( <4 ) 
and Succus Pancreaticus may contribute to the For- 
mation of it, is a Difquifition I (hail not here enter 
upon, but leave it to the Enquiry of Phylicians. 
In regard of the Parts whereof Phofphorus con- 
lifts, it may be confidered as the Soot of a deflagra- 
ted Oil ■, and fo may every combuftible Subftance be 
look’d upon as a kind of Pbofpho, us, as confifting of 
inflamable Materials. 
Phofphorus is more immediately compounded of 
a Salt tending to the Nature of Sal Ammoniac, . of 
an urinous Salt, of an Acid, and an oily Phlogifton 
with a fubtile Earth ■, by the Means of thefe Salts 
exifting in the Urine, the Faeces Alvina are the bet- 
ter elixirated, and thofe Particles extracted which 
contribute to the forming the Pbofpho us. Con- 
cerning the Fixity of the urinous Salt, I have faid, 
enough already, fo (hall not repeat it here. With, 
thefe Salts are very intimately combined in the Phof 
phons oleaginous or fat Particles, which are. the 
proper Materials of that fubtile Phlogifton , the true 
Domuncula Ignis , and indeed the main Conftituents 
of the whole Compound. 
As for the Preparation of this wonderful Pro- 
duction, it is done by diftilling the Saponaceus 
Magma in a clofe Veifel, with a reverberatory Fire, 
much ftronger than that ufed for the Diftillation of 
Aqua fortis, or the other Mineral acid Spirits ; 
the reft of the proper Encheirefs belongs only to 
the Operator to manage fecundum Artem. When 
this Operation fucceeds rightly, there comes forth, 
Firft, a thick, unftuous Oil, Secondly, a more tub- 
tile 
