by the atmosphere ; scarcely soluble in water, but readily 
ether and alcohol. Taste, slightly bitter; restores the | 
- blue of turnsole, which has been rubified by acids; is dis- 
solved by all the acids, the acidity of which it lessens; 
resembles Veratria, in forming crystallizable saline com- 
binations with acids; may be precipitated from these, by _ 
galls, like the alkalies of the different species of cinchonay: 
- action similar to coloured emeta, but more energetic. — 
PO TOXICANA, - 
ilky juice of the Antiaris toxicana. Upas antiar—used 
poison arrows, an@ybarbs. - 
0, 332.—Ir1s. Iris or flag—Fleur de luce. 
— €l.3. Ord, 1. Triandria Monogynia. Nat. ord. Ensale, 
2, Radix—of the Colleges—Orris root. . 
a » Jeff. Coll. No, 384—figure of the plant, 
: 0. Par aes eae se rs, Seamer 
4n errhine—a masticatory for dentition, and a fragrant aro” 
- Matic, used in dentifrices. : 
_ 2. Tris pseudacorus. Yellow water-flag. 
Cabinet specimen, Jeff. Coll. No, 386—figure of the plant,. 
a Te ee Mi Soe Si | 
~ Roota drastic purgative—the seeds, roasted, are a succedane> 
-_um for coffee. Soe ecaoens en ee p 
__ 3. dris Germanica. Common fleur de luce. 
_ Fresh root, hydragogue. 8 
"4, Tris versicolor. Phar. U. 8, Radix. Root, hydragogue. 
5. Iris tuberosa. Root purgative—tias been considered the: 
hermadactyis. ® 
6. Tris Virginica—~and several other indigenous species de 
serve an inaugutal dissertation. oe 
3.—JUGLANS CINEREA. Butternut. 
nat. Liber Radicis, The inner bark of the root. 
Coll.. Nos. 388 and 389—figure, 
indigenous tree, well known. The bark abox ees 
gathered in May orJune. wr SDOYe Sho 
ries. Boiling water extracts its virtues~and by evap 
“yields the extract designated im the phen, U8. 
