168 ON THE RUST, kc. IN WHEAT. 



«* effects, that they will not in future be felt as 

 " a national calamity. For that purpose, how- 

 " ever, it is necessary that the diligent farmer 

 " should seize every opportunity of improving 

 ** his knowledge in the diseases of wheat j should 

 " note down all the circumstances connected 

 " with the subject as they occur, and should 

 " compare his observations with those of others ; 

 " that whether the causes of rust are general or 

 ** local, they may as much as possible be ob- 

 " viated." 



To this I will beg leave to add, that however 

 repeatedly, the diligent farmer may have been 

 misled by theory, he cannot be justified in wholly 

 opposing or neglecting science. The opinions I 

 have here endeavoured to explain, are grounded 

 on demonstrative practical experiment. And as it 

 is in the power of every farmer to make the same 

 demonstration, I trust every one will consider 

 it, in justice, due from all, to do so, before they 

 indulge in speaking lightly of them, or in treat- 

 ing them with neglect. 



