The Boot and Shoe Manufacturers' Assistant and Guide. / Containing a Brief History of the Trade. History of India-rubber and Gutta-percha, and Their Application to the Manufacture of Boots and Shoes. Full Instructions in the Art, With Diagrams and Scales, Etc., Etc. Vulcanization and Sulphurization, English and American Patents. With an Elaborate Treatise on Tanning.

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MIDDLE SOLES, AND SPUR, OR SPRING LIFTS.

After they have been properly fitted, ready for use as in the common form, the parts should be dried and a thick fibre raised, as before described for the outer sole, only that a fibre should be raised on both sides, as will be readily understood. Cement on both sides. This process may be done before cutting into soles or lifts, at the option of the manufacturer.

TO PREPARE IN-SOLES.

Cut from thin leather skirting or shavings. After properly fitting to the pattern or last, the edges of the in-sole should be reduced to a proper thickness. A strong fibre should be raised on the side on which the cement is to be applied, the stock being previously dry. Then cement as before. One coat is sufficient if the cement is thick. If not, spread again upon the edge, as that portion of the sole should receive the thickest coating, for the purpose of holding, with great firmness the linings or upper, when lasted, as the shoe may require.

TO PREPARE COUNTERS OR STIFFENINGS.

After properly fitting and drying, cement on both sides of the lower edges, corresponding to the cemented portion of the lining or “upper.”

PREPARATION OF STOCK FOR CLOTH SHOES.—PREPARATION OF THE UPPER STOCK.

First cement the linings on both sides entirely around, as far as they are to be drawn over the edge of the last. Then cement inside of upper, to correspond with the cemented portion of the linings. Place them in position for drying, so that the cement shall not be brought in contact with any other part of the upper. In order to facilitate the cementing process, the uppers or linings, may be so packed or placed, the one upon the other, that large quantities may be cemented at the same time. This should be done before binding.

TO PREPARE UPPERS MADE OF ANY DESCRIPTION OF LEATHER, OR PART LEATHER AND CLOTH.

The linings, (if any are used), should be cemented as described for the cloth shoe. The inside of the leather portion or parts of the upper should be made as fibrous as possible. Then apply the cement as described for linings. When fully dry they are ready for lasting.