TREE-MARBLES.
These marbles, which were first executed in Germany, from whence they passed into England, are formed by bending the boards in the middle, so that the water and colours flow from the back and fore-edge to the centre, in the form of branches of trees. Those who have never seen the tree-marbles of Mr. Clarke, of London, can form but little idea of the beauty of which this style is susceptible. The name is also given to such as are made to imitate the grain of the wood.
WALNUT.
Formed by sprinkling black and brown only, as for the common marble.
CEDAR.
After sprinkling as for the walnut, and before perfectly dry, apply lightly a sponge presenting large holes dipped in orange upon various places on the cover, so as to form a description of clouds. Afterwards apply the fine red, with a similar sponge, nearly upon the same places, and when dry give the whole two or three coats of yellow, taking care that each penetrates evenly into the leather.
MAHOGANY.
The proceedings are nearly the same as for the walnut, the difference being merely in sprinkling the black more boldly, and, when perfectly dry, giving two or three uniform coats of red.
BOX.