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Some Strength Properties of Second-Growth Douglas Fir

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Increasing use of second-growth Douglas-fir focuses interest on the physical properties of such wood in relation to those of old-growth timber. Test data are presented on specific gravity, modulus of rupture, and modulus of elasticity of wood samples sawn from various heights and radial zones from three sample second-growth trees grown on Sites II, III, and IV.
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Document Type: Journal Article

Affiliations: Assistant Professor of Forestry, Yale University School of Forestry, New Haven, Conn.

Publication date: 01 January 1949

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