14 



was subsequently obtained by submitting the oil-cake or residuum, to 

 further pressure, and by boiling. 



I forwarded a keg of the seeds, in the husk, to London, in Septem- 

 ber last, and another keg to New York, and I subsequently sent three 

 ounces of the oil to each of those cities with directions to ascertain and 

 report to me the marketable value in those places, and the machinery 

 best adapted to its manufacture. I have had a partial notice of my 

 shipment, from London. That notice, however, although only appli- 

 cable to the seeds, is of some value (No 4.) 



I have directed the oil, since forwarded to London, to be subm'tted 

 to Professor Johnston, for analysis. 



Independly of its not turning rancid, this oil is said to be free from 

 salt, and therefore, as well as from its limpid character, to be valuable 

 to watch-makers, gun- smiths, and for all kinds of machinery. I have 

 had it tested on brass, at two of the watcb-making establishments in 

 Kingston, and it has been reported to me as equal to the " watch oil" 

 which they import at a cost of 2s. 6d, for a bottle the size of a man's 

 little finger. Some of the oil expressed from the refuse of my experi- 

 ments at the Railway has since been used with advantage for the oil- 

 ing of the Railway clock, and has been found superior to the oil pre- 

 viously used, all of which had a tendency to coagulate and clog the 

 machinery, unknown to the limpid character of this oil. 



For the purposes of the watch-maker, and machinery, the demand 

 for this oil might not be sufficiently great to be remunerative, but a 

 reference to the following Table will show that it might be cultivated 

 and sold at a price which would enable it to compete with any of the 

 oils now used for domestic purposes, and as its culture appears to be 

 attended with so little difficulty and expense, while it is affected by 

 none of the casualities arising from drought and otherwise, to which 

 other species of cultivation is liable, it is to be hoped that it will, ere 

 long, take its stand among the staples of the 



Number of Trees in nne acre 



Giving 31bs. seed a Tree 



Ozs. of Oil at 2 ozs. to each lib. seed .. 



Gallons Oil at 160 ozs to gallon 



Value at 8s. per gallon 



Or say lOO acres ... £1,980 



I have said but little as to the cost of culture or manufacture, because 

 the cultivation would be very similar to that of Coffee, and the above 

 calculation leavt s a very large margin for expenses. I have allowed 

 but 31bs. of seed per tree, whereas it is said to give ten lbs per tree — 

 and but 8s. per gallon for the oil, whereas it would seem to be worth 

 two or three times that amount. The cost of a hydraulic press would 

 be about £150, and a machine for taking off the winged husk, and win- 

 nowing the chaff, could not be expensive. 



/^I'have tried this oil as a burning oil, on a small scale, and nothing 

 could surpass the clearness and brightness of the flame, and total ab- 

 sence of all disagreable odour even when blown out. 



sland 



1,320 



3,960 



7,920 

 49 gals. 80 ozs. 

 £19 16 



