Note 3 — THE CLOTHING OF THE ANCIENTS.

Dyers now know how to produce a very durable red by dipping their stuffs in a solution of acetate of alum, before subjecting them to the action of the madder. It would be desirable that they should begin to derive some advantage, on a large scale, of a new substance, lately discovered by Mr. Robiquet, which possesses the property of producing a red amaranth or pansy, very agreeable. Chemists call this substance orsine.