C ^^s 3 
Fire does; it dilTolves Animals, and Vegetables, and 
Minerals ; and has many Effefts of Fire. Therefore 
from an Union of iheft two very fiery Spirits refulrs a 
much greater quantity of igneous Matter. 
That Fire is very apt to incorporate with Fluids, and 
even fuch as have had but a fmaii Communication with 
it, an Experiment which I formerly exhibited at a Meet- 
ing of the Royal Society^ makes probable. 
We took of Spirit of Wine that was highly reftified 
a Wine-Glaft half full, and placed a tender Weathcr- 
Glafs or Thermometer in the Glafs, and then put a 
Spoonful of Water to it, this immediately warmed the 
Liquor, and made the Weather-Glafs afcend two Inches 
at leaft : The Liquor in the Weather-Glafs fubfided as 
the other Mixture grew cold. I made it more fenfible 
to the Touch by filling the Palm of the then Prefident's 
Hand with Spirit of Wine, and putting a fmall quan- 
tity of cold Water into the fame Hand, which made it 
fcnfibly warm his Hand, as well as others that made 
the Tryal. But from this Spirit, which is too Volatile 
to endure much Communication with the Fire, you may 
expeit only a mild tepid heat ; 1 am apt to believe, that 
there is fcarce any thing which lies long in the Fire, but 
is apt to retain fome igneous Particles; which does ap- 
pear to be fo in all fixed Salts, in Quick- Lime, and more 
particularly in Iron. If you take a Bar of Iron, though 
©f a Hundred Years old, and file off about a Pound of 
it, and then you do mix and imbibe thefe Filings with 
a due proportion of Water, enough to make the whole 
juftmoift,' the Fire, which all this while lay concealed 
in the Iron, being more difpoftd to enter into the fluid, 
does by thefe means warm the v/hcle Maft. The Iron 
gained this heating Quality by Fufion in tbofe fierce 
Fires which firft feparated the Metal from ths Ore. For 
it is not in the Nature of the Ore before Fafion to emit 
any heat, as I have found by mixing Water with in 
li There 
