Page:The Art of Bookbinding, Zaehnsdorf, 1890.djvu/133

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103
CALF COLOURING.

be the best and surest plan. It matters very little whether the calf is on the book or in the skin.

Sprinkles.—There are so many sprinkles, that it would be useless for me to enumerate a number, they are all worked in the same manner, by throwing the colour on finely or coarsely, as it may be wanted light or dark.

Presuming that the paste or ground- wash be thoroughly dry, take liquid salts of tartar and dilute with cold water, one part salts to two of water, in a basin; wash the calf with this liquid evenly, using a soft sponge. The calf will require the wash to be applied two or three times, until a proper and uniform tint be obtained. Each successive wash must be allowed to get thoroughly dry before the next be applied.

The next process will be to sprinkle the book, with the boards extended or open. Two pieces of flat wood, about three feet long, four inches in width, and half an inch thick, will be found very useful for supporting the book. These rods must be supported at each end, so that the book may be suspended between them, with the boards resting on the rods nearly horizontally. Now put into a round pan some of the copperas fluid, and into another some of the solution of salts of tartar. Use a pretty large brush for each pan, which brush must be kept each for its own fluid. The sprinkling may be commenced. The brushes being well soaked in the fluids, should be well beaten out, using a piece of broomstick or a hand pin to beat on before beating over the book, unless a coarse sprinkle is desired. Whilst beating over the book, the hands should be held up high, and also moved about, so that a fine and equal spray may be distributed; and this should be continued until the desired depth of colour is attained.

This may be varied by putting some geometrical design, cut out of thin mill-board, on the cover; or if the book is on any special subject, the subject itself put on the cover