PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



Classification of medicinal forms — Continued. 

 I. — Crude vegetable drugs — Continued. 



II. — Chemical products. 



Metals. 



Metallic o^des. 

 Metallic salts. 



Mineral acids. 



Vegetable a 1 k a - 

 lies. 



Vegetable acids. 



Salts of vegetable 

 acids. 



Salts of vegetable 

 bases. 



Neutral organic 

 substances. 



Elementary bodies having a metallic lus- 

 ter, good conductors of heat and elec- 

 tricity, and capable of combination 

 with oxygen to form bases. 



Products of the chemical union of metals 

 with oxygen. 



Compounds in Avhich one or more of the 

 equivalents of hydrogen in an acid are 

 replaced by a metal. 



Acids of inorganic origin. 



Substances derived by chemical processes 

 from vegetable products, capable of 

 union with acids to form salts. 



Acids of vegetable origin. 



Products of the combination of vegetable 

 acids with bases, either organic or inor- 

 ganic. 



Products of the combination of vegetable 

 bases with acids, either mineral or vege- 

 table. 



Substances obtained by chemical pro- 

 cesses from vegetable or animal pro- 

 ducts, not forming salts with acids or 

 bases. 



Iron Filings. 



Red Oxide of Mer- 

 cury. 



Sulphate of Copper. 



Sulphuric Acid. 

 Cinchonia. 



Tartaric Acid. 



Citrate of Iron and 

 Quinine. 



Sulphate of Strych- 

 nia. 



Digitalin. 



