Stránka:book 1922.djvu/363

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Forestry

feet high, it was one inch thick and had 23 rings at the bottom. 

Six feet up it had 1 2 rings and 20 whorls — in all it appeared to have 43 whorls, of these 20 were on the lower part. This tree grew up in a dense thicket under great difficulties and was of very slow growth, the disagreement between rings and whorls was puzzling. Jersey Pine, Scrub Pine. {Pinus virginiana) Usually a small tree. Leaves i^ to 2 inches long and in bunches of 2's; cones i^ to 2 inches long. Wood soft, weak, light orange; a cubic foot weighs 33 lbs. In sandy soil.