2831. 
2832. 
2833. 
2834. 
2835. 
2836. 
2837. 
2838. 
2839. 
2840. 
2841. 
2842. 
2843. 
2844. 
2845. 
2846. 
2847. 
2848. 
2849. 
2850. 
2851. 
2852. 
2853. 
2854. 
2855. 
2856. 
2857. 
2858. 
(125) 
Condurango.—The bark of Marsdenia Condurango Nichols. Native of 
Ecuador. 
Condurangin.—A mixture of glucosides of the preceding. 
THE MORNING-GLORY FAMILY (Convolvulaceae) 
Scammony root.—The root of Convolvulus Scammonia L. Native of western 
Asia. 
Mexican, or false, scammony.—The rootstock or tuber of ]pomoea orizabensis 
(Pel.) Ledan. Native of Mexico. 
Resin of scammony.—The resin extracted from No. 2833. 
The same in the powdered state. 
Convolvulin (Cs:Hs0Ois).—A glucoside extracted from the preceding and 
related plants. 
The same in the powdered state. 
Jalap. Jalapa.—The tuberous root of Exogonium purga (Wend.) Lindley. 
Native of Mexico and cultivated as a drug. 
Resin of jalap.—The resin extracted from the preceding. 
Alkanet. Alkanna.—The root of Anchusa officinalis L. (See No. 1311.) 
Alkannin. Alkanet extract.—A coloring extract of indefinite composition 
extracted from the preceding. 
THE MINT FAMILY (Labdiatae) 
Thyme. Thymus. Garden thyme. (See No. 1585.) 
Thymol (CioH1O).—A phenol, the active constituent of thyme. 
Thymene (CjoHie).—A hydrocarbon from the same. 
Japanese peppermint.—The herbage of Mentha arvensis piperascens. Native 
of eastern Asia. 
Japanese menthol or peppermint camphor (CjcH200).—The camphor ob- 
tained from the preceding and other species of Mentha. 
Peppermint. Common peppermint. Mentha piperita L. (See No. 1583). 
American menthol.—Menthol derived chiefly from the preceding. 
THE POTATO FAMILY (Solanaceae) 
Belladonna leaves.—The leaves of Atropa Belladonna L. Native of Europe 
and cultivated as a drug. 
Belladonna root.—The root of the same plant. 
Atropic acid (CsHsO2).—An acid existing in the two preceding. 
Atropine. Atropia (Ci7H23NOs3).—The principal alkaloid of the same plant 
and also existing in related plants. 
Tropic acid. Isotropic acid (CsHi9O3).—Another acid derived from the 
same plants. 
Belladonnine (Cj7H2:NO:2).—Another alkaloid existing in the same plants. 
Tobacco. (See No. 2066.) 
Nicotine hydrochloride (CioHiusN2.2HCl).—The compound of hydrochloric 
acid with nicotine, the principal alkaloid of tobacco. 
Potato sprouts and tops.—The young stems and foliage of Solanum tuberosum 
L. Native of America and everywhere cultivated as a food, except in hot 
countries. 
