"No," said Forester; "I should prefer having it of its natural color. The bark of the beech has beautiful colors, if they are only brought out by a coat of varnish."

"Brought out?" repeated Marco.

"Yes," said Forester. "There is a kind of fine dust, or something like that, which dims the bark; but, when you put on oil or varnish, there is a sort of transparency given to the outside coating, which brings the natural color of the bark fully to view."

"Then I will get my cane varnished, when I get to Bath," said Marco.

"Ebony," said Forester, "is used a great deal where a contrast with ivory is wanted. Ebony is hard and fine-grained, like ivory, and it takes a high polish. So, whenever they want a contrast of black and white, they take ebony and ivory."

"When do they want a contrast between black and white?"

"One case," replied Forester, "is that of the keys of a piano forte. They want the short keys, which mark the semi-tones, of a different color from the others, so that the eye will catch them as quick as possible. So in a chess-board. They sometimes make chess-boards with alternate squares of ebony and ivory."

"I think it would be just as well to take common wood and paint it black," said Marco, "rather than pay so much money for ebony."

"No," said Forester, "that would not do so well. The paint would wear off; or, if it did not wear off by handling, still, if it got a little knock or hard rub, a part would come off, and that would show a little spot which would be of the natural color of the wood. This would look very badly."