196 0 ?t the Aittmal Calculus. 
8. From the great Quantities of Air, that 
are found in thefe Tartars, we fee that unelaf- 
tic Air Particles, which by their ftrongly at- 
trading Property, are fo inftrumental in form- 
ing the nutritive Matter of Animals and Ve- 
getables, is by the fame attraftive Power, apt 
fometimes to form anomalous Concretions, as 
the Stone, (^c. in Animals, efpecially in thofe 
Places where any animal Fluids are in a ftag- 
nant State, as in the Urine and Gall-Bladders, 
They ftrongly adhere alfo to the Sides of U- 
rinals, &c, the like tartarine Concretions are 
alfo frequently formed in fome Fruits,, parti- 
cularly in Pears 5 but they do then efpecially 
coalefce in greateft Plenty, when the vegeta- 
ble Juices are in a ftagnant State, as in Wine 
Veflels, 
9. This great Qiiantity of attrafting, iinc- 
laftic Air Particles, which we find in the Cal- 
culus^ fliould rather encourage than difcourage 
ns, in fearching after fome proper Diflblvent 
of the Stone in the Bladder, which in the 
Analyjis of it is found to be well ftored with 
aftive Principles, fuch as are the great Agents 
in Fermentation. For Mr. Boyle found there- 
in a good Qiiaatity of volatile Salt, with fome 
Oil, and we fee by thefe Experiments, that 
there 
