AGRICULTURE WtTH CHEMISTRY. 237 



the authority of others who have written on this sub- 

 ject. 





 By these writers it is asserted, that dung contains 0/7: 



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 injudiciously made use of as those of sulphur and of 

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

 and by the word oil, those smooth unctuous substances 

 capable of being inflamed or burned, produced in the bodies 

 of animals by the process of animalization, and in the 

 seeds and kernels of fruits and plants by the process of 

 vegetation. To which are to be added bituminous oils, 

 and empyreumatic oils, obtained by the distillation of 

 animal, vegetable, and some mineral substances, such as 

 fossile coal, &c. to none of which the juice of dung or 

 dung-hills bears the smallest resemblance ; on the con- 

 trary, it will be found to be a mucilaginous neutralized 

 saline extractive liquor, whence no oil, either from it or 

 from dung, can be procured but by distillation, or the ap- 

 plication of fire ; in which case oil cannot be said to be 



disen- 



