32 "The Principles of Part I. 



SECT. VI. 



Of the chalky foil. 



I SHALL fay little about this foil, becaufe, 

 as it is to be found only in few counties 

 in England, I have not yet met with it; 

 and I (hall relate nothing on the faith of 

 thofe who reafon without the afliftance of 

 experiment. 



CHALK is an abforber of acids, and 

 has no oleaginous particles in its compo- 

 fition, but is a powerful attracter of them. 

 Hence the proper manure for this foil muft 

 be thofe bodies which contain moft oil, 

 as hair, rags, &c. It feems to have but a 

 very weak attraction to water ; and, there- 

 fore, will be generally too dry. This foil 

 is obferved by farmers to cake after heavy 

 rains. 



SECT. 



