3101. Day and Martin's Blacking

3101. Day and Martin's Blacking. According to Mr. W. C. Day, the method of making the famous " Day and Martin's Blacking" is as follows: Bone-black in a state of powder, is mixed with sperm oil until the two are thoroughly incorporated. Sugar or molasses is then mixed with a small portion of vinegar and added to the mass. Oil of vitriol is next added, and when all effervescence has ceased, more vinegar is poured in until the mixture is of a proper consistency. This constitutes the liquid blacking of the above-named manufacturers.

3102. Method of Marbling Books

Method of Marbling Books. This is performed by laying the color on the edges with a brush, or by means of a wooden trough and gum-water as follows : - Provide a wooden trough, 2 inches deep, 6 inches wide, and the length of a super-royal sheet; boil in a brass or copper pan any quantity of linseed and water until a thick mucilage is formed; strain it into the trough, and let it cool; then grind on a marble slab any of the following colors in small beer. For Blue, Prussian blue or indigo.

Red, rose-pink, vermilion, or drop lake.

Yellow, King's yellow, yellow ochre, etc..

White, flake white.

Black, ivory or burnt lampblack.

Brown, umber, burnt umber, Vandyke brown, sienna, burnt sienna; black mixed with yellow and red, also makes brown.

Green, blue and yellow mixed.

Orange, red and yellow mixed.

Purple, red and blue mixed.

For each color you must have two cups, one for the color after grinding, the other to mix it with ox-gall, which must be used to thin the colors at discretion. If top much gall is used, the color will spread; when they keep their place on the surface of the trough, when moved with a quill, they are fit for use. All things being in readiness, the colors are successively sprinkled on the surface of the mucilage in the trough with a brush, and are waved or drawn about with a quill or stick, according to taste. When the design is thus formed, the book, tied tightly between cutting-boards of the same size., is lightly pressed with its edge on the surface of the liquid pattern, and then withdrawn and dried; the covers may be marbled in the same way, only letting the liquid colors run over them. The film of color in the trough may be as thin as possible, and if any remains after the marbling, it may be taken off by applying paper to it before you prepare for marbling again.

3103. Blue Sprinkle for Bookbinders

3103. Blue Sprinkle for Bookbinders. Strong sulphuric acid, 8 ounces; Spanish indigo, powdered, 2 ounces. Mix in a bottle that will hold a quart, and place it in a water-bath to promote solution. For use, dilute a little to the required color in a teacup.

3104. Blue Marble for Books, etc.

3104.     Blue Marble for Books, etc..

Color the edges with King's yellow, and when dry tie the book between boards. Throw on blue spots in the gum trough, wave them with the iron pin, and apply the edges thereon.