Flong may be made with two sheets of soft but tough matrix paper and four sheets of strong tissue, put together with stereotyper's paste. The paste recommended by an American authority upon stereotyping consists of 6.! lb. of Oswego starch, 2 1/2 lb. of wheat flour, mixed in 6 gal. of water until all lumps are dissolved. Add 12 oz. of common glue dissolved in 2 qt. of water, and 2 oz. of powdered alum. Boil, stirring constantly, until the mixture becomes sufficiently thick. Let it get cold; then take what is required for a day's use, and add one-half the bulk of powdered whiting. Incorporate thoroughly, and pass the mixture through a sieve having about twenty meshes to the inch. Lay one sheet of the matrix paper (previously soaked in water) on a smooth flat surface; cover with a thin layer of the paste, well rubbed in. Next lay on a sheet of tissue, and smooth it down . with the utmost care, using either the hand alone or an iron roller. Then add paste and paper alternately until four sheets of tissue have been added to the two sheets of matrix paper. Backing paper may be added after the flong has been beaten into form.

If placed under a wet blanket, the flong will keep good for several days.