ruling. The larger squares are ruled, the smaller are printed from engraved rolls or from electrotypes of engraved plates. Printed on drawing paper, also on thin paper for subsequent reproduction by contact with sensitized papers.
Sensitized Paper.—Various papers for photographic printing, the paper receiving treatment after making. The emulsions are made and applied to the surface of the papers, or the paper is passed through a solution of sensitive salts. The developing after printing is done in another solution or in water, according to the preparation of the paper.
Shops.—White papers for packing, either glazed or unglazed; white grocery papers are shops. Substances equivalent to demy, 40 to 48 Ib.; sizes: demy, royal, 28 by 20 inches and in rolls.
Silurian.—Grey paper mottled with blue fibres. The pulps are coloured separately with fast dyes, and a small proportion of the darker fibres added to the grey pulp.
Skips.—Thin packing papers for lining skips or crates in which various goods afe packed.
Small Hands.—Thin M.G. wrapping papers, made of the commonest pulps.
Squared Papers.—Ruled or printed squares of various sizes on drawing, cartridge, and tracing papers. See Sectional Paper.
Stencil Paper (Oiled).—Thick strong paper used for cutting stencils for decorators. Manilla or other papers of good strength and substance are soaked in linseed oil, and sometimes varnished on one side.
Stencil Papers (Waxed) are used in connection with cyclostyle, mimeograph and similar machines. Thin, strong, unsized papers are coated with wax, and a stencil is actually made by removing the wax in various ways. For stencils made by handwriting the wax is removed by writing with a stylus on a file plate or a metal plate covered with bolting silk, or a cyclostyle pen, having a wheel at its tip, is used, making a series of perforations through the waxed paper. With the typewriter the wax is removed by a blow of the letter upon a tissue which is placed in front of the stencil paper. Wherever wax
