AGRICULTURE WITH CHEMISTRY. 237 



the authority of others who have written on this sub- 

 jea. 



By these writers it is asserted, that dung contains oil: 

 and to this oil the application of lime is recommended, 

 with a view to render it soluble in water. 



No expressions in chemistry or in agriculture have been 

 so inJLulii iously made use of as those of sulphur and of 

 oil. By the word sulphur, brimstone is to be understood; 

 and b^- the word oil, those smooth unduous substances 

 capaLi. of bein^^ injiamed or burned^ produced in the bodies 

 of animals by the process of animalization, and in the 

 €ee<ls and kernels of fruits and plants by the j:)rocess of 

 vegetation. To which are to be added bituminous oils, 

 and cmp\ rcumatic oils, obtained bv the distillation of 

 animal, vc'^ctublc, and some mineral sid)stances, such as 

 fosbiic coaJ, 8:c. to none of which the juice of dung or 

 dung-l)ills bears th-e smallest resemblance; on the con- 

 trary, It wiU Ic found to be a mucilaginous neutralized 

 saline extra(fti\ , ii(pior, wliL-nce no oil, cither from it or 

 from dung, cai ' • procured i)ut by distillation, or theap- 

 plicuLxun of fir>. ; in whicU case oil cannot be said to be 



disen- 



