oe 
262 RUTACEZ. 
a number of large cells filled with oleo-resin. Some cells 
contain raphides. The vascular system is loaded with oleo- 
resin. 
Chemical composition.—The bark contains a resin, and an 
essential oil in flavour recalling oil of citron, also a bitter 
principle. In the aqueous infusion, tammic acid produces an 
abundant precipitate of the bitter principle, which probably is 
of an indifferent nature. Fliickiger and Hanbury were unable 
to detect berberine in the bark. On distillation the leaves 
yield a pale yellowish green limpid oil, having the odour of 
citron peel, and a bitter and aromatic taste. The specific 
gravity at 17° C. is ‘878; examined by polarized light in a tube 
of 200 m. m. it rotates 15°30’ to the left. The oil has no 
constant boiling point, but the greater part distils over between 
190° and 210°. Metallic sodium has a slight action upon it 
which causes a yellow coloir, and a white deposit in the oil. 
Sulphuric acid instantly changes it to a rich brown, and nitrie 
acid strikes a transient pink. The oil readily dissolves iodine, 
and its solution in alcohol is not affected by ferric salts. It 
absorbs dry hydrochloric acid with considerable rise of 
temperature and deepening of colour, but no crystals were 
_ observed in the mixture after reposing afew days with au 
excess of the gas. 
* 
ek 
MURRAYA KCNIGII, Sprexg. 
_ Fig.— Wight Ic., t.13; Roxb. Cor. Pl. I1., t. 112. Curry 
 Jeaf-tree (Bng.). 
Hab.—Himalaya, Bengal, Western Peninsula, Ceylon. 
Vernacular.—Karhi-nimb, Jhirang, Jiravi (Mar.), Gora 
; _nimb .(Guz.), Ganda-nim (Punj.), Katnim (Hind.), Karibeva 
Can.), Kara-veppilai (T’am.), Kari-vepachettu (Tel.), Bar- 
sunga (Beng.). : 
-ak mwintbe, or fragrant Neem, is found wild im 
? 
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» Uses, &c.—This small tree, in “Sanskrit 
