Home › Photography › To Sprinkle Books

To Sprinkle Books

Take a stiff brush made of hogs' bristles, perfectly Photography. Photography is based upon the law or principle that clean, dip it in the color; squeeze out the sunlight decomposes certain combinations of superfluous liquid; then rub a folding-stick the salts of silver. For instance, if a piece of across the brush, and a fine sprinkle will fall paper is first dipped into a solution of chloride on the edge of the book, which should be of sodium (common table salt,) and then, previously screwed tight in the cutting-press. when dried, floated on a solution of nitrate of Repeat the operation until the color is thrown silver, it will, upon being brought to the equally on every part of the leaves. The light, begin to darken, and finally assume an brush should be held in the left hand, and the stick in the right. absolute black. It will be seen that if any opaque or semi-opaque body is interposed between the light and the paper, that portion which is so protected from the action of the light remains white, and thus impresses upon the paper, in a negative condition, the form 3120. Chinese Marble for Leather Book-Covers. Color the cover of the book dark brown, and when dry put it into the cutting-press, with the boards perfectly flat; mix whiting and water of a thick consistence or figure of the article so used. and throw it on, in spots or streaks, some The entire matter embraced in Nos. 3128 large and some small, which must remain till dry. Spot or sprinkle the cover with liquid blue, and lastly throw on large spots of liquid red. The colors must be dry before washing off the whiting.