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296 Woodcraft Manual for Boys feature, i} to 2 inches long. Maine to Nebraska and south to the Gulf. Gray Birch, or Aspen-leaved Birch {BePida populifolia) A small tree found on dry and poor soil; rarely 50 feet high. Wood soft, close-grained, not strong, splits in drying, useless for weather or ground work. A cubic foot weighs 36 lbs. Leaves 2 to 3 inches long. It has a black triangular scar at each armpit. Quebec south to Maryland. White, Canoe, or Paper Birch {Beiula papyrifera) A tan forest tree up to 80 feet high; the soiu-ce of bark for canoes, etc. One of the most important trees in the northern
