[ 209 J 



CLASS II. SALTS. 



65. Nat RUM. Ot a cauftic tafte ; effervefcing with acids. 



66. Borax. Frothing in the fire, and in a ftrong heat 



melting into a tranfparent glafs. 



67. MuRiA. Of a fait tafte, eafily foluble in water, 



changing nitrous acid into the nitromuri- 

 atic acid. 



68. NiTRUM. Of a cool fharpifli tafte, when moiftene^ 



with very ftrong fulphuric acid emitting 

 red vapours. 



69. MiRABiLE. Producing liver of fulphur in a white heat 



• with powdered charcoal : its watery folu- 

 tion Hot rendered turbid by a mixture of 

 carbonate of foda. 



70. AmaruM. Of a bitter tafte: its watery folution be- 



coming milky by a mixture of carbonate 

 of foda. 



71. Alumen. Of a fweetifh and very aftringent tafte: its 



watery folution not made turbid by pruf- 

 fiate of foda. 



72. ViTRiOLUM. Of an acid aftringent tafte : its watery fo- 



lution made turbid by a mixture of carbo' 

 nate of foda or prufliate of foda. 



VOL, VIT. — D d 



