'/^M^^'.^J^^-/' 



^n 



THE ORIGIN 



OF 



FLOKAL STEUCTUEES i 



THROUGH INSECT AND OTHER AGENCIES 



BY THE 



KEY. GEORGE HENSLOW 



M.A, F.L.S., F.G.S. 



PROFESSOR OF BOTANY, QUEKN'S COLLEGE 

 AND LECTURER TO ST. BARTHOLOMEW'S HOSP. MED. SCHOOL, LONDON 



AUTHOR OF "EVOLUTION AND RELIGION," "CHRISTIAN BELIEFS RECONSIDERED 

 "BOTANY FOi: CHILDREN," "FI.OKAL DISSECTIONS," ETC. 



WITH FJCtHTY-FJGHT illustbations 



LONDON 

 KEGAN PAUL, TRENCH & CO., 1, PATERNOSTER SQl^ARE 



1888 



