What the use of gutta percha is doing for the Malays, the use of palm-oil is doing for the Africans. A great commerce has sprung up on the African coasts, in which statesmen and philanthropists see the coming destruction of the slave-trade. In 1853 we imported seventy-one million lbs. of palm-oil and eighteen million lbs. of cocoa-nut oil. The greater part of this oil is for making candles. It is equal to three-fourths of all the tallow we import. What has created this enormous manufacture of one of the most improved articles of domestic utility? Knowledge. The palm-oil candles have been brought to their present perfection by chemical and mechanical appliances, working with the most complete division of labour, carried through by the nicest economy resulting from great administrative skill. 'Price's Candle Company' is a factory, or rather a number of factories, in which, in the exact proportion that the health, the comfort, and the intelligence of the workers is maintained in the highest efficiency, the profits of the capitalist are increased. The superior quality of the products of the oil-candle factories is the result of chemistry. A French chemist discovered that fats, such as oil, were composed of three inflammable acids--two of which, called stearic and margaric, are solid; and one called oleic, fluid. Another substance called glycerine is also present. The oil is now freed from the oleic acid and the glycerine, which interfere with its power of producing light, and the two solid acids are crystalized. What are called stearine and composite candles are thus produced, at a cost which is really less than that of the old tallow-candles, when we consider that they burn longer and with greater brilliancy, besides being freed from a disagreeable smell and from a tendency to gutter. Candles from animal fat have also been greatly improved by chemical appliances in the preparation of the tallow.