I 88 ] 



SECT. VI, 



Mineralogy. 



And join both profit and delight in one *, 



Creech. 



i. Tte'lHE manner of working mines, and th'e 

 X methods employed in getting, breaking 

 and extracting the ores \ the tools and machines 

 employed for each of thefe purpofes, are fub- 

 jects worthy of enquiry. Is gunpowder ever 

 ufed to blaft the ftones or ores ? The manner in 

 which the ore or metal is found under ground, 

 whether in perpendicular veins, or in vicinity 

 to them in horizontal flat itrata, loofe pieces, 

 or in folid continued bodies ; in what kind of 

 ftone, and at what depth ; the means of carry- 

 ing off the water when prefent in the mines. 

 The vapors found in them, whether mephitic and 

 noxious, or inflammable when fire or light comes 

 in contact with them. 



2. The manner in which white copper, re- 

 fembling filver, is manufactured, and the vari- 

 ous proceffes whereby it is done. 



3. The operations ufed in extracting the 

 metals from the refpective ores, with fpecimens 

 and names of the ores, and the places where 

 they are procured ; the products yielded from 

 the ores by fufion ; the fluxes added to pro- 

 mote fufion, or the fubftances to prevent vola- 

 tilization, and whatever is fubfervient towards 



* Simul et jucunda et idonea dicere vita?. 



Hor. 

 refining 



