Principles of Parti, 



furface from a clay-pit then employed in a 

 brick manufactory ; and as much fand was 

 mixed with the clay, it feemed to be of a 

 pure nature. After it had been diftilled for 

 two hours with a gentle fire, I got half an 

 oz. of pure water. After it had fuffered the 

 ftrongeft heat that I could give it in a port- 

 able furnace for nine hours, I found in- the 

 receiver two drams of a pellucid liquor, 

 which fmelt like the fpirit of hartfhorn, ef- 

 fervefced ftrongly with vinegar, and turn- 

 ed fyrup of violets green. The remainder 

 was very red. 



THUS, inflead of getting an acid, as the 

 chymifts aflert, I have got an alkaline vo- 

 latile fpirit. No oil appears from this ex- 

 periment j and, therefore, we may con- 

 clude, that if there is any oil in it, that 

 oil is intimately united and combined with 

 its earthy parts, analogous to what happens 

 in metals. 



THAT 



