[ 288 ] 



the different inherent qualities of (oils apparently 

 fimilar, &c. But without the knowledge of thefe 

 properties and qualities, miftakes have been and 

 will be committed by farmers, and difappoint- 

 ments in their crops will happen, which they know 

 not how to account for, nor in what manner to 

 prevent in future. A remarkable inflance of the 

 neceflity of making experiments on the different 

 qualities of foils, may be feen in the Complete Eng- 

 lifh Farn^er, p. 104, 5. 



Were thefe things better underftood, they would 

 not continually manure their ground with dung, 

 where lime and marie are eafily procured, nor con- 

 ftantly repeat lime on the fame field, becaufe it 

 carried feveral good crops while abounding with 

 vegetable food: they would not take thiee exhaufl- 

 ing crops in fuccefTion, nor proceed in the famQ 

 eourfe of crops on every kind of ibii. 



Thefe miftaken notions and pradices cannot be 

 removed merely by the diftributions of premiums. 

 The ideas of illiterate farmers will not be much 

 re6lified by many of our publications on hufbandry, 

 which fome cannot, and the generality are toa 

 opiniated to read : Add to this, that whoever im- 

 plicitly follows t;he tA^eoiy contained therein, will 



often 



