II.—“Carton Pierre” is the name of a mass which is used as a substitute for carved wood. It is prepared in the following manner: Glue is dissolved and boiled; to this, tissue paper in suitable quantity is added, which will readily go to pieces. Then linseed oil is added, and finally chalk is stirred in. The hot mass forms a thick dough which crumbles in the cold, but softens between the fingers and becomes kneadable, so that it can be pressed into molds (of glue, gypsum, and sulphur). After a few days the mass will become dry and almost as hard as stone. The paper imparts to it a high degree of firmness, and it is less apt to be injured than wood. It binds well and readily adheres to wood.

III.—Wood Pulp.—The boards for painters’ utensils are manufactured in the following manner: The ordinary wood fiber (not the chemical wood cellulose) is well mixed with soluble glass of 33° Bé., then spread like cake upon an even surface, and beaten or rolled until smooth. Before completely dry, the cake is removed, faintly satined (for various other purposes it is embossed) and finally dried thoroughly at a temperature of about 133° F., whereupon the mass may be sawed, carved, polished, etc., like wood.

Any desired wood color can be obtained by the admixture of the corresponding pulverized pigment to the mass. The wood veining is produced by placing a board of the species of timber to be imitated, in vinegar, which causes the soft parts of the wood to deepen, and making an impression with the original board thus treated upon the wood pulp when the latter is not quite hard. By means of one of these original boards (with the veins embossed), impressions can be made upon a large number of artificial wood plates. The veins will show to a greater advantage if the artificial wood is subsequently saturated and treated with colored oil, colored stain and colored polish, as is done with palettes.

WOOD, ACID-PROOF: See Acid-Proofing.

WOOD CEMENTS: See Adhesives. {786}

WOOD, CHLORINE-PROOFING: See Acid-Proofing.

WOOD, FIREPROOFING: See Fireproofing.

WOOD GILDING: See Plating.

WOOD, IMITATION: See Plaster.

WOOD POLISHES: See Polishes.