Page:The Art of Bookbinding, Zaehnsdorf, 1890.djvu/130

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and tail, with a pair of compasses to the width required for finishing inside the board. With a very sharp knife the paper is to be cut through to the depth of the paper only, by laying the straight edge on the marks made by the compasses. This has the advantage of procuring an exact margin round the board, but it must be done quickly or the paper will stick to the leather round the board from the paste getting dry, the leather absorbing the watery particles in the paste.

The other way is to lay the paper back, and down on the board, and then to mark it. A tin is then to be placed between the book and paper, and the paper cut to the marks made. The paper is then pasted down as above. When pasted down, the book should be left standing on its end, with boards left open until thoroughly dry, which will be about six hours. A tin should be kept especially for cutting on, and the knife must be as sharp as possible. This latter method is used for all half bindings.


Calf Colouring.

Although coloured calf-skins may be bought almost as cheaply as smooth calf (the term given to uncoloured ones), yet there are so many reasons why coloured calf should not be used, that I give such instructions as will enable any one to colour, sprinkle, and marble his own leather.

The skins may, however, be procured already sprinkled or marbled at most leather shops. This plan of sprinkling and marbling the whole skin is good enough for cheap or