Boots or shoes made, or repaired by this process, are made to be _worn_, not roasted and burnt, as is too often the case, by the reckless and imprudent. The feet may be _warmed_ as _thoroughly_, and even more so, with the _gutta-percha cemented shoe_, as with the common pegged or sewed shoe. Yet _care_ must be used not to heat the shoe to the _injury_ of the leather. Persons wearing these shoes will soon learn that they seldom require to be warmed, as the soles _retain the heat_ much longer than the common shoe. Hence, whenever it becomes necessary to warm the feet, much less heat is required, and _less time_ in warming them. HINTS TO REPAIRERS OF BOOTS AND SHOES. Repairers of the gutta-percha cemented shoes will soon find that gutta-percha for a cement, is far superior to the old method, for all kinds of repairing. _All the thin stock or bits of leather can be cemented for taps, lifts, counters, or for any other purpose_, and worked up to the best advantage to all concerned. He can apply leather, or sheet gutta-percha for soles or taps, of any thickness desired. IMPORTANT FACTS FOR MANUFACTURERS. Various compounds of fibrous substances can be used and made by mixing and grinding gutta-percha with the following substances, between heated rollers. _Artificial leather_ may be made by rolling and mixing saw-dust of any kind, or other fibrous substance, with gutta-percha, as chopped tow, flax, juto, cotton waste, etc., etc. Take maple saw-dust, two parts, gutta-percha one part. This compound thus prepared, will resemble oak-tanned leather. For the gutta-percha cemented shoe, this leather is considered as being _far superior to any leather in use_, being more durable, and leaving no waste, as all scraps can be again mixed and rolled as at first. The more it is mixed and rolled the better it becomes. Mahogany saw-dust, or other red-wood saw-dust, mixed and prepared as before, will produce an article resembling red sole leather, or hemlock tanned. For repairing shoes, these compounds, or artificial leather, is superior to common leather, as it can be moulded and heated and applied at once, without the preparation required in common leather. It is, therefore, simply to heat and apply, as the gutta-percha is thoroughly mixed and ready for use; or it may be moulded into heels, in a solid form, and then applied. COMPOUNDS FOR HEELS OF SHOES OR BOOTS. Take two parts gutta-percha, one part sand, ground flint or granite, mix them well by passing between heated rollers. It is now ready to be moulded into heels, and will produce an article of wonderful durability. The compounds may be varied to suit the fancy of the manufacturer. The proportions may be varied by mixing a portion of saw-dust, or other fibrous substance. Heels thus made are exceedingly cheap, and will out-wear the firmest leather.