Number 1 / Spring 1972

Research Contributions

• Letter From the Editor

  Robert W. Meyer

  1-1

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• Variation in Permeability and Treatability in Shortleaf Pine and Yellow Poplar

  E. T. Choong, P. J. Fogg

  2-12

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• Comparison of Certain Structural Properties Among 3-Ply, 4-Ply and 5-Ply, 1/2-Inch Southern Pine Plywood Sheathing

  Evangelos J. Biblis, Shan-Tung Hsu, Yen-Ming Chiu

  13-19

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• Shrinking and Swelling Differences Between Hardwoods and Softwoods

  Herbert A. Schroeder

  20-25

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• Short-Term Creep as Related To Microfibril Angle

  M. Lotfy, M. El-osta, R. W. Wellwood

  26-32

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• Extractives From Grand Fir [Abies Grandis (DOUGL.) LINDL.] Bark

  I. H. Rogers, D. Grierson

  33-37

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• Relationships in Black Walnut Heartwood Between Color and Other Physical and Anatomical Characteristics

  Charlotte H. Hiller, Frank Freese, Diana M. Smith

  38-42

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