333 



The Uses 



the fineft parts, exuding through tne pores oF the 

 iron, and coagulated by the cold air, yields pure 

 drop- fulphur. Whence, in fummer- weather, every 

 morning about fun-rifing, in harveft and winter 

 every evening, the fulphur is removed out of the 

 receivers, and the defulphurated pyrites out of the 

 pots, and replaced with frefh as before. The fulphur 

 is again melted in an immured pot over a gentle 

 fire, in order to its fining, and then cad in the 

 tifual moulds. The defulphurated pyrites is laid on 

 heaps in the open air, and the following year, ac- 

 cording as it happens to be moiftened by rain, be- 

 gins to take fire, and burn fo long, till all the ful- 

 phur ^ ftiil remaining therein, be quite confumed. 

 Thus far the more antient workers went; but the 

 new, difcovering that the defulphurated heap was 

 impregnated with vitriol, and the more fo, the 

 longer it lay expofed, conveyed this refufe into large 

 veflels, poured water thereon, and made a lie. But 

 at prefent, it is put into lead- pans, and boiled for 

 fbme hours with water : from the former, this lie 

 Is conveyed into other lead-pans therein to boil, till 

 the vitriol- mafter fees it is fit to moot, who mull 

 have the dexterity of attempering it by pouring in 

 forne of the firft lie. Now, after the lie is boiled, 

 or foaked to a proper degree of thicknefs, the fire 

 is lowered, and the lie poured into coolers, there to 

 Hand, till the vitriol moots to cryftalson the birchen 

 twigs put therein. What remains unfhot, is again 

 boiled along with new defulphurated and vitriolated 

 'pyrites in the fecond pans, and further brought to 

 cryftallifation. The number of huts is two, of 

 pans to each hut four ; always two for crude lie, 

 and two for good lie •, each weighing thirty cent- 

 ners, 2nd (landing on large iron grates, that they 

 may come by no damage : and yet the pans for the 

 good lie laft not above five or fix years, and thofe 



for 



