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Technology & Engineering Forestry

Identification of North American Commercial Pulpwoods and Pulp Fibres

by (author) L. Strelis & R.W. Kennedy

University of Toronto Press
Initial publish date
Apr 2019
Forestry, Trees, General
  • eBook

    Publish Date
    Apr 2019
    List Price

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This publication is for those who are concerned with the identification of wood samples and the fibre constituents of paper and paper products, an ability essential for anyone in the pulp industry. In determining the quality of a paper product, the inherent properties of wood are as importantand, if not more so, than the pulping process and other mill treatments to which the wood subjected. Besides wood, a large number of nonwoody fibres find their way into paper products and it is equally important to be able to identify these as well as the woody fibres.


This book brings together what are considered the most useful wood and fibre features for the purposes of indentification. In the first section separate keys are given for the identification of both softwood and hardwood pulps and wood samples. The keys distinguish between different tree genera or dissimilar groups of species within the same genus. The diagnostic features of all commercial pulpwoods have been numbered, defined and illustrated, with a total of 88 photomicrographs, and instructions are given on how to prepare a sample and proceed with its examination and subsequent identification.


The second section of the book deals with the identification of 28 natural nonwoody and 9 man-made fibres. The features of the individual fibres as well as the results of staining and solubility tests, where applicable, are described in detail. Ninety-five photomicrographs illustrate this section which includes an identification key summarizing the useful features of these fibres.

About the authors

L. STRELIS grew up and studied in Lithuania where he graduated as a Forester in 1931. After further study in forestry at the University of Munich he came to Canada and has been with the Pulp and Paper Research Institute of Canada since 1951. In 1956 he was appointed Supervisor of the Light Microscopy Section at the Institute.

L. Strelis' profile page

R.W. KENNEDY studied at the College of Forestry, State University of New York, received his M.F. from University of British Columbia and his Ph.D. from Yale University. He has taught in the Faculty of Forestry at both the University of British Columbia and the University of Toronto. Since 1966 he has been the Head of the Wood Biology Section at the Forestry Products Laboratory, Vancouver.

R.W. Kennedy's profile page