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412 The Book of Woodcraft Hackberry, Sugarberry, Nettle Tree or False Elm. {Celtis occidentalis) A tall slender tree, 50 feet, rarely 100 feet high. Wood soft, pale, coarse, a cubic foot weighs 45 lbs. Leaves 2 to 6 inches long. Its style is somewhat elm-like, but it has small dark purple berries, each with a large stone like a cherry pit. The wood is "used for the shafts and axletrees of carriages, the naves of wheels, and for musical instru- ments. The root is used for dyeing yellow; the bark for tanning; and an oil is expressed from the stones of the fruit." {Emerson.) In dry soil.