in the Pyrites. 19^ 



« of its being collected in a cleaner manner. You 



4 mutt chufe that fort which is beautifully white and 



* light, and will bear rubbing eafily, and clean, &c. 

 ' Bell- founders may, indeed, collect a little of it, but 

 4 fo very little, and befides, not very pure, that it 

 4 fcarce deferves notice. The bell- founder, by 

 4 whom I faw pemrkolyx made, allured me, he ne- 



* ver fold it buc to particular perfons, who came 

 4 and begged a drachm of him, to put into wine, as 

 4 a drink in a fever •, a[ the fame time averring it 

 4 to be an infallible remedy in that cafe ; but I ne- 

 4 ver tried it, nor would I advife it to any body 

 ■ elfe, &JV.' 



Befides this nihilum^ there is another form, where- 

 in zink lies concealed, namely, tutia, an Arabic, 

 at lead an oriental term ; the reafon of which is as 

 little underftood, as why calamy-flowers come to 

 be called nil. It might originally have denoted a 

 kind of drying, aftringent plant, as the plant tur- 

 bub, the /podium, or afhes of bones and plants, 

 have been denominated from minerals, having, in 

 ufe and virtue, fome thing in common with, or re- 

 fen bling fuch vegetable or animal parts. In like 

 manner the term tutia was introduced into the mi- 

 neral kingdom - y and as we had this commodity ori- 

 ginal.) from Alexandria, it was called Alexandria, 

 as it (till is at this day, from what part foever it 

 comes. This appellation, 'tis true, is unknown in our 

 fmcking-huts, and confequently does not caufe that 

 confufion we experience from the term hut -nothing, 

 Nov. ; by all the writers on 



the fubjecl co the brafs huts, and workers in brafs, 

 yet I am at a lots 10 conceive how this tutia can 

 differ from the calamy-ni', as both of them arife in 

 the making and fmelting of brafs. Nil is calamy- 

 flowers and a white powder \ tutia appears like dark- 



O 2 grey 



