vi PLANT DISEASES 



even apart from the subject of diseases, the cultivator 

 of plants possessed of such knowledge should succeed 

 better than another following blindly the ' rule-of-thumb ' 

 method, if there is any truth in the saying that ' knowledge 

 is power.' 



A certain amount of repetition will be observed ; this 

 is quite intentional. Not possessing the fascination of a 

 novel, it is not for a moment expected that the contents 

 of this book will be read from cover to cover even by 

 those most immediately concerned in its contents, but 

 rather that the particular disease respecting which infor- 

 mation is desired will be directly sought ; hence under 

 each disease curative and preventive methods are fully 

 explained, in preference to referring to another disease 

 where the line of treatment is somewhat similar. 



The numerous references to literature given indicate 

 my indebtedness to other workers in the domain of Plant 

 Pathology, to each of whom I offer my hearty thanks. 



GEO. MASSEE. 



