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stor oil, the compound is rendered more elastic and less subject to shrinkage in drying. The substances are thoroughly incorporated by grinding, colored with any suitable pigment, it desired, and evaporated to proper consistency for molding. Pierson combines with mineral and vegetable substances; uses for moldings. He also uses it to render woven goods air and water tight. English patent 536 of 1863 makes dental plates by combining with shellac; grinding, moistening with solvent, and moor combs, billiard-balls, dominos, knife-handles, dental plates, truss-pads, coating metallic articles, and for the manufacture of imitation coral, ivory, tortoise-shell, horn, and the like. See the following United States patents:— 65,267.Pierson1867. 79,261.Seely1868. 77,304.McClelland1868. 90,765.McClelland1869. 90,766.McClelland1869. 96,132.McClelland1869. 3,777.McClelland1869. 3,778.McClelland1869. 88,228.Streeter1869. 88,229.Streeter1869. 88,260.Streeter1869. 89,253.Stree