A SYSTEM OF 
2B 
munis faturata^ ^ Sal Ammoniacum' jimm natu- 
rale. 
This is found, 
1. In fea water. 
2. In fait pits. 
It is formed in great quantities at the 
bottom of the falt-pans of the fait works. 
It attrads the moiflure of the air ^. 
SECT. XXIL 
D. Calcareous Earth united with the inflam- 
mable fubftance, "I'erra calcarea phlogifto 
mixta^ feu impregnata. 
Thefe have a very ofFenfive fmell, at leaft 
when they are rubbed, and receive their 
colour from the phlogifton, being dark or 
black in proportion as it predominates. 
SECT. XXIIL 
l. Calcareous Earth mixed with phlogifton 
alone, ^e^ya calcarea phlogifto fimplici rriix- 
ta. Lapis fuillus^ Foetid ftone and fpar, 
or fwine ftone and fpar. Perhaps the fmell 
* Perhaps fome kinds of limellones may exift that contain 
jRore or lefs of the acid of common fait, though they are 
f!ot yet difcovered. It is almoft incredible what quantity of 
fuch dilToIved calcareous earth is contained in fea-water ; and 
from which the teftaceous animals or Ihells get the materials 
for their fliells'or coverings. Perhaps Nature has a particu- 
lar and fecret method of producing a mineral alcali out of 
the calcareous earth, and has thus laid this earth, as well as 
the acid of common fait, together in the water, in order to 
combine them by degrees, and produce the common fait. 
CtiUar and particular to that fmall fpot of ground, and not found any 
elfe in the world) fibrous, and always accreting in radiations like 
a flar on the Septaiia. thence called Stella Septarii. D, C, 
of 
