MANUAL 



OF 



TREE DISEASES 



BT 

 W. HOWARD RANKIN^ A.B., Ph.D. 



ASSISTANT PKOPESSOR OP PLANT PATHOLOGY 



NEW YORK STATE COLLEGE OP AGRICULTURE 



AT CORNELL UNIVERSITY 



Neto g0rfe 



THE MACMILLAN COMPANY 

 1918 



All rights reserved 



