Author： Harper V. L.
Publisher： Society of American Foresters
ISSN： 0022-1201
Source： Journal of Forestry, Vol.29, Iss.2, 1931-02, pp. : 225-232
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Abstract
Now that the American naval stores industry must derive its raw material from relatively small second-growth trees, it finds the traditional methods of chipping the large old-growth trees unsatisfactory. The author describes experiments on the application of the French system of chipping. The results over a two-year period indicate some superiority of the French system over that of the American for small trees particularly as to the yield of gum and the rate of healing the wounds.
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