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  1. Volume tables for red alder.

    The increasing importance of red alder as a commercial species in the Pacific Northwest has prompted the three agencies listed above to pool their tree measurement data for the construction of standard regional red alder volume tables. The tables included here were based on trees from a variety of sites and form classes. Approximately one quarter of the total number of...

    Author(s):
    Floyd A. Johnson; R. M. Kallander; Paul G. Lauterbach
    Year:
    1949
    Keywords:
    Source:
    PNW Old Series Research Notes No. 55, p. 1-10

  2. Use of herbicides on forest lands in southwestern Oregon.

    A substantial portion of the commercial forest land in southwestern Oregon is occupied by dense stands of brush species or by understocked stands of conifers with a dense understory of brush. Individual brushfields range in size from small patches a few acres in extent to large, continuous areas covering more than 10,000 acres. Climatically, the area is warmer and...

    Author(s):
    H.J. Gratkowski
    Year:
    1961
    Keywords:
    Source:
    PNW Old Series Research Note No. 217, p. 1-18

  3. Variation in vegetation following slash fires near Oakridge, Oregon.

    The following photographic sequences illustrate how vegetation differed following slash fires on two logged areas 9 miles apart. As part of a regional study to determine effects of slash burning, two pairs of plots were established on the Willamette National Forest near Oakridge, Oreg. Both areas were clearcut in 1949, and the slash was burned in October of the same...

    Author(s):
    Harold K. Steen
    Year:
    1965
    Keywords:
    Source:
    Res. Pap. PNW-RP-025. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 6 p

  4. Tree damage resulting from thinning in young-growth Douglas-fir and western hemlock.

    Thinning trials on three cooperative experimental forests in western Washington have provided an excellent opportunity to evaluate tree damage resulting from typical thinning operations in young-growth timber. The type and degree of damage can, of course, be expected to strongly affect condition and vigor of the residual stand and ultimate success of a thinning regime...

    Author(s):
    Norman P. Worthington
    Year:
    1961
    Keywords:
    Source:
    PNW Old Series Research Note No. 202, p. 1-7

  5. Site classification for even-aged stands of western hemlock.

    In 1937 normal yield tables were compiled by Meyer for even-aged stands of Sitka spruce and Western hemlock. The basic data from which the tables were compiled were collected over the entire coastal range of the species, extending from southern Oregon through Washington end British Columbia to southeastern Alaska. Data were obtained from temporary sample plots...

    Author(s):
    George H. Barnes
    Year:
    1949
    Keywords:
    Source:
    PNW Old Series Research Notes No. 50, p. 1-7

  6. Soil moisture depletion in three lodgepole pine stands in northeastern Oregon.

    A 1-year study in the Blue Mountains of northeastern Oregon indicates that substantial amounts of soil moisture are consumed during the growing season in lodgepole pine stands. Dual purposes of the study were to estimate the quantities of water that can be stored in basalt-pumice soils typical of the Blue Mountains, and to determine the rate and amount of moisture...

    Author(s):
    Daniel M. Bishop
    Year:
    1961
    Keywords:
    Source:
    PNW Old Series Research Note No. 213, p. 1-2

  7. Taper tables for western hemlock.

    In 1947 the West Coast Forestry procedures Committee recommended several mensuration projects, one of which called for the construction of taper tables for Western hemlock. In response the present tables were prepared. Basic data for these tables consist of measurements of 912 trees taken a number of years ago by members of the Pacific Northwest Forest & Range...

    Author(s):
    Floyd A. Johnson; Wilbur Engstrom
    Year:
    1949
    Keywords:
    Source:
    PNW Old Series Research Notes No. 51, p. 1-5

  8. Veneer cutting and drying properties of Pacific madrone

    “Pacific madrone (Arbutus menziesii Pursh) is a moderate-sized hardwood tree found in the Pacific coastal country from British Columbia to southern California. In California it also grows in the western Sierra Mountains below 4,000 feet elevation. The tree is also known as madrono and madrona. It is locally used for fuelwood, fence posts, charcoal, and to a minor...

    Author(s):
    Year:
    1965
    Keywords:
    Veneers, cutting, drying, fuelwood, fence posts, charcoal, lumber, warping, Pacific Coast, madrono, madrona, collapse
    Source:
    Research note FPL no. 094. Madison, WI : USDA, Forest Service, Forest Products Laboratory. 7 pages.

  9. Standard error of estimated average timber volume per acre under point sampling when trees are measured for volume on a subsample of all points.

    This report assumes a knowledge of the principles of point sampling as described by Grosenbaugh, Bell and Alexander, and others.

    Whenever trees are counted at every point in a sample of points (large sample) and measured for volume at a portion (small sample) of these points, the sampling design could be called ratio double sampling. If the large...

    Author(s):
    Floyd A. Johnson
    Year:
    1961
    Keywords:
    Source:
    PNW Old Series Research Notes No. 201, p. 1-6

  10. Minimum weight structural sandwich

    This note presents theoretical analyses for determination of dimensions of structural sandwich of minimum weight that will have certain stiffness and load-carrying capabilities. Included is a brief discussion of the resultant minimum weight configurations.

    Author(s):
    Edward W. Kuenzi
    Year:
    1965
    Keywords:
    Loads, panels, theoretical analysis, stiffness, load carrying, cores, edge load, bending moment
    Source:
    Research note FPL no. 086, rev. 1965. Madison, WI : USDA, Forest Service, Forest Products Laboratory. 14 pages.

  11. Treatment of kraft paperboards and a kraft pulp with acrylonitrile

    Acrylonitrile (CH 2 = CH -CN) was reacted with unbleached southern pine kraft linerboard and bleached southern pine kraft cardstock to determine the effect of this treatment on compressive strength and dimensional stability. A sweetgum kraft pulp was treated similarly before and after bleaching and the paper-making qualities ,of the treated pulps were evaluated. The...

    Author(s):
    R. A. Horn; F. A. Simmonds
    Year:
    1965
    Keywords:
    Paperboards, physical properties, kraft paper, pulps, weather resistance, dimensional stability, stiffness, paper properties, pulp properties
    Source:
    Research note FPL no. 083. Madison, WI : USDA, Forest Service, Forest Products Laboratory. 11 pages.

  12. Wood fuel preparation

    This report gives information on the preparation of wood fuel from wood residues and other wood raw materials. Types of wood fuel discussed are cordwood, stovewood, slabwood, kindling, chips, hogged fuel, sawdust and shavings, bark, charcoal, alcohol, and briquets. Related information is given on types of machinery for preparing wood fuel and on possible markets for...

    Author(s):
    L. H. Reineke
    Year:
    1965
    Keywords:
    Wood chips, sawdust, bark, charcoal, alcohols, wood residues, fuelwood, briquettes, corewood, stovewood, slabwood, kindling, hogged fuel, shavings
    Source:
    Research note FPL no. 090. Madison, WI : USDA, Forest Service, Forest Products Laboratory. 14 pages.

  13. Dynamic tension testing equipment for paperboard and corrugated fiberboard

    The objective of this work was to develop a method, the testing equipment, and the instrumentation with which dynamic stress-strain information may be obtained for paperboards and built-up corrugated fiberboards as used in corrugated fiberboard containers. Much information is available on the properties of these materials when subjected to static or low rates of...

    Author(s):
    W. D. Godshall
    Year:
    1965
    Keywords:
    Tension, testing, paperboard, fiberboards, stresses, strain, containers, loads, mechanical properties, stacking, impact, shipping, rate of loading
    Source:
    Research note FPL no. 081. Madison, WI : USDA, Forest Service, Forest Products Laboratory. 25 pages.

  14. Preservative treatment of wood for farm use

    With all the favorable properties that contribute to its wide use in farming, wood nevertheless needs to be used intelligently, and protected from certain natural enemies. For example, while some species of wood are naturally resistant to attack by decay fungi and harmful insects, most species lack adequate resistance when exposed to attack, This is not serious when...

    Author(s):
    J. Oscar Blew
    Year:
    1965
    Keywords:
    Farms, fuels, tools, agriculture, decay, preservatives, shelter, termites, oilborne preservatives, waterborne salts
    Source:
    Research note FPL no. 085. Madison, WI : USDA, Forest Service, Forest Products Laboratory. 12 pages.

  15. Insulating board, hardboard, and other structural fiberboards

    The wood-base fiber panel materials are a part of the rapidly evolving technology based on converting lignocellulose to fiber and reconstituting the fiber into large sheets and panels. While some equipment and techniques used are the same as for producing paper, there are enough differences in techniques used and other requirements for manufacture that a separate...

    Author(s):
    W. C. Lewis; S. L. Schwartz
    Year:
    1965
    Keywords:
    Fiberboards, hardboard, wallboard, raw materials, fiber plants, physical properties, waste paper, laminated paperboard, insulution board
    Source:
    Research note FPL no. 077. Madison, WI : USDA, Forest Service, Forest Products Laboratory. 13, [6] pages.

  16. Artificial light sources differ in effect on birch seedling growth

    The use of artificial lights to grow tree seedlings for research and even for commercial uses is becoming common. With this has come an increasing awareness that not all types of artificial lights produce the same results (2, 3, 5). The presence or absence of particular wavelengths in the light source may cause large differences in height growth and morphological...

    Author(s):
    David A. Marquis
    Year:
    1965
    Keywords:
    Source:
    Research Note NE-35. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 1-6

  17. Proceedings of the Symposium on Needs for Nondestructive Testing in the Forest Products Industries

    The purpose of this meeting was to bring together about 30 representatives of the various forest products industries and a few affiliated research and educational institutions to discuss and define industry needs for nondestructive testing. The necessity for such a meeting was made clear in the Symposium on Nondestructive Testing of Wood held at this Laboratory in...

    Author(s):
    Year:
    1965
    Keywords:
    Non-destructive testing, forest products industries, wood products, wood properties, stiffness, glue boards
    Source:
    Research note FPL no. 080. Madison, WI : USDA, Forest Service, Forest Products Laboratory. 96 pages

  18. How to determine seasoning degrade losses in sawmill lumberyards

    Sawmill operators generally recognize the problem of defects due to air-drying hardwood lumber, but they often fail to realize how much these seasoning losses cost in money, time, and wasted lumber.

    Author(s):
    Donald G. Cuppett
    Year:
    1965
    Keywords:
    Source:
    Research Note NE-32. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 1-7

  19. Atlantic white-cedar being eliminated by excessive animal damage in south Jersey

    Atlantic white-cedar, which grows in the swamps of the New Jersey Pine Region, is a prized timber species. Most areas now growing white-cedar have been clearcut 4 or 5 times since 1700. In contrast, the associated swamp hardwoods-red maple, blackgum, and sweetbay-rarely produce wood that is valuable enough to harvest.

    Author(s):
    S. Little; H. A. Somes
    Year:
    1965
    Keywords:
    Source:
    Research Note NE-33. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 1-3

  20. Pattern of defect associated with stem stubs on northern hardwoods

    Decay and discoloration are the principal defects that reduce quality of northern hardwoods in New England. We need to know how to minimize these defects in young growing stock, and how to recognize them in merchantable trees. To determine accurately the amount of internal defect in trees, we must know the quantitative relationships between external signs on stems and...

    Author(s):
    Alex L. Shigo
    Year:
    1965
    Keywords:
    Source:
    Research Note NE-34. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 1-4

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