9 
B.—Kernels. 
These were submitted to a process of exhaustion similar to 
that applied to the seed-coats. 
Per cent. of Per cent. of 
kernel. seed. 
1. Petroleum spirit extract ... 47-06 x53 28-90 
2. Ether extract ee TT 1:03 ae 0°65 
3. Chloroform extract... 0-17 0-11 
4, Alcohol extract “4 dil 3°44 re 2°18 
Again, it is interesting to note that no alkaloid was present in 
the residue. The residue from the petroleum spirit extract was 
a pale brown, viscous oil. On exposure to air, it rapidly filmed 
on the surface, and on continued exposure it was converted into 
a whitish solid mass, easily reducible to a powder. 
The result of these experiments led to the present examination 
of the seeds, with a view to ascertaining as to whether the oil 
would be of commercial value as a drying oil 
Since, as will be shown later, the heating of the oil to a 
temperature approaching 100° C. had the effect of altering the 
composition of the oil, a method, other than that of extraction 
: green colc 
was most probably due to traces of chlorophyll from the coating 
of the cotyledons. : 
On examination the fat gave the following constants :— 
Saponification value aS ie 1852 
Acid value ... ae a; ook 1:9 
Todine value a ere ete 23°4 
Refractive index (40° C.) ... a: 1-496 
Ester value ie we a 
Melting point ‘i ae see 
Unsaponifiable matter... ‘ws a 
After saponification of the fat the alcohols were separated, 
and were found to consist principally of glycerol, the residue 
acids, on 
and solid, The following constants were observed :— 
| Melting point... — se 46°-51" C. 
Solidifying point ... 44°-42° C. 
Acid value aes ee . 
Iodine value 
