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Ikiie a little bit of Gold or Silver, together with fomc 
Eead, 
I fet this Shell upon a large piece of lighted Charcoal, 
(uch as I judged fufficient for my purpofc, and blowing 
the Flame ot a Lamp through a Pipe, I caufed the Lead 
to evaporate, but the Gold ftay'd behind 5 yet it has fo 
happened fometimes, that the Melted Gold or Silver has 
made fuch a deep Pit in the Earthen Shell, that I have 
:been forced to make ufe of afecond, if I would clear itjof 
all the Lead. 
After I had evaporated the above-mention'd Lead, I 
put a little Tobacco Afties into one of thefe Earthen 
Shells, and in the fpace of two minutes, with a ftrong 
Flame of a very thick Tallow Candle, moft of the AQies 
was turned into fmall Globules, and the remainder was in 
a manner nothing but Salt. 
After this I toot 3 parts of a certain fmall Weight of 
the faid Tobaqco Athes, and proceeded therewith as I 
had done before, and after the fpace, as I judged, of a 
little more than two minutes, I took oft the Shell from 
the Fire, and found that the remaining AQies wcigh'd a 
very little more than two parts, and that the Shell, on 
that fide that was moft expofed to the Fire, was turn d 
into a Glafly Subftatjce. 
The Afhes thus prepared, which rather looktjike a 
Petrify*4 MattQr than Aflief , . I .pot into a Clean Glafs, and 
pour'd Water -upon /em 3 and ftirring it about with a 
Copper Wire feveral times, Met it ftand 24 hours, and 
then decanted off that which was fettled and clear to 
the fight, of which having put a very Xmall quantity upon 
ta jclean Glafs Plate, -and view'dvir thro feveraJ Microf- 
^copes, I always obferv'd, in a little time after, a great 
imany Salt Particles coagulated, that were neither Flat nor 
Slender, but moft of 'em as Thick as they were Long, and 
almofteach of em of a particular fhape, which it was ve- 
ry pleafent to fee 3 and tho I lookt upon a great many of 
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