LEGUMINOS 2. a. 
a sometimes microscopical characters. ~The reagents employed 
_ are those which have been found most useful for comparative 
3 purposes, All the gums, with the exception of the paler 
_ samples of Acacia arabica, anda gum said to be yielded by 
a Acacia leucophlea, are gelatinized by basic acetate of lead. 
Gums or so-called gums from the following plants have 
been examined:— 
_ Feronia Elephantum.—tThe gum occurs in small, 
_ irregular or rounded tears, varying in colour from reddish brown 
to pale yellow or, colourless. The paler samples dissolved in 
‘water form a thick, tasteless and colourless mucilage. The 
Solution is precipitated by both neutral and basic acetate of 
lead and by ferric chloride, but not by borax. This is one of 
the most valuable of the Indian gums, and is a good substitute 
‘for gum arabic. 3 
_ gle Marmelos.—A small sample of this gum received . 
from Saharanpur was in reddish brown, transparent angular 
fragments. It is quite insoluble in water, but dissolves in 
fluorescence. 
Melia Azadirachta.—The gum occurs in large tears, 
cracked and fissured on the surface, or in vermiform or stalacti- 
form pieces of a pale yellow or amber colour, readily dissolving 
in water, forming a good, pale-coloured mucilage. The solution 
is gelatinized by ferric chloride and basic acetate of lead, but 
‘not by borax or neutral acetate of lead. 
Cedrela Toona.—-Some gum gathered from a tree on 
the Nilgiris was in transparent stalactiform masses a a 
yellowish brown colour, and smooth and polished.on the s wt 
It forms a thick mucilage with a large volume of water. Se 
maucilage is gelatinized by basic acetate of lead, but 1s gee es : 
by the neutral acetate, ferric chloride or a a 
eeping the gum about a year and again treating with wa 
