(121)) 
2719. Wahoo. Euonymus. The bark of Euonymus atropurpureus Jacq. (Celas- 
traceae—Staff-tree Family). Native of the eastern and central United 
States. 
2720. Euonymin.—A resinous glucosidal substance of indefinite chemical composi- 
tion extracted from the preceding and representing its medicinal activity. 
2721. Guarana. (See No. 2210.) 
2722. Guaranine.—Caffeine extracted from Guarana. 
2723. Horsechestnut bark.—The bark of Aesculus Hippocastanum L. (Sapin- 
daceae—Soapberry Family). Native of Asia and cultivated for ornament. 
2724. Aesculin CjsHigO. + 13H20).—A glucoside extracted from the preceding. 
2725. Grapes.—The fruits of various species and varieties of Vitis. 
2726. Lees. The sediment deposited by wine of grapes. 
2727-2730. Crude tartar or Argols.—Partially purified lees, the samples containing 
different percentages of tartaric acid. 
2731. Tartaric acid (CsxH¢Os).—The purified form of the preceding. 
2732. Bitartrate of potash. Potassium bitartrate-——A compound of tartaric acid 
with potassium. 
2733. Cocoa shells. (See No. 2296.) 
2734. Theobromine (C;HsN,O2).—An alkaloid extracted from the preceding and 
related to caffeine. 
2735. Tea leaves. (See No. 2182.) 
2736. Theophylline (C;HsN4O2.H2O).—An alkaloid existing in tea. 
2737. Camellin.—A glucoside existing in the seeds of Camellia japonica L. (Same 
family). Native of Japan and cultivated for ornament. 
2738. Annatto. Bixa seeds. (See No. 1303.) 
2739. Bixin (CosHs05).—The coloring matter of the preceding. 
2740. Chaulmoogra seeds.—The seeds of Taraktogenos Kurzit King. (Flacourtia- 
ceae—Flacourtia Family). Native of eastern Asia. 
2741. Gynocardic acid (Cj4H24O2).—An acid extracted from the oil of the preceding. 
2742. Papaya leaves. Carica leaves.—The leaves of Carica Papaya L. (Carica- 
ceae—Papaw Family). Native of tropical America and cultivated for its 
edible fruit. 
2743. Carpaine (CysH2;NO2).—An alkaloid extracted from the leaves of the pre- 
ceding. 
2744. Papaya fruit. Papaw.—The fruit of the same plant. 
2745. Papaw juice.—The inspissated milky juice obtained by incising the preceding 
in an unripe state. 
2746. Papayotin.—A purified form of the preceding. 
2746.1. Papoid.—A purified extract of papaw juice. Presented by H. H. Rusby. 
2747. Mezcal, Mezcal, or Muscale buttons.—The dried tops of the stems of a 
cactus, Lophophorus Williamsit (Lem.) Rusby. (Cactaceae—Cactus 
Family). Native of northern Mexico. 
2748. Anhalonine (CjgHi;NO;).—An alkaloid extracted from the preceding. 
2749. Mezereum.—The bark of several species of Daphne (Thymeltaceae—Mezereon 
Family). Native of Europe and cultivated for ornament. 
2750. Daphnetin (CsH,O,).—A bitter principle extracted from the preceding. 
2751. Pomegranate bark. Granatum.—The bark of Punica Granatum L. (Puni- 
caceae—Pomegranate Family). Native of Persia and cultivated for its 
edible fruit. 
