C ^7 ] 
r. Salts are diftinguiftied by the fenfe of tafte. 
Sapid in water. 
Soluble in water. 
2. Sulphurs are diflinguifhed by the fenfe of fmelL 
Odorous in inflammation and ignition. 
Soluble in oil, 
3. Metals are known by the fenfe of fight. ' 
Splendid, fufile in fire, very ponderous. 
Soluble in their appropriate acid menftrua. 
III. FOSSILS are neutral ftones, and are produced fron> eithe# 
one or both of the former. 
They are modified from Rocks or Minerals. 
I. Pertifactions. 
Imprejfed with the figure of fome natural objeft. 
a. Concrete. 
. Coagulated, with particles pfornlfcuoufly agglutinated, 
3. Earths. 
Pulverized, with the particles not united. 
VOL. VII. — C 
