APPENDIX I.
ANCIENT MANUFACTURE OF COCOA.
Most of the operations described are only the performance on a large scale by modern machinery of those employed by the Mexicans, and by those who learned from them, of whom we read:
"For this purpose they have a broad, smooth stone, well polished or glazed very hard, and being made fit in all respects for their use, they grind the cacaos thereon very small, and when they have so done, they have another broad stone ready, under which they keep a gentle fire.
"A more speedy way for the making up of the cacao into chocolate is this: They have a mill made in the form of some kind of malt-mills, whose stones are firm and hard, which work by turning, and upon this mill are ground the cacaos grossly, and then between other stones they work that which is
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