552 LEGUMINOSS,. 
thick, pale-coloured mucilage. The solution is gelatinized by 
borax, but is unaffected by either neutral or basic acetate of lead 
or perchloride of iron. 
Acacia Catechu.—The gum occurs mostly in spheroi- 
dal tears of a yellow or brown colour, freely soluble in water, 
forming a thick pale-coloured mucilage not precipitated by 
neutral acetate of lead, but gelatinized by basic acetate of ~ 
_ lead, ferric chloride, and borax. It freely reduces Fehling’s 
solution. 
Acacia modesta.—The gum occurs mostly in very 
small tears or angular fragments with some vermiform pieces . 
marked with waved transverse lines. It is translucent and of 
a yellowish colour ; very soluble in water, forming a good pale- 
coloured mucilage. With basic acetate of lead and ferric ~ 
chloride it forms a jelly, but not with borax; with neutral 3 
acetate of lead a faint precipitate or cloudiness, and a slight © 
reduction with Fehling’s solution. The gum is sent to Bombay 
_ from Northern India, and is classed by the gum merchants as 
Amritsar gum. a 
Albizzia procera.—The trunks of trees growing in 
_ the neighbourhood of Bombay are often covered with numer- 
ous granular or warty masses of gum about half an inch 
in diameter; occasionally the gum exudes in small tears 
and vermiform pieces. It is of a reddish brown colour, 
transparent and polished in appearance when fresh, but 
becomes dark and opaque on keeping. The freshly exuded 
_ gum completely dissolves, yielding a thick, slightly gelatinous 
mucilage, but the dark, opaque gum is imperfectly soluble. 
The mucilage is. gelatinized by both neutral and basic acetate 
of lead and by ferric-chloride, but not by borax. It rather 
freely reduces Fehling’s solution. The gum is permeated with _ 
the hyphz of a fungus, and often contains debris of cells : 
interwoven with hypha, — Sphero-crystals of calcium oxalate — : 
- are frequently met with. : 5 
__Albizzia stipulata yields tough, dark-coloured gum, 
o which swells up in water into cartilage-like masses, very little 
| am 
? 
Tie, Gabe 
