GEN—GEN _ 161 
species would form excellent subjects for an inaugural 
dissertation. They doubtless will be found to contain the 
active principle discovered in Gentiana Lutea—viz. Gentia. 
No. 283.—GeEnTIANA LUTEA. Yellow Gentian. 
Orrictnat. Gentiane, radix. Lond. Gentiane Lutex, radix. 
- Edin. Gentiana, radiz. Dub. Gentian root. 
Cabinet specimen, Jeff. Coll. No. 317—figure of the plant, 
No. 318. 
This genus takes its name from Gentius, king of Myria, its 
discoverer, who was vanquished by Anichus, the Roman 
pretor, A. U. 585, i. e. A, C. 167, 
Native of Switzerland and Austria, the ppenines, the . 
renees, but of no part of the United —I doubt if for Ss 
any part of North America, as stated by Mr. A. T. Thomp- 
son. : 
Qvauities. Wrinkled pieces, 0 of various lengths and thick- 
ness ; taste intensely bitter, without being nauseous; cut 
transversely, the roots are yellowish and maculated, with 
a thick brown bark. The sensible qualities are extracted 
by alcohol, ether, and water—the two first extract a resin 
and bitter extractive matter—the water, some part of these, 
orm a good deal of dleshot which causes the infusion to 
be ropy._Diluted_ is the proper mensivuuti, im 
the bitter extractive, the virtues reside. Yields Gentia. 
Mepicat Prorertizs anp Uszs. Tonic and stomachic—its 
use of very ancient date. Used in dyspepsia, hysteria, and 
in all cases where a vegetable tonic bitter may be indicat- 
ed. Dose, in substance, grs. x to 3}. 
Orric. Pree. Extractum Gentianz. L. E.D. & U.S. Infu- 
sum Gentianz comp. L. E. D. & U.S. Tinel. Gentiane 
comp. L. E. D. inum Gentianze comp. E. ee 
Brodum’s Nervous Cordial consists of the tine 
tian, Calumba, Cardamom, and — : 
lavender, and wine of iron. Sz i : 
ture of Gentian, with the addition of setpeRalag, Grange. 
p¢el, Cardamom, and some other aromatics. 
No. 284.—Gentra. (Has been called Gentianina.) 
_ Cabinet specimen, Jeff. Coll. No. 519. 
A sub-alkaline proximate principle of the preceding—disco- 
vered in it simultaneously, though ° previous con- 
cert, by M. Henry and M. Cavent analysis of 
the root shows it to contain— — 
1. A very fugacious odorous: asl 
2. A yellow crystalline bitter f 
3. A matter identical with bi 
