Stránka:roll 1916.djvu/293

Things to Know and Do 369 inches long, and are in bunches of 3's; cones, 6 to lo inches kmg. Range, Virginia to Louis'ana and Florida. Tamarack, Larch, or Hackmatack {Larix laricina) A tall, straight tree of the northern swamps yet often found flourishing on dry hillsides. One of the few conifers that shed all their leaves each fall. Leaves i to i inch long; cones i to finch. Wood very resinous, heavy, and hard, "a hard, soft wood" very durable as posts. In Manitoba I have seen tamarack fence posts unchanged after twenty years' wear. It is excellent for firewood , and makes good sticks for a rubbing-stick fire. A cubic foot weighs 39 lbs. Found north nearly to the limit of trees; south to nortitem New Jersey and Minnesota. White Spruce (Picea canadensis) Evergreen; 60 to 70 or even 150 feet high. Leaves § to f inch long; cones i| to 2 inches long, are at the tips of the branches and deciduous; the twigs smooth. Wood white, light, soft, weak, straight- grained, not dur- able; a cubic foot wei^ 25 lbs. Its roots afford the wat- tap or cordage for canoe-building and camp use generally. North to the limit of trees east of Rockies, soutli to Dakota, Wisconsin, and Maine. Hemlock {Tsuga canadensis) Evergreen; 60 to 70 feet high; occasionally 100; wood pale, soft, coarse, splintery, not durable. A cubic foot weighs 26 lbs. Bark full of tannin. Leaves ^ to f inch long: cones about the same. Its knots are so hard that they quickly turn the edge of an axe or gap it as a stone might; these are probably