390 Woodcraft Mantial for Boys
to 8 to the inch, the cones half an inch long or less. Man-
itoba to Nova Scotia, and Pennsylvania; south on mountains to Vorth Carolina. Quaking Asp, Quiver Leaf, Aspen Poplar, or Popple {Pofnilus tremuloides) A small forest tree, but occasionally 100 feet high. Readily known by its smooth bark, of a light green or whitish color. The wood is pale, soft, close-grained, weak, perishable, and light. A cubic foot weighs 25 lbs. Good only for paper pulp, but burns well when sea- soned. When green it is so heavy and soggy that it lasts for days as a fire check or back-log. Leaves li to 2 indies long. Can- ada and Northern States. BUck Willow (SaHx nigra) The common Willow of stream-banks, usually 20 to 40 feet high, sometimes 100. Bark nearly black. Its long, narrow,
