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agulate upon the Water in fmaller and greater globular 
Particles ; and when we take out of it the Remainder 
of the thin Slices of Fat, which float upon the Water, 
and view them with aMicrofcope, we find that many 
of the fat Particles appear intire to the Eye ; and 
whereas they were before very finooth and even in 
their Sides, they were now changed into rough and 
uneven Particles ; fb that one Ihould be apt to think, 
that there were two different forts of Particles in the 
Fat, and that one fort melted more eafily than the 
other. 
Now in order to get thefe melted Particles of Fat 
out of the Water, without altering them, I made ufe 
of a round Glafs, and with it skimm’d the Superficies 
of the Water ; by which means fbme of the coagu- 
lated Particles fluck to the Glafs. Moreover, I did 
again melt fome of the fat Particles, which had been 
coagulated upon the Water, over a Coal Fire, a$ they 
lay in the Water ; and when they were again coagu- 
lated, viewing them with a Microfeope, I found the 
fmall fat Particles to be yet fmaller than thole that 
were melted out of the Water. 
In this lafi: Obfervation I obferved, with aftonifh- 
ment, the inconceivable Number of Veins and Mem- 
branes, which were diffus’d through the Fat, and the 
Multitude of feparated fat Particles, that were invol- 
ved in their feveral Membranes. 
After this, there was laid before me the Hind-Quar- 
ter of a flicking Lamb, over which w"as fpread what 
we call the Net, or Caul ^ and having cut off fome 
Pieces of the faid Net, or Caul, upon which there Was 
little or no Fat, with a Pair of Sciffars, and placing 
them before a Microfeope, I obferv’d again, that the 
fat Particles, where there were very few of them in- 
cluded between the Membranes, were of a more 
