C 174,1 ) 
f qr t&l SatisfaSion t defired a certain Gentleman, who 
1 knfew SWoaked every day, fave me a little of the 
Tobacco- afhes, as they came out of his Pipe, but none 
fuch as were throughly burnt • my Friend gave me about 
2 Thimbles full of the faid Afhes, of which I put part into 
a Glafs Tube, and pour*d Rain-water upon it, and whea 
I had mingled it well with the Water, and that the Aftes 
were fubfided, the A(hes took up one part of the faid 
Tube, and the Water ftood above it two parts more. 
Altho thefe Aflies were of a Grey colour, and had ali 
the Particles thereof appeared to the naked Eye to be en- 
tirely burnt, yet I could perceive, after the mixing of the 
Water together, that there were remaining fome exceeding 
fmall Particles of Tobacco, that were not turn*d into thefe 
Grey Aflies. 
After that the Water had ftood 24 hours upon the fa'd 
Aflies, I took a little of the fame, which to the fight ap- 
peared very clear 5 but when I obferv*d it with my Mi« 
crofcope, I faw that it was impregnated with a great ma- 
ny fmall Particles, which were about the fame Weight 
and Heavinefs with the Water, for they did oeither fut- 
fide to the bottom, neither did they emerge to the Super- 
ficies of the Water, 
I view'd this Water with five Diftind Microfcopcs, to 
fee what Sak Particles would come to light, after chat the 
Water was evaporated. 
Tab. 3. Fig. i. ABC reprefents three diftiod Salt Parti- 
cles, -which, tho they were Hexangular, and fo Tranfparent, 
as if they were made of Glafs, yet their Sides rofe into 
Pyramids, juft like Crifl:als grinded into fix Sides, ending 
all in (harp Points, only with this difference, that die 
Superficies of Fig- A- appear^ with fix equal fides, hu 
tho there could be no Superficies difcovef d in B and C, 
yet that which appeared but one Point, was, 1 doubt not, 
Hexangular alfo. 
Mmmrammrammm 2 Aj 
