On the minimal Calculus, ig^ 
already incruftihg Particles, and Co on fuccef- 
Tively : Ocherwife the Particles which float in 
the Fluid at fome Diftance from the Sides of 
the Veflel, could not be attracted thither^ for 
this Attraftion of Cohefion ads only near. 
Further, thefe Tartars are both obferved to be 
depofited in greatefi: Plenty, when the Sides 
of the VelTels have been already incrufled: 
They agree alfo in this that the animal and ve- 
getable Fluids depofit their incrufling Matter, 
in greateft: Plenty when they are in an atte- 
nuated State, and the more attenuated they 
are, the harder will their Incruftations be* 
They both agree alfo in this, that they yield 
in Diftillation more Air than any animal or ve- 
getable Subftance. With good reafon there- 
fore has the Calculus been called a Tartar by 
tnany. And as the Germans call the Tartar 
of Wine, Wine Stone, fo the Calculus may 
be called Urine Stone $ as alfo the Incruftati- 
ons from mineral and other Waters may be 
called Water Stones : But as they are all form- 
ed in the fame manntr, and have fevcral of 
the fame Properties in common, fo they may 
not improperly be called the Tartars of thofe 
fcveral Fluids* 
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