONTKIVANCES 



BY WHICH 



ORCHIDS ARE FERTILISED BY INSECTS. 



By CHAELES DAEWIN, M.A.^ F.E.S., &0, 



SECOND. EDITION, REVISED. 



WITH ILLUSTRATIONS. 



NEW YORK: 

 D. APPLETON AND COMPANY, 



549 AND 551 BROADWAY. 



1877. 



