Sed. IV. Agriculture and Vegetation. 67 



ing experiment was tried, though late in 

 the year. 



Exp. 29. A pot was filled with the pooreft 

 earth that I could find 5 this I (hall call 

 N i. N 2. fame earth with a third of 

 foap-rock. N 3. very ftrong clay with a 

 third of fand. N 4. the fame clay with 

 a third of foap-rock. N 5. foap-rock alone. 

 In thefe pots I fowed barley. 



THE plants feemed to grow beil at firfl 

 in N 2 : but afterwards N 4. produced 

 the moft. In N 5. the plants were longer 

 of appearing, and feemed more fickly than 

 the others. 



SECT. IV. 



Ofunburnt calcarlous bodies , and quick-lime. 



CHALK is reckoned, by the generality 

 of writers, a good manure for all wet 

 clay grounds j for it makes the earth loofe 

 F 2 and 



