f LNTERNATIONAL SCIENTIFIC SERIES 



THE ORIGIN OF 

 FLORAL STRUCTURES 



THROUGH INSECT AND OTHEE AGENCIES 



BY THE 



REV. GEOEGE HENSLOW, M. A., F. L. S., F. G. S. 



PROFESSOR OF BOTANY, QUEEN'S COLLEGE, AND 



LECTURER TO ST. BARTHOLOMEW'S HOSPITAL MEDICAL SCHOOL, LONDON 



AUTHOR OF "evolution AND RELIGION," "CHRISTIAN BELIEFS RECONSIDERED,' 



"botany FOR CHILDREN," "FLORAL DISSECTIONS," ETC. 



WITH EIGHTY-EIGHT ILLUSTRATIONS 



NEW YORK 

 D. AP PL ETON AND COMPANY 



1888 



