a name given by the French writers to a preparation of copper, which the Chinese use as a red colour in some of their finest china, particularly for that colour which is called oil-red or red in oil. The china ware coloured with this is very dear. The manner in which they procure the preparation is thus: they have in China no such thing as silver-coined money, but they use in commerce bars or mafics of silver; these they pay and receive in large bargains; and among a nation so full of fraud as the Chinese, it is no wonder that these are too often adulterated with too great an alloy of copper. They pass, however, in this state, in the common payments. There are some occasions, however, such as the paying the taxes and contributions, on which they must have their silver pure and fine: on this occasion they have recourse to certain people, whose sole business it is to refine the silver, and separate it from the copper and the lead it contains. This they do in furnaces made for the purpose, and with very convenient vessels. While the copper is in fusion, they take a small brush, and dip the end of it into water; then striking the handle of the brush, they sprinkle the water by degrees upon the melted copper; a sort of pellet forms itself by this means on the surface of the matter, which they take off while hot with pincers of iron, and immediately throwing it into a large vessel of cold water, it forms that red powder which is called the grenaille; they repeat the operation every time they in this manner separate the copper; and this furnishes them with as much of the grenaille as they have occasion for in their china works.