AGRICULTURE: WITH CHEMISTRY. 237

the authority of others who have written on this sub-

ject:

By these writers it is asserted, that dung contains o7/: and to this oil the application of lime is recommended,

with a view to render it soluble in water.

No expressions 10 rehen nistry orin agriculture have been so injudiciously made use of as those si 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 sxfamed 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, ss Neg and some mineral substances, such as fossile coal,&c. tonone 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 liquer, 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-

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