. Report upon the forestry investigations of the U. S. Department of agriculture. 1877-1898. Forests and forestry. 394 FORESTRY INVESTIGATIONS U. S. DEPARTMENT OF AGRICULTURE. SAMPLE RECORDS OF TESTS. CKOSS BREAKING TENT. [116. Mark, 1. White pine. Length, inches. Height, inches. Breadth, inches. Strength of extreme fiber, * 3 W I where /=2y^s==5,660pounds per square inch. Modulus of elasticity =1,320,000 pounds per square inch. Total resilience =3,460 inch-pounds. El. Res., 550. Resilience, per cubic inch. = inch-pounds. El. Res., [Number annual rings per incb =19 ] J
. Report upon the forestry investigations of the U. S. Department of agriculture. 1877-1898. Forests and forestry. 394 FORESTRY INVESTIGATIONS U. S. DEPARTMENT OF AGRICULTURE. SAMPLE RECORDS OF TESTS. CKOSS BREAKING TENT. [116. Mark, 1. White pine. Length, inches. Height, inches. Breadth, inches. Strength of extreme fiber, * 3 W I where /=2y^s==5,660pounds per square inch. Modulus of elasticity =1,320,000 pounds per square inch. Total resilience =3,460 inch-pounds. El. Res., 550. Resilience, per cubic inch. = inch-pounds. El. Res., [Number annual rings per incb =19 ] July 18, 1891. Load. h. m. 4 24 25 26 27 28 29 31 33 35 37 40 .200 1,000 1,600 2, 000 2,200 2,400 2,600 2,800 3,000 3,200 3,300 Deflection. ,042 • *jX X .300 ,454 .511 .595 .690 .853 Micrometer. 3 065 1 226 1, 568 1. 730 2 236 Kemar& 2? Maximum Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Fernow, B. E. (Bernhard Eduard), 1851-1923; United States. Forest Service. Washington, Govt. print. off.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectforestsandforestry
