OIL BEANS, SEEDS AND NUTS 461 
ample light for its development. According to the investigations of 
the Imperial Institute, the nuts were found to yield 55:2 per cent. 
of fat, which was solid and cream-coloured. Owing to the fact that 
’ this is a larger yield than that obtained from the nuts of L. alata, the 
decorticated kernels were valued at £12 per ton c.if. Liverpool. 
This tree is one of the most prevalent in the evergreen forests 
of Nigeria, the Gold Coast, and Sierra Leone, so that very considerable 
amounts of the seeds could be obtained, provided a remunerative 
price is paid to cover the cost of production. According to the analysis 
made at the Imperial Institute! the kernels contain : 
Specific gravity at 100/15:5° C. .. 0-859 
Acid value . : 6 -- 11-6 
Saponification wales ae .. 190 
Iodine value és ar .- 60 
Unsaponifiable value... ie 0°8 
Guttifere, Pentadesma Butyracea.—The Tallow Tree. From this 
a large number of fat-yielding kernels are obtained from each fruit. 
The nuts are irregular tetrahedral shape. The shell is not very thick 
and easily broken when the nuts are dry. When fresh the kernel is 
lightish-yellow in colour, and the nut is brown. According to the 
investigations of the Imperial Institute the fat obtained is of a 
pale-yellow colour, and has a pleasant smell and taste. In smell, 
in fact, it is very much like Shea butter. 
On analysis it showed : 
Specific gravity at oe 15°5° C 0-859 
Acid value . : 3°6 
Supanification value st2 -- 190°1 
Todine value a os -- 41°8 
Titer test .. 4 ag -- 60°7°C. 
Hehner value a ‘a -. 95°0 
Unsaponifiable matter .. ae 1-7 
Reichert-Meiss] value .. .. Nil 
The samples from the Southern Provinces of Nigeria showed rather 
a lower saponification and iodine value. 
From its appearance and chemical constants it seems possible that 
this fat: might be used in the manufacture of edible fats. The kernels 
were valued, when in good and dry condition, at from £8 to £10 per 
ton in the United Kingdom. 
Allanblackia floribunda.—The numerous nuts or kernels from the 
large fruits of this tree have not yet been used for any commercial 
purpose. They appear to contain an oil. In this family, too, there 
1 Official Report, Oil Seeds, Fats and Waxes, Imperial Institute, 1914. 
