ipo Amlyfts of the Air. 
I diftilled in the fame manner, as the 
above mentioned calculus^ fome ftones taken 
out of a human gall bladder, they weighed 
52 grains, fo their bulk was equal to f part 
of a cubick inch, as I found by taking their 
fpccifick gravity. There was 108 cubick in- 
ches of elaftick Air raifed from them in di- 
ftillation, a quantity equal to 648 times their 
bulk i much the fame quantity that was 
raifed from the calculus. About f part of 
this elaftick Air was in 4 days reduced in- 
to a fix’d ftate. There arole much more 
oil in the diftillation of thefe Stones, than 
from the Calculus^ part of which oil did 
arife from the Gall which adhered to, and 
was dryed on the furfaccs of the Stones, 
which oil formed large bubbles, like thofc 
which arofe in the diftillation of Deers Horn 
/>. 1S7. 
A fmall Stone of the Gall Bladder, which 
was as big as a Pen, was diftblved in a Lix- 
ivium of Sal Tartar in feven days, which 
Lixisium will alfo diflblve Tartar i yet it 
will not difiblve the Calculusy which is more 
firmly united in its parts. 
A quantity of Calculus equal to one half 
of what was diftilled, 1 15 grains, did, 
when 
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