The I N D E X. 



SAndarach, what, 21, 

 182 

 Sandarach- pyrites, what, 19 

 Sea, what it contributes to 

 the produclion of minerals , 



7 2 

 Selvages of veins, what, 38 



Shoads, what, 49 



The Silver in the pyrites. 

 212 feqq. Proportion 

 of, in the pyrites, ib. An 

 incidental part in the py- 

 rites, 213 

 Silver- pyrites, what, 18 



feq. 

 Sinter, what 83 Species of 

 84 Produclion of, 84 

 feqq. 282 



Sludge, what, 42 



Smalt produced from a me- 

 tallic earth, 129 feqq. 

 Sory, what, 280 



Spad, what, 39 



Specific of bodies, 359 feq. 

 Speife, what 179, 180 

 Speife - pyrites, what, 



Spelter, what, 187 



Squats, what, 49 



Stock work, what, 46 



Stone at the huts, what, 22 



feqq. 



Stone-pyrites, what, 22, 35 



Stones, figures of, 28 



Stones, colour of, owing to 



what, 75 



Stream- work, what, 49 



Sulphur, effecls of, on the 



white metals, and femime- 



tab, 30 On the red me- 



tals, ib. Manner of pro- 

 curing it, 333 feqq. 337 

 Sulphur in pyrites, 132 feqq. 

 Scarce any ore without it % 

 132 Not in tin-ore, bif- 

 muth ore, 132. Nor in 

 fmalt-cobald, ib. Readi- 

 ly mixing with what bo- 

 dies, ib. Greatly affetted 

 by iron and copper, 134. 

 Reduces iron and copper to 

 ores, ib. Proportion of, in 

 iron-pyrites, 135. Great 

 aclivityof,i$Q feqq. Vola- 

 tile acid of, how procured^ 

 159 feqq. 

 Sulphur-pyrites, what, iq 

 Sulphur-ruby, what, 184 

 Sulphur- flag, what, 136, 



npHermse, vjhence deriv- 

 * ing, 10 feq. 326 



Trichites, what, 280 



Tutia, what, 195, feq. 

 Botrytes, what, 196 



V. 



V 1 '. 



riol, what, 109. In the 

 pyrites, 272 feqq. Of 



what confi fling, 272 feqq. 



279> 28 3- fy'rtt of, 273. 



0/7 of, ib. ^aW 0/, 273. 



Metallic earth of, 274. 



feq. Proportion if, in, 275. 



^ SalU 276. D^« */* 



283 feqq. How produced, 



286. iVrf//Vf andfacliti- 



out 



