Stránka:book 1922.djvu/430

400 The Book of Woodcraft was the best available for making the pins in frame barns. In Wyndy- goul Park I cut a Pin Oak that was no feet high and 32 inches across the stump and yet had but 76 rings of annual growth. Will not stand exposure next to ground. A cubic foot weighs 34 lbs. Its acorns take two seasons to ripen. Leaves 4 to 6 inches long. In moist woods and along swamp edges. ■[ "'J"""[ ' I Kyi I sYcJAK BLACHJ/<^H OR BARREN 0/<K • -.UV'v Black Jack or Barren Oak. {Quercus marilandica) A small tree seldom up to 60 feet high. An unimportant tree of barren wastes. Leaves 3 to 5 lobed downy below, bristle-tipped and 3 to 7 inches long; acorns take two seasons to ripen. Wood hard and dark, not durable. A cubic foot weighs 46 lbs.