SEA-OTTER.
"It comes here from Astrachan, at the mouth of the Volga," said the Doctor. "Its preparation is one of the industries of Central Asia, for which Astrachan is the great market. This fur is black, and remarkably soft and silky. The lamb is killed immediately after he sees the light, and the younger he is at the time of his death the finer and more valuable is the skin. Persia supplies large quantities of this fur, and it varies from black to gray or white.
THE BEAVER.
"I mentioned the black fox as a very costly fur. The Emperor has a cloak which is valued at ten thousand dollars; only an emperor or some one else with plenty of money at his command could afford such a garment. The fur of the black fox is rarely seen outside of Russia, as only a small quantity of it comes to market. Plenty of counterfeit fur of this kind can be found in England; it is made by dyeing the skin of the common fox, and the work is done so skilfully as to defy detection by any one not an expert in the fur trade.
