DECOLORIZATION OF SUGAR, 
239 
with the sugar, and afterwards poured into the filtering 
vessel, and the liquor made to pass through the cotton, in 
place of the cotton being first put into the filtering vessel, 
as above explained. 
I employ the same means as those before described, for 
clarifying raw sugar, for cleansing the sugar cane juice in 
the colonies, whether the juice be cleared by means of 
caustic lime, and afterwards through the cotton as before 
described, or better following my process, having the chalk 
mixed with the juice of the cane, quickly boiled up, and 
kept at the boiling point for some time, skimming the impu- 
rities as they arise, and then filtered through my cotton 
filter ; then, for the most part, the fermentation and decom- 
position of the sugar will be prevented, as, at the boiling 
point, no fermentation can arise, (similar to the wort of 
beer) and the acids which are in the sugar are absorbed or 
neutralized by the chalk. 
An overplus or surplusage of chalk is perfectly harmless 
by the filtering through the cotton, the chalk together with 
all azotic and extraneous substances are quickly removed. 
By this process the greatest possible produce in sugar will 
be gained, and the coloring product (the result, for the most 
part, of the decomposition of the sugar) will be avoided, 
and thus its quantity and quality will be increased, and 
ameliorated — in place of cotton, or in combination with 
cotton, other vegetable fibres may be similarly employed. 
That which I claim as my invention, is the use of cotton 
or vegetable fibre, cut up or divided into small lengths, 
(preferring cotton to other vegetable materials) in the clear- 
ing, purification, and refining raw sugar as before described. 
In witness whereof, I, the said, &c. &c. &c. — Lon. Pharm. 
Jour. 
