Enterprises: (1) Foreign missions in Labrador, Alaska, Canada, California, West Indies, Nicaragua, Demerara, Surinam, Cape Colony, Kaffraria, German East Africa, North Queensland, West Himalaya.
In Australia, Demerara, Cuba, Java and Peru double crushing and maceration (first used on a commercial scale in Demerara by the late Hon.
The best results from extraction by diffusion have been obtained in Java, where there is an abundance of clear, good water; but in the Hawaiian Islands, and in Cuba and Demerara, diffusion has been abandoned on several well mounted estates and replaced by double and triple crushing; and it is not likely to be resorted to again, as the extra cost of working is not compensated by the slight increase of sugar produced.
In Demerara and other places the juice is then heated under pressure up to 220° F.
In the best days of the so-called Jamaica Trains in Demerara, three-quarters of a ton of coal in addition to the megass was burned per ton of sugar made, and with this for many years planters were content, because they pointed to the fact that in the central factories, then working in Martinique and Guadeloupe, with charcoal filters and triple-effect evaporation, 750 kilos of coal in addition to the megass were consumed to make woo kilos of sugar.
On the first night of the debate Lord Howick, afterwards Lord Grey, who had been undersecretary for the Colonies, and who opposed the resolutions as proceeding too gradually towards abolition, cited certain occurrences on Sir John Gladstone's plantation in Demerara to illustrate his contention that the system of slave-labour in the West Indies was attended by great mortality among the slaves.
The substance was discovered about the year 1835 by Hugh Rodie, a surgeon in Demerara, who used it as a febrifuge in.