( T778 ) 
Tis true, we fee daily in Fluid Subftances, thro* a 
Secret Inclinatiouv that Homogeneous Particles coagulate 
together, but how the Particles of Sulphur, that are as it 
were glew*d down to the Glafs, fhould aflfemble and unite 
in one body, is very wonderful to behold. 
I had one SnaiUftiell , reprefented here by Fig. 4. 
K L M N O*, which was extraordinary heavy in propor- 
tion to its bignefs, and which feem'd to me not to be 
quite whole, but that fome part of it v*as broken off, 
as at L M. 
I endeavoured to break this Shell to pieces with my 
Fingers, but was not able, wherefore I laid it upon fome 
Lead, and fo broke it to pieces. 
I wanted no Microfcope to view thefe broken pieces, 
which feem d to be full, excepting the flendereft part of 
the Tail, with a pale yellowilh fubftance, that was viGble 
enough to the naked Eye. 
To fatisfie my felf about the faid appearing Metallin 
Particles, I put about a fourth part of the laft mention d 
SnaiJ-fhell into a Glafs, and brought it to fuch a ftrong 
Fire, that the Glafs Was upon the melting 5 in doing 
which, I feparated a great deal of Sulphur (in proporti- 
on) from it, and when I took the remaining Matter out 
of the Glafs, I faw that all the Sulphur was not extrafted 
from it, for I difcovered feveral Sulphureous Particles 
lying in the remaining Matter, which one would take 
for a black burnt Earthy and they were divided from' 
each other in longifli Particles, each of em having 
diftinft Figures, agreeable to the places v/hich they were 
to fill. 
I feal'd up hermetically the Glafs wherein the extraft- 
ed Sulphur was'coagulated, to the end that no Moiftnefs 
or Vapours ftiould get into it, nor none come out, and 
then I view'd thofe Sulphureous Particles that had lain 
fartheft from the Fire , and faw that the Glafs ( tho* 
nothing thereof was perceptible to the naked Eye) was 
cover'd 
