[ *9* 1 



diflblve the metals, either by its animal, oily, or 

 acefcent qualities. 



This is not the only way, nor the word, by which 

 the butter may become impregnated with mifchief. 

 The greater the quantity of cream that is thrown 

 tip from the milk, the larger profits accrue to the 

 dairyman -, therefore he keeps it in the veflfels as 

 long as he can, and it is frequently kept 'till it is 

 very four, and capable of acting upon them ; if they 

 are of lead, a calx or fugar of lead is produced ; if 

 of brafs or copper, verdigrife. 



It is true, the quantity cannot be very great; 

 but this will depend upon the degree of fournefs, 

 and length of time which the milk ftands : — but in- 

 dependent of the acid, the animal oil in the cream 

 will diflblve brafs and copper. 



That an acid floats in the atmofphere of a dairy, 

 may be proved by placing a bafon of fyrup of 

 violets for a little time, and it will be found to 

 turn red. 



Then, gentlemen, if I am right in my conjec- 

 tures, as I am perfuaded I am, from the innumerable 

 experiments and obfervations which I have made 

 to fatisfy myfelf of the fact, and which would be 



trifling 



