t 248 ] 



he knew to be perfedly clear: the drills were two 

 feet diftant; the fets one foot diftant in each drill. 

 He then planted on the fame ground four rows 

 with fets fronn curled potatoes, at equal diflances; 

 in each row were about twenty fets. 



Lot I ft, the curled ftate* 



No. I. without manure, 

 2* in fait. 



No. 3. in foot, 



4. in quick lime. 



Lot 2d, the clear fets. 



No. I. without manure, j No. 3. in foot, 



2. in fait, j 4. in quick lime. 



Thofe planted in fait and foot in both lots, were 

 deftroyed. In Lot i. No. i and 4, all curled. 

 Lot 2, No. I and 4, quite clear. ^ 



This experiment was made on a fuppofition 

 that the infecft lodged in the ftty and muft be de- 

 ftroyed on planting. But of that he is not fully fa- 

 tisfied. He repeated fait, foot, and quick lime, 

 on the branches of feveral curled potatoes. Salt 

 deftroyed all he touched v;^th it. Lime and foot 

 had, he thought, a partial effeft on the plants. 



After 



