Group 1. _Containing Alcohol_.
Examples: Beers, Wines; Spirits.
Group 2. _Containing Volatile Oils_.
Examples: Spices and Condiments, as Cloves, Nutmegs, Pepper,
Horse-radish, &c.
Group 3. _Containing Acids_.
Examples: Apples, Oranges, Rhubarb Stalks, Vinegar.
Group 4. _Containing Alkaloids_, _which act upon the nervous system as
stimulants or sedatives_.
Examples: Tea, Coffee, Cocoa; Tobacco, Hemp, Opium.