Part III.] Gopal Eau and Simonsen : Oils and Fats from seeds. 5 
The ethereal extract containing the soluble bromo acids was evapo- 
rated in vacuo and the residual viscid oil ground up with ice-cold 
light petroleum when no solid separated even on keeping for some 
time in a freezing mixture. It would therefore appear that linolic 
acid was absent from the mixture of liquid acids. 
In order to identify the other acids present a further quantity of the 
crude mixture of acids was converted into the barium salt which was 
purified by crystallisation from moist benzene from which solvent a 
considerable quantity was ultimately obtained in thin fine needles 
which gave on analysis the following figures : — 
0-2489 gave 0-0845 BaS 04 Ba=20 0. 
C36Hi5604Ba requires Ba-=19-6 per cent. 
The acid recovered from the pure barium salt was found to boil at 
280-282°-100mm. (uncorr.) and to possess the following constants : — 
D 0-8895, 1-458, iodine value 89 9, M=28]. 
dU j) 
It evidently consisted of pure oleic acid. 
Summary. 
The seeds of Chloroxylon Swietenia yield 16 per cent, of a non- 
drying oil. 
2. The acids present in the oil as glycerides were found to be 
stearic, palmitic, myristic, oleic and linolenic acids. 
4. The oil would not appear to be of any economic value. 
