they deposit an oily substance which 

 stops up the pores of the bark ; and, by 

 the stems being gnawed or otherwise 

 bruised, the trees being unprotected and 

 unscreened from such depredations. It 

 cannot, therefore, be thought wonderful 

 that our young trees, when planted out 

 in the usual mode, whether in fields or 

 orchards, should be subject to diseases of 

 all kinds, as such neglected treatment 

 naturally exposes them to injuries of all 

 kinds. 



It is an axiom that holds true through- 

 out all nature, that great evils arise firom 

 smaller ones, and thus w^e trace causes 

 from effects ; the greatest crimes which 

 the human mind and heart has ever per- 

 petrated, had their origin in the un- 

 checked licentious principles of the youth- 

 ful mind of the malefactor. And many 

 diseases, of the most dreadful sort, are 

 brought on by degrees, and have their 

 origin in the neglect of stopping those 

 irregularities to which we are prone in 

 our youth, and which produce in early life 

 languor similar to old age. And effects 



