( * 3 ) 
in Animals by itfelf; but when formed out of Urine, 
by the Means of Putrefaction and Fire, its principal 
Contexture is found to confift of a fubtile Acid con- 
centrated by the Salt of Urine, and of a fat depu- 
rated Oil. 
Phofphorus affords us fo many wonderful Phe- 
nomena, that to explain them all would take up a 
large Treat ife^ a perfect Phojphorologia , being 
what would exceed the Limits of this fhort Ac- 
count. 
The Phlogijtic Part is fo flightly connected 
with the other Principles, that the leafl Motion, 
FriCiion or Warmth, fets it on fire. 
The fixed Part feems to confift chiefly in the 
acid Salt of the Urine, which is at firft fo intimately 
concentrated with the Phlogifick Part, as in Defla- 
gration to be hurried up or fublimed along with it ; 
yet being by this Operation freed from if, it becomes 
fix’d, and can by no Degree of Heat be again fub- 
limed. 
Phofphorus may be called an urinous Sapo, or 
Soap, as it confifts of the faline and oleaginous Parts 
of the Urine: But Phofphorus is not to begot info 
great Plenty out of Urine alone, as when the Feces 
Alvine are elixirated along with it, and then brought 
to a Magma fit for Diftillation : Nor is there fo 
great a Quantity of Phofphorus in the Urine of 
other Animals, as of Men ; nor is it to be got from 
any Natural Productions, or any Parts of Animals 
or Vegetables in their crude State, before they have 
undergone Concoction in the Stomach of an Animal. 
How far therefore the Liquor Gafrkus, the Bile, 
I and 
