" THE LEAVES OF THE TREE Were FOR THE HEALING OF THE NATIONS." 59 



ently presenting themselves, it should be inferred that there must be a radical 

 deficiency in the knowledge we possess governing the hygiene of vegetation, or 

 how, otherwise, can the increase and deadliness in diseases be accounted for ? 

 There is no disguising the fact that the disease of the dropping of fruit from trees, 

 even after a well-advanced stage of growth, is becoming alarmingly prevalent and 

 increasing the area of country affected, The diseases of blight and scabs are in- 

 vading regions where it was thought they could not exist, and evidently these 

 parasites adapt tnemselves to climate and vegetation readily, while countless 

 tribes of insects are fastening upon every variety of plant life. A general re- 

 view of the horticultural field will show that notwithstanding the care which has 

 been bestowed by government and state, to prevent the spread of the pestilential 

 characters, the result has been the development of new and more dangerous ene- 

 mies, without a corresponding diminution in the number of the former." 



The real cause should now be apparent to every observing forester. 



