2806. 
2807 
2807 
2808. 
2809. 
2810. 
2811. 
2812. 
2813. 
2814. 
2815. 
2816. 
2817. 
2818. 
2819. 
2820. 
2821. 
2822. 
2823. 
2824. 
2825. 
2826. 
2827. 
2828. 
2829. 
2830. 
(124) 
Geissospermine (Cis3H2sN302 + H2O0).—The poisonous alklaoid of the pre- 
ceding. 
Vellosine. Pereirine. (CigH2N2O). Another alkaloid from the same. 
-I. Quebracho, or white quebracho bark. Aspidosperma.—The bark of 
Aspidosperma quebracho-blanco Schlecht. Native of Argentine and 
adjacent regions. 
Aspidospermine (C22H30N202).—The principal alkaloid of the preceding. 
Aspidosamine (C22H2gN2O2).—Another alkaloid from the same. 
Quebrachine (C2;H2sN203;).—Another alkaloid from the same. 
Quebrachamine.—Another alkaloid from the same. 
Oleander leaves.—The leaves of Nerium Oleander L. Native of the Mediter- 
ranean region and cultivated for ornament. 
Conessine (CaH4oN2).—An alkaloid extracted from the preceding and occur- 
ring in related plants. 
Neriantin.—A glucoside extracted from the same leaves. 
Oleandrin.—Another glucoside from the same. 
Canadian hemp. Apocynum.—The rootstock and roots of Apocynum 
cannabinum L. Native of North America. 
Apocynin.—An active constituent extracted from the preceding. 
Cynotoxin (29H2s0¢).—The poisonous and medicinal glucoside of Apocynum. 
Alstonia. Dita bark. Australian quinine bark or fever bark— The 
bark of Alstonia constricta F. Muller. Native of Australia. 
Chlorogenine. Alstonine (Co:H2oN204.3$H2O).—The principal alkaloid of the 
preceding. 
Echitamine. Ditaine. (C22H2sN204.4H2O).—Another alkaloid from the 
same. 
Porphyrine (C2:H2;N;02).—Another alkaloid from the same. 
Green Strophanthus.—The seeds of Strophanthus Kombe Oliver. Native of 
tropical Africa. 
The same in their pod. 
Strophanthin (CsoH¢eO19).—A poisonous and medicinal glucoside of the 
preceding and other species of Strophanthus. 
Thevetia seeds. Yellow oleander. Exile tree—The seeds of Cerbera 
Thevetia L. Native of tropical America and cultivated. An ingredient 
of arrow-poisons. 
Cerberin. Cerberid. (C2sH3s0;2).—A glucoside extracted from the preced- 
ing. 
Curaré. Woorara.—A mixture of extracts of the preceding and other 
poisonous plants of South America. The principal arrow-poison of the 
South American Indians, and differing in composition among the various 
tribes. 
THE MILKWEED FAMILY (Asclepiadaceae) 
Gymnema leaves.—The leaves of Gymnema sylvestre R. Br. Native of British 
India. 
Gymnemic acid (C32:H;:Oj2).—An acid extracted from the preceding and 
possessing the power to destroy temporarily the power of tasting bitter or 
sweet. 
