23 



ful discovery, I shall consider my pains well 

 bestowed, and myself amply rewarded. 



The first thing necessary to be done, is 

 to investigate the causes. 



The principal of these appear to me to 

 be Vermin, Constriction of the J3ark> and 

 superabundant Blossom. 



These causes, though they may exist se- 

 parately, are often combined together, and 

 depend for their continuance and extension 

 on one another, 



As the first of these causes, viz. Vermin^ 

 appears to be the most common and most 

 general, and likewise as the other causes 

 will, in a great measure, be obviated by the 



