Discussion of forestry's technical procedures highlights extractive, preservative, and reproductive methods.
A considerable amount of space has been devoted to a consideration of the desirability of establishing minimum instruction in forestry requirements for Junior membership in the Society. This is an important question and before it is finally settled much more space probably will have been devoted to its consideration. In the following paper, by Professor Heiberg, the technical procedures of forestry are divided into three well defined groups, namely: extractive forestry, preservative forestry, and reproductive forestry. The province and objectives of each of these groups is discussed in detail.
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S. O. Heiberg (1937) studied this question.
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