- 
~ 
548 LEGUMINOS. 
was found to be much less soluble, the gum swelling into a 
‘gelatinous mass. 
Swietenia Mahagoni yields a gum that often runs 
down the side of the tree, drying up into brittle, white, shining 
fragments, which however become yellow on keeping. It 
dissolves readily in water, forming a weak dark-coloured 
mucilage, which freely reduces: Fehling’s solution; is precipi- 
tated by acetate of lead, gelatinized by the basic acetate and by 
ferric chloride, but not by borax. 
Chloroxylon Swietenia.—A sample of this gum 
received from Bangalore was in dark reddish-brown tears and 
stalactiform pieces. It swelled up in water, forming a gelatinous — 
mass, hardly any dissolying.* 
Anacardium occidentale yields large quantities of 
‘gum, mostly in stalactiform masses, varying in colour from 
yellow to deep reddish brown. It dissolves readily in water, 
but forms a slightly glairy, more or less turbid mucilage. 
The turbidity is due to the presence of a small quantity of a 
yellowish oily body, which may be detected under the micro- 
scope. It is probably the occurrence of this oil in the gum that 
renders it obnoxious to insects. A mucilage of the yellowish 
- gum is unaffected by neutral acetate of lead, perchloride of iron, 
bichromate of potash, molybdate of ammonia or borax, but it 
very freely reduces Fehling’s solution, and is gelatinized by 
basic acetate of lead. The mucilage of the dark reddish brown 
gum is’ blackened by bichromate of potash and by ferric 
chloride, butis not gelatinized. It is precipitated by molybdate 
of ammonia. 
Odina Wodier ‘yields an abundant supply of gum in 
large tears and stalactiform masses, of white, yellow or amber 
colour; brittle and friable from the presence of numerous 
minute cracks. With water it forms a glairy mucilage, which , 
- is turbid from the presence of a small quantity of oil recogniz- 
“oe A sample from another source Was more socie (see ms 339), but the : 
solution ee 
heal any adhesive powe 
