Number 3 / Fall 1969

Research Contributions

• A Professional Not A Research Society

  John G. Haygreen

  179-179

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• Variation in The Cell-Wall Density of Wood

  Robert M. Kellogg, Frederick F. Wangaard

  180-204

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• Thermogravimetric Analysis of Wood Lignin and Hemicelluloses

  F. C. Beall

  215-226

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• Effect of Rainfall and Elevation on Specific Gravity of Coast Douglas-Fir

  L. E. Lassen, E. A. Okkonen

  227-235

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• Plane Stress and Plane Strain in Orthotropic and Anisotropic Media

  B. A. Jayne, Michael O. Hunt

  236-247

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• Notes and Correspondence

  254-254

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