3110. Yellow Egyptian Marble for Leather Book-Covers

3110.    Yellow Egyptian Marble for Leather Book-Covers. Boil quercitron bark with water and a little powdered alum, over a slow fire, until it is a good strong yellow. Pour the liquid into a broad vessel, sufficiently large to contain the cover when extended. Before the liquid is cool, take the dry cover, and lay the grain side flat on the color; press it lightly that the whole may receive the liquid; let it soak some time, and then take it from the vessel. The book must be covered in the usual manner, and permitted to dry from the fire. Glair the book; when dry, place it between the wands; take a sponge and water, and press large spots thereon; dip a quill-top into the vinegar black, with it touch the water on the cover in different parts, which Will have a fine effect when managed with care. Let it stand a few minutes, then take off the water with a clean sponge.

3111. Green Egyptian Marble for Leather Book-Covers

3111.      Green Egyptian Marble for Leather Book-Covers. Color the cover in a large vessel, as mentioned before, with Scott's liquid blue; when done, put it into a vessel of clear water for an hour. Take it out and press out the water, then cover the book. Glair the cover; when dry, place it between wands, and drop weak potash water from a sponge thereon; dip the quill-top into the strong black, and touch the water with it. This must be repeated till you have a good black. When dry, clear it with a sponge and water.

3112. Bed Egyptian Marble for Leather Book-Covers

3112.      Bed Egyptian Marble for Leather Book-Covers. Boil Brazil dust in rain-water on a slow fire, with a little powdered alum and a few drops of solution of tin, till a good color is produced. Dip a piece of calf leather into the liquid, and you may ascertain the color wanted. If too light, let it boil till it is reduced to one half of the quantity ; take it from the fire, add a few more drops of the solution of tin, and pour it into a largo vessel. Put the dry cover on the liquid, and let it remain for a quarter of an hour, then press out the water. Color it over with a sponge and the quercitron bark water, and cover the book. Glair the cover, place it between wands, dash on water with a brush, also potash water; and, lastly, finish it with the strong vinegar black, with the quill-top. Observe that too much black is not put on ; the intention of the marble is to show the red as transparently as possible.

3113. Green Marble for Leather Book-Covers

3113. Green Marble for Leather Book-Covers. The edge must be marbled with a good bright green only. When the color is prepared with the ox-gall, and ready for use, a few drops of sweet oil must be mixed therein, the color thrown on with a brush, in largo spots, till the gum is perfectly covered. The oil will make a light edge round each spot, and have a good effect. Blue, green, and brown may be also used separately in like manner. Sheets of paper may be done, having a trough large enough, and the sheets damped as for printing, before marbling. Spirits of turpentine may be sprinkled on the colors, which will make white spots.