The process, so far, is that employed for all kinds of cocoa and chocolate, the nuts, as before stated, being the basis of all: the variety depends on subsequent admixture, the best kinds being, of course, the purest and most delicately flavoured. Up to this point, we have the cocoa in its native condition, merely altered in form; but now it has come to the stage of sophistication. A given portion of the cocoa liquid is poured into a pan, and weighed with other ingredients, which consist, in the main, of arrow-root, sago, and refined sugar--the latter reduced to an impalpable powder--besides the flavouring substances. The quality depends entirely on the proportions of these ingredients, and on their unexceptionable character. The unpractised eye may not detect any difference between a cake of genuine chocolate, and another two-thirds composed of red earth and roasted beans. We have seen documentary evidence laid before the Board of Excise, shewing that a certain manufacturer of cocoa used every week a ton of a species of umber for purposes of adulteration; and recent investigations have shewn, that such practices are only too frequent. No wonder that muddy and insoluble grounds are found at the bottom of breakfast-cups! No one pretends that manufactured chocolate or cocoa is unmixed; but it is a satisfaction to know, that the admixture is not only of good quality, but nutritious. The necessary quantities having been weighed and duly stirred together with a large wooden spoon, are poured into a mould nearly three feet in length, about nine inches wide, and from three to four inches deep; and in from four to five hours the mass is sufficiently solid to bear removal, when it is turned out as a large cake or block, which might very well pass for a huge sun-baked brick from Nineveh. In this way any number of cakes may be produced, those made on one day being finally worked up on the next, by which time they have become somewhat more hardened. In this final process, the cakes are laid one at a time in what resembles a chaff-cutting machine, except, instead of the ordinary broad knife wielded by grooms, that a wheel, armed with four sharp blades, whirls round at the open end. The block of cocoa, held by machinery, advances with a slow continuous motion, until it touches the blades on the wheel, when immediately a cloud of most delicate slices or shavings is thrown off, as rapidly as sparks from a knife-grinder's wheel. Cake after cake is thus comminuted, at the rate of a ton per day from a single machine. The shavings are collected as fast as they fall, and passed through a sieve, which reduces them to that coarse powdery form so well known to all consumers of soluble chocolate. It is then put into barrels, and despatched without delay to the packing-room by means of a railway.