DISEASES 



OF 



ECOI^OMIC PLANTS 



BY 



F. Vt STEVENS, Ph.D. 



PROFESSOR OF BOTANY AND VEGETABLE PATHOLOGY OF THB 

 NORTH CAROLINA COLLiiGE OF AGRICULTURE AND 

 MECHANIC ARTS, AND BIOLOGIST OF THE 

 AGRICULTURAL EXPERIMENT STATION 



^ AND 



J.*^^ G. HALL, M.A. 



ASSISTANT IN VEGETABLE PATHOLOGY IN THE NORTH 

 CAROLINA AGRICULTURAL EXPERIMENT STATION 



THE MACMILLAN COMPANY 

 1915 



All rights reserved 



