458 R. THRELFALL. 
About three and a quarter kilos. of seeds surrounded by the 
pitchy matter were gradually collected, and an attempt was made 
to grind them in an iron mortar, but they were too hard to yield 
appreciably. Some of them therefore were pounded on an anvil 
witha heavy hammer. Finally, in the hope of softening the seeds, 
they were boiled in water for twelve hours, and afterwards a 
current of steam was passed through the still in order to remove 
any oil which might be removable by this process. The yield was 
a minute quantity of a white wax(?) with somewhat the same odour 
as that of the resin previously described. This wax was rather 
harder than tallow and is not perfectly soluble in alcohol. The 
water distilled over with the wax had a smell of the fruit, though 
this had degenerated to an unpleasant acrid odour. 
The residue in the still consisting of the seeds and a trace of 
wax together with the watery extract was filtered, and a portion 
of the filtrate extracted with ether and with shale benzine. Both 
these substances produced such a heavy precipitate that the 
process was almost unmanageable. Neither ether nor benzine 
extracted any measurable amount of anything. 
The watery extract was evaporated to dryness and yielded a 
brown mass which has not yet been further examined. 
The seeds, when collected on a filter after undergoing the distil- 
lation process, were white and slimy on the surface, as if the resin 
had been partially decomposed. After stirring for an hour with 
a considerable quantity of alcohol the slimy mass dissolved. The 
alcoholic extract gave a mass of a dark red resin or pitch which 
has not yet been further examined except by heating. At first 
it yielded a smell as of turkey rhubarb, then of benzoic acid and 
finally an odour of the resin already referred to. 
The seeds which had thus been freed from the pitch and soluble 
constituents were very hard, and an attempt was made to break 
them by compression in a mould on the testing machine. The 
press measured seven by seven inches and stood a pressure 
96,000 lbs. whenit broke. The iron was greasy where the pressure 
