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    Author(s): Duncan Dunning
    Date: 1928
    Source: Journal of Forestry
    Publication Series: Scientific Journal (JRNL)
    PDF: Download Publication  (34.0 KB)


    A large number of foresters, forest entomologists and others are now making use of the increment borer to investigate the effects of cutting, fire damage and other factors on tree growth, or the relation between tree vigor and insect attacks, besides many other factors. The measurement of increment cores economically with consistent accuracy is usually the most difficult part of such work. A brief description of a simple instrument that has proved helpful in District 5 of the Forest Service may be found interesting

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    Dunning, Duncan. 1928. An instrument for measuring increment cores. Journal of Forestry. 23(2): 183-184.

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