(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 Q5H16O9 + I3H2O). — 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 (C4H6O6). — 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 (C7H8N4O2). — An alkaloid extracted from the preceding and 



related to caffeine. 



2735. Tea leaves. (See No. 2182.) 



2736. Theophylline (C7H8N4O2.H2O). — An alkaloid existing in tea. 



2737. Camellin. — A giucoside 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 (CjsHmOs). — The coloring matter of the preceding. 



2740. Chaulmoogra seeds. — The seeds of Taraktogenos Kurzii King. (Flacourtia- 



ceae — Flacourtia Family). Native of eastern Asia. 



2741. Gynocardic acid (C14H24O2). — 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 (C14H25NO2). — 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 Williamsii (Lem.) Rusby. (Cactaceae — Cactus 

 Family). Native of northern Mexico. 



2748. Anhalonine (C12H1BNO3). — An alkaloid extracted from the preceding. 



2749. Mezereum. — The bark of several species of Daphne (Tkymeliaceae — Mczereon 



Family). Native of Europe and cultivated for ornament. 



2750. Daphnetin (C9H6O4). — A bitter principle extracted from the preceding. 



2751. Pomegranate bark. Granatum. — The bark of Punica Granatumh. (Puni- 



caceae — Pomegranate Family). Native of Persia and cultivated for its 

 edible fruit. 



