. Bulletin. Natural history; Natural history. Trees of Illinois 121 better established islands of the Mississippi and Illinois Rivers. In the Kaskaskia bottoms, there are trees To years old and 75 feet high which have a diameter of 20 to 24 inches; while the largest tree that has been measm'ed was 112 feet high and 45 inches in diameter. With the Pin Oak grow such trees as ash, maples, hickories, the Swamp White, Cow, and Burr oaks, Cottonwood, River Birch, Black Walnut, the Red and Black gums, and several others. Uses: The hard, though coarse-grained, light-brown wood of the Pin Oak. often ca
. Bulletin. Natural history; Natural history. Trees of Illinois 121 better established islands of the Mississippi and Illinois Rivers. In the Kaskaskia bottoms, there are trees To years old and 75 feet high which have a diameter of 20 to 24 inches; while the largest tree that has been measm'ed was 112 feet high and 45 inches in diameter. With the Pin Oak grow such trees as ash, maples, hickories, the Swamp White, Cow, and Burr oaks, Cottonwood, River Birch, Black Walnut, the Red and Black gums, and several others. Uses: The hard, though coarse-grained, light-brown wood of the Pin Oak. often called "water oak" in the southern counties, is strong and heavy. It is suitable for all kinds of rough construction, such as barn sills, bridge planking, mine cars, and the like; but, because the tree prunes itself very poorly, pin oak kunber contains a considerable number of knots and is, on that account, not so good for interior finishing or for beams, when strength is required. Its outstanding use is for piles. In the early days Pin Oak v/as used for shingles and clapboards. The logs were cut in short lengths of 3 or 4 feet and then quartered. Pieces with straight grain were selected, and from them the shingles and clapboards were split, or "rived," by means of a knife-like tool which was driven through the wood with a mallet. The shingles and clapboards so produced were diu"able, but in the sun and wind they had a tendency to curl, which gave the roofs made of them a shaggy appearance. The Pin Oak is not an abundant tree in our upland forests, but on the bottomland it is more common, constituting per cent of the stand in the Cypress and mixed hardwood type and per cent of the stand in the mixed hardwoods of main streams. In the virgin bottomland forests, the Pin Oak on a sample acre amounted to 2,360 board feet, a quantity exceeded only by the Elm, Soft Maple, and the Red Gum. As the tree grows rapidlv, its use should be encouraged both for
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