6183. 
6184. 
6185. 
6186. 
6187. 
6188. 
6189. 
6190. 
6191. 
6192. 
6193. 
6194. 
6195. 
6196. 
6197. 
6198. 
6199. 
6200. 
6201. 
6202. 
6203. 
6204. 
(282) 
Black-boy gum. Xanthorrhoea resin.—The resinous exudation of Xanthor- 
thoea arborea R. Br. (Liliaceae—Lily Family). Native of Australasia. 
Presented by the New York College of Pharmacy. 
Another sample of the preceding. Presented by Lehn & Fink. 
Locust resin. False Animii—The resin from a species of Hymenaea. 
Presented by H. H. Rusby. 
Guaiac. Resina guaiaci.—The resin extracted from the wood of Guaiacum 
officinale L. (Zygophyllaceae—Caltrop Family). Native of tropical America. 
Presented by Parke, Davis & Company. 
Another sample of the preceding. Presented by J. L. Hopkins & Company. 
Euphorbium.—The resinous exudation of Euphorbia resinifera Berg. 
(Euphorbiaceae—Spurge Family). Native of Morocco. Presented by the 
New York College of Pharmacy. 
Another sample of the same. Presented by H. H. Rusby. 
Powdered euphorbium.—The preceding, in the powdered state. Same 
donor. 
WAXES 
Carnauba (See No. 1608). 
Another sample of the same. Acquired by J. N. Rose in southern Brazil. 
Myrica wax. Bayberry wax. Presented by the New York College of 
Pharmacy. 
Japan wax.—The waxy exudate of Rhus succedanea L. and other species of 
Rhus native to China and Japan (Anacardiaceae—Sumac Family). 
Presented by Merck & Company. 
Juro wax.—The waxy exudate of a Japanese tree. 
An undetermined wax.—Perhaps a form of the preceding. 
BALSAMS 
Resina Draconis. Dragon’s-blood resin.—A solid balsam from the surface 
of the fruits of various species of Calamus (Palmae—Palm Family). 
Native of the East Indies. Presented by Lehn & Fink. 
Another sample of the preceding, from the Malay Peninsula. Presented by 
J. A. Shafer. 
The lump-form of the same. Presented by H. H. Rusby. 
Balsam-of-Tolu.—A balsam obtained by incising the bark of Tolutfera 
Balsamum L. (Fabaceae—Pea Family). Native of northern South America. 
Presented by Parke, Davis & Company. 
Balsam-of-Peru.—A balsam obtained from wounds in the bark of T. Pereirae 
(Royle) Baill. Native of Central America. Presented by J. L. Hopkins & 
Company. 
Styrax. Liquid storax.—The balsamic exudate from the bark of Liquidam- 
bar orientalis Mill. (Hamamelidaceae—Witch-hazel Family). Native of 
Syria. Presented by Parke, Davis & Company. 
Another sample of the preceding. Presented by J. L. Hopkins & Company. 
Sumatra benzoin. Benzoinum. Gum Benjamin.—The balsamic exudate 
of Styrax Benzoin Dryand (Styraceae—Storax Family). Native of south- 
eastern Asia and cultivated. Presented by Parke, Davis & Company. 
