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The back may be damped with a sponge lightly charged with water, or perhaps a better method is to place the book or books in a press, screw up tightly, and soak the backs with thin paste, leaving them soaking for an hour or two; they will want repasting two or three times during the period; the whole of the paper, glue, and leather can then be easily scraped away with a blunt knife; a handful of shavings rubbed over the back will make it quite clean, and no difficulty will be met with if the sections are taken apart while damp. He sections must, as pulled, as pulled, be placed evenly one on the other, as the paper at back retains sufficient glue to cause them to stick together if laid across one another. The whole must then be left to dry. When dry the groove should be knocked down on a flat surface and for this the knocking-down iron screwed up in the lying press is perhaps the best thing to use. The groove is the projecting part of the book close to the back, caused by the backing, and is the groove for the back edge of the mill-board to work in by a hinge; this hinge is technically called the “joint.” Continue reading →