It will now be observed, that we have processes for the manufacturing of a _purely vegetable leather_, far superior to any other, at _one-third_ the price—which will not decompose in any latitude, and is not affected by atmospheric changes—is perfectly sweet, and may be worn at any time, through heat or cold, wet or dry—through acids or oily combinations, with entire safety. VARIOUS FIBROUS COMPOUNDS FOR IN-SOLES, STIFFENINGS OR COUNTERS, FOR ALL DESCRIPTIONS OF CEMENTED BOOTS AND SHOES. May be made by the same process as the artificial leather, and rolled to any required thickness. These compounds make the best counters for all kinds of cemented boots and shoes, as they are _water proof_, and easily fitted and moulded to the shoe, after being properly warmed in the “Heater.” Old sail cloth, or cotton fabrics of every description, that may have become useless for any other purpose, make good in-soles, by rolling thereon a thin sheet of gutta-percha, and may be combined to any required thickness. Gutta-percha may be applied to all kinds of pasteboard, straw-board, coarse paper or cloth, thus forming a _cheap and convenient water-proofing_. This may be done by simply spreading the warm gutta-percha upon its surfaces. After the cement has been submitted to a drying process of a few hours, it should then be subjected to a heat of about 180° for the space of five minutes. This process completely expels the solvent, at the same time causes the cement to penetrate the substance upon which it is spread. This material for linings and coverings of boxes, or boxes made of heavy coarse paper thus prepared for packing boots and shoes, all kinds of fine goods, medicines, vegetable compounds, highly finished tools, etc., may be thus shipped on long voyages, and subjected to damp, mildew, and decomposition, with the utmost safety. Edges of boxes may be cemented together with gutta-percha by a warm iron, precisely like the soldering process. Common paper boxes may be made water-proof by the process just described. The cloth or paper thus prepared, forms an excellent water-proof lining for trunks, valises, or chests. Stout cloth thus prepared may be made into tubes for conveying water to all parts of the house, or from the spring to the house. Water thus conducted _remains as pure and sweet_ as when taken from the spring, and the tube is _literally indestructible_ by all ordinary agencies. Excellent _speaking tubes_ may be thus prepared at a trifling expense. PRACTICAL HINTS.