What I claim is, the composition composed of all the ingredients described, and in about the proportions for the purpose set forth, the same constituting an improved new and useful article of manufacture. By a judicious compound of tallow, bees-wax, resin, shellac and glue, the inventor produces a very superior water-proof composition, the leather remains soft and pliable, will take a polish, and repel water very perfectly. _One hundred and thirty-third_, to Austin G. Day, of Seymour, Conn., August 10, 1858. For treatment of caoutchouc. I do not claim in the broad, vulcanizing rubber or equivalent gums, and irrespective of the special process used and product made. Therefore— What I claim is, running the heat for vulcanizing elastic hard rubber compounds as set forth through the several grades of temperature, and the several intervals of time described and illustrated in the specification. I also claim making, as described, the elastic, hard rubber composition of two parts by weight of rubber, and one part of sulphur, when such composition is made preparatory to the running of the heat through the several grades of time and temperature as set forth in the specification. I also claim equalizing the temperature in the heating apparatus by mechanical means or by a current of steam, or its equivalent, in the manner set forth. _One hundred and thirty-fourth_, to Samuel Whitmarsh, of Northampton, Mass. For Composition for Artificial Leather. I do not claim, broadly, the saturation of cloth and other fabrics in linseed oil containing umber or other substances. But what I claim is the fabric specified, composed of cotton or other fibrous substance, in a woven or unwoven condition, saturated or coated with a compound of linseed oil and burnt umber that has been prepared as described. Samuel Whitmarsh, of Northampton, Mass., has invented a new fabric which is intended to supply the place of leather in many of its applications. The fabric is composed of cotton or other fibrous substances either woven into cloth or in an unwoven state, and saturated or coated with a compound of linseed oil and burnt umber, prepared by boiling in every gallon of oil about three pounds of umber in a powdered state, for such a length of time, that the composition when cool will roll in the hands without sticking. The fabric may be made in forms suitable for the soles of boots and shoes, coverings for trunks, traveling bags, cap fronts, or as a substitute for carriage or harness leather, or for machine belting or hose pipe. The mode of producing the fabric differs to some extent according to the use for which it is designed, but the general principles are in all cases the same. The umber is stirred into the boiled oil until it reaches the point desired, when it is ready to be applied in the manner best calculated to produce special articles.