. Report upon the forestry investigations of the U. S. Department of agriculture. 1877-1898. Forests and forestry. TIMBER PHYSICS STRENGTH AND WEIGHT. 367 Eeswltb of tests in hendingf at relative elastic limit, [Pounds per square inch.] No 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 Species. Reduced to 15 per cent moisture. Longleaf pine. Cuban Shortleaf pine Loblolly pine . Reduced to 12 per cent moisture. White pine Red pine Spruce pine Bald cypress White cedar Douglas spruce a ... White oak Overcup oak Post oak Cow oak Red oak Texan oaK * Yellow oak W
. Report upon the forestry investigations of the U. S. Department of agriculture. 1877-1898. Forests and forestry. TIMBER PHYSICS STRENGTH AND WEIGHT. 367 Eeswltb of tests in hendingf at relative elastic limit, [Pounds per square inch.] No 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 Species. Reduced to 15 per cent moisture. Longleaf pine. Cuban Shortleaf pine Loblolly pine . Reduced to 12 per cent moisture. White pine Red pine Spruce pine Bald cypress White cedar Douglas spruce a ... White oak Overcup oak Post oak Cow oak Red oak Texan oaK * Yellow oak Water oak Willow oak Spanish oak Soagbark hickory . Mockernut hickory Water hickory Bitternut hickory . Nutmeg Pecan hickory Pignut hickory White elm Cedar elm „ White ash Green ash Sweet gum Average Average Highest Lowest of high- of lowest Average of all of single single est 10 per 10 per test. test. cent ol tests. cent of tests. tests. 1,160 13,500 2,400 11,100 5,400 8,500 390 12,900 2,200 11,500 5,600 9,500 330 2,900 9,700 4,800 7,200 050 12,700 3,100 10,800 5,400 8, 200 130 10,000 4,100 8,200 4,500 6,400 95 11,300 3,100 10, 300 4,500 7,700 170 13,700 3,000 11,200 5,000 8,400 655 12, 000 2,200 9,900 4,200 6,600 87 8,200 3,400 7,390 4,000 5,800 41 13,700 2,800 9,600 3,400 6,400 218 15,700 4,400 14,100 6,100 9,600 216 11, 600 4,000 9,500 5,400 7,500 49 10,600 5,100 9,600 6,000 8,400 256 14, 200 3,400 11, 600 5,000 7,600 57 14,500 5,100 13,600 5,600 9,200 117 12, 000 5,900 11,400 7,800 9,400 40 11, 800 4,900 11,100 5,100 8,100 31 11,800 4,500 11,400 5,500 8,800 r 153 13,100 2,700 10, 000 4,300 7,400 257 13, 500 5,100 11, 600 6,600 8,600 187 16,100 5,400 14,200 7,700 11,200 75 15, 400 4,300 14, 600 7,800 11,700 14 11,900 4,100 11,800 4,800 9,800 25 14,300 7,500 14, 000 7,600 11,100 72 12,200 4,200 11,200 6,400 9,300 37 15,000 5,800 14,400 7,900 11,500 30 17,500 7,400 16 400 8,300 12,600 18 9,700 5,300 9,600 5,400 7,300 44 10,700 4,700 10,100 5,800 8,
Size: 1689px × 1479px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectforestsandforestry
