For the production of marbled edges, the following preparation of size is advisable and in general use: boil 7 quarts of water and 3-1/5 ounces of carrageen moss, after boiling add 1 quart of cold water, in which one ounce of common soda has been dissolved, allow it to stand for 12 hours, and filter it through a linen cloth when it will be ready for use. The preparation of colors is effected as with drawn marbles on a small surface of size, but it is necessary, that the colors for marbled edges expand more than the others. As first color, black is generally used, which is thrown on by a brush in the same way as in making nonpareil marble, but the other colors must be thrown on by a broom-corn whisk and the more colors are used, the smaller must be the drops of the colors which are thrown on the size, and it is further essential that they should be evenly divided around. Then use gall-water which consists of 10 parts water and 1 part gall and serves to arrange the different colors so that one color can be concentrated in one point, secondly, it has the effect of forming a white network of veins, which enhances the effect of the other colors, and finally, the ground color comes into play, putting the whole carpet of colors into motion. This color is nothing but a common nonpareil color and is used either by itself or in a mixture with other colors. In preparing the ground or body color, enough of gall is added so as to slightly force the other colors into veins. An equal part of sprinkling-water is added to it, to give it the energetical power of spreading out essential to the formation of a beautifully veined net. The body-color is thrown on by a medium sized bristle brush, which must be tied near the end for this purpose. This brush is to be equally moistened with the body color, the best would be to moisten it by the aid of a common brush. When this is done throw the color by beating the bristle brush on a small board upon the carpet of colors. By this process larger or smaller specks of the body-color are formed. THE DARK-RED MARBLE. The marbled edges are always named from the body-color, as the latter always occupies the largest space on the edge. For dark-red marble the following colors are used: black, light pink (10 parts white, 1 part safflower-carmine), light-grey (10 parts white, 1 part black), gall-water and, finally, the ground color. The latter is composed of 2 parts carmine-lake, 1 part black and 3 parts sprinkling-water. THE PLAIN-GRAY MARBLE. This kind of marbling is the most profitable of the veined marbles because it can be produced very rapidly.