Paste. Good and durable paste may be made with flour in the usual way, but rather thick, with a proportion of brown sugar and a small quantity of corrosive sublimate. The sugar keeps it flexible, and prevents it scaling off from smooth surfaces, and the corrosive sublimate, independently from preserving it from insects, is an effectual check against its fermentation. This salt, however, does not prevent the formation of mouldiness; but a drop or two of the essential oil of lavender, peppermint, anise, or bergamot, is a complete security against it. Paste made in this manner and exposed to the air, dries without change to a state resembling horn, so that it may at any time be wetted again, and applied to use; and if kept in a close covered pot may be preserved in a state fit for use at all times.