THE INTERNATIONAL SCIENTIFIC SERIES 



THE ORIGIN OF 

 FLORAL STRUCTURES 



THROUGH INSECT AND OTHEK AGENCIES 



BY THE 



REV. GEORGE gENSLOW, M. A., P. L. S., F. G. S. 



PBOFESSOR OP BOTANY, QUEEN^S COLLEGE, AND 



LXCTDBJCR TO ST. BARTHOLOKEW^S HOSPITAL MEDICAL SCHOOL, LONDON 



AUTHOR OF "EVOLUTION AND BELIOION,^^ "CHRISTIAN BELIEFS BECONBIDBBED/' 



" BOTANY FOB CHILDBEN," " FLOBAL DISSECTIONS," ETC. 



WITH EIOBTY-EIGHT ILLUSTRATIONS 



NEW YORK 



D. APPLETON AND COMPANY 



1888 



1-3 



