A very useful preparation is sold by many of the law stationers under this title; it is nerely a thin cake of soluble glue (four inches by one and a half), which, when moistened with the tongue, furnishes a ready means of fastening papers, etc , together. It is made by dissolving one pound of fine glue, or gelatine, in water, and adding half a pound of brown sugar, boiling the whole until it is sufficiently thick to become solid on cooling; it is then poured into moulds, or on a slab slightly greased, and cut into the required shape when cool. (See 66.)