C '7 1 



t. Salts are diftinguifhed by the fenfe of tafte. 

 Sapid in water. 

 Soluble in water. 



2. Sulphurs are diftinguiflied by the fenfe of fmclK 

 Odorous in inflammation and ignition. 



. Soluble in oih 



3. Metals are known by the fenfe of {ighti 

 Splendid, fufile in fire, very ponderous. 

 Soluble in their appropriate acid menftrua. 



I Hi FOSSILS are neutral ftoneSj and are produced from eithef 

 one or both of the former. 



They are modified from Rocks or Minerals, 



I. Pertifactions. 

 Imprejfed with the figure ©f fome natural objedt. 



2i Concrete. 



Coagulated, with particles promifcuoufly agglutinated, 



3» Earths. 



Pulverized^ with the particles not united* 



VOL. VIT. — C 



