. Bulletin. Natural history; Natural history. 70 Illinois Natiual Histouv Si hvky ditions are particularly favorable. Usually it grows in company with such trees as the ashes and hickories, the Tulip Tree, Red Gum, Hack- berry, and Honey Locust. Uses: The heavy, hard, coarse-grained, rich-brown wood of the Black Walnut, with its thin, pale sapwood. is not only strong and durable but also easily worked and capable of being highly and beautifully pol- ished. As a consequence, the Black Walnut is one of the most valuable of our timber trees. It is in great demand in the manufacture of
. Bulletin. Natural history; Natural history. 70 Illinois Natiual Histouv Si hvky ditions are particularly favorable. Usually it grows in company with such trees as the ashes and hickories, the Tulip Tree, Red Gum, Hack- berry, and Honey Locust. Uses: The heavy, hard, coarse-grained, rich-brown wood of the Black Walnut, with its thin, pale sapwood. is not only strong and durable but also easily worked and capable of being highly and beautifully pol- ished. As a consequence, the Black Walnut is one of the most valuable of our timber trees. It is in great demand in the manufacture of furni- ture, gunstocks, steering wheels, and automobile wheel spokes, and during the World War it was one of the woods used in airplane propellors. For wood carving, it always has been our finest native stock. At the present time, the greatest demand is for logs 16 inches or more in diameter, which can be sawed into veneer. Trees that have been grown rapidly in small groups furnish veneer wood with striking figures, which is used extensively in the finishing of organs, pianos, and cabinet articles such as desks, as well as for panels in the interior decoration of houses. Between 50 and 60 years ago, the Black Walnut trees in the Wabash Valley, many of which were 125 feet high, with a clear bole 50 feet long and 15 feet around, were grubbed out, instead of being cut as they are now, in order to obtain lumber bearing the fantastic patterns formed by the con- torted grain of the wood where the roots and trunk join. Native trees sometimes bear large deformities on their trunks, to which has been given the name "burl"; and these structures are so much in demand that they can be sold by the pound, for they furnish a pattern-grained veneer which, when carefully matched, produces decora- tive effects very similar to the expen- sive, imported Circassian walnut. The consumption of walnut lum- ber in Illinois is very large, and the price which the logs will bring at the mill, g
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