Bulletin 181. March, 1900. 



Cornell University Agricultural Experiment Station. 



ITHACA, N. Y. 



HORTICULTURAL DIVISION. 



I'OLLINATIOB IB ORCHAKDS. 



«5;^fifc- 



By S. W. FLETCHER. 



PUBLISHED BY THE UNIVERSITY, 



ITHACA, N. Y. 



1900. 



