BITTER PRINCIPLE

( Amère , Fr.; Bitters toff , Germ.) This principle has not been insulated hitherto by the chemist from the other proximate principles of plants, but its existence is sufficiently recognised by the taste. The following list contains the principal bitter substances, many of which have been used in the arts and in medicine. | Name. | Part employed. | Country. | Observations. | | Qua ia | Wood | Surinam, E. Indies | Powerfully bitter | | Wormwood | Herb | Great Britain | Ditto | | Aloe | Inspi ated juice | South Africa | Ditto | | Angustura | Bark | South America | Ditto | | Orange | Unripe fruit | South of Europe | | - | Aromatic bitter | | Ditto | Peel | Ditto | | Acorus | Root | Ditto | Ditto | | Carduus Benedictus | Herb | Greek Archipelago | | | Cascarilla | Bark | Jamaica | Ditto | | Centaury | Herb | Great Britain | | | Camomile | Flowers | | | | Colocynth | Fruit | Levant | Intolerably bitter | | Colombo | Root | East Africa | Very bitter | | Fumitory | Herb | Great Britain | | | Gentian a lutea | Root | Switzerland | Very bitter | | Ground Ivy | Herb | Great Britain | | | Walnut | Peels | | With tannin | | Island mo | | | With starch | | Hops | Scales of the female flowers | Great Britain | Aromatic bitters | | Milfoil | Herb flowers | Great Britain | | | Large-leaved Satyr i on | Herb | Great Britain | | | Rhubarb | Root | China | Disagreeable odour | | Rue | Herb | Great Britain | Bitter and sharp | | Tansy | Herb flowers | Ditto | Bitter and offensive | | Bitter trefoil | Herb | Ditto | | | Simarouba | Bark | Guyana | | | Bryony | Root | Great Britain | Sharp, bitter, nauseous | | Coffee | Seeds | Arabia | |