[ 333 ] 



'im mmm m *§b» m m* m as* *@8»: 



CHAP. XIII. 



Containing the feveral Uses of the P y r i t I s j 

 and, i. with refpec! to the making of Sulphur. 



T)YRITES is worked for fulphur, either exprefiy 

 or incidentally ; in the one cafe it is driven, or 

 forced off in pipes or retorts, in the other pro- 

 cured in the ccurfe of roafting the ores : by the 

 former method, both here, at Friberg, and at 

 other places •, by the latter, particularly at the Hartz, 

 as follows, according to Lohneifs *. 



■ They take, fays he, of the fmall ore, that Is, 



* both of the fmall fwetp from the ore of the 



* grooves, and from the vitriol works or lies, call- 



* ed alio vitriol-fma I and kernel '-f*, and fhoot it on 

 4 a heap one foot high by twenty broad and long ; 

 c on this there is wood laid clofe together, the 

 c whole breadth of the fmall ore, and piled three 

 1 foot high ; then on this wood the ore is jhot in 



* greater or fmaller pieces, as it comes to hand ; 

 c and, to one road, are taken between 1500 and 

 c 1600 meafures, each weighing 5 and 1 half cent- 



* ners : the roads are made fquare, and raifed nine 



* foot high, and covered all over with moidened 

 1 fmall-ore for a large hand thick, arid (truck clofe 

 c and firm. From the middle of the road is 

 c reared a brand of dry wood, reaching quite thro* 

 J the ore, and over-topping the road. The road 



* being 



* Eericht vom Bergwerk, p. 80. 



-J- Kernel is the bell or richeft fmall ore, 



