the forest, but to the men who use the forest. This is peculiarly true
of the practice of forestry in National and State Forests everywhere.
FOREST PRODUCTS:
Under this general subject, the forest student must acquaint himself,
through the microscope, with the minute anatomy of the woody stem of
coniferous and broadleaf trees, and the occurrence, form, structure, and
variability of the elements which make it up. He should become familiar
with the methods of classifying the economic woods of the United States,
both under the microscope and with the unassisted eye, and for this
purpose should know something of their color, gloss, grain, density,
odor, and resonance both as aids to identification and as to their
importance in giving value to the wood; the defects of timber; its
moisture content, density, shrinking, checking, warping; and the effect
of all these upon its uses.
The chemical composition of wood and of minor forest products, such as
tannins and dye stuffs, is important; the properties governing the fuel
value and the other values of wood must be studied, as well as the
methods of using these properties in the making of charcoal and wood
pulp, in wood distillation, the turpentine industry, in tanning and
dyeing, and in other industries.
A field of great importance is the relation between the physical
structure and the mechanical properties of wood. A student should inform
himself concerning the standard methods of testing the properties of
structural timber, by bending, compression, shearing, torsion, impact,
and the hardness and tension tests, with their relation to heat and
moisture, and the methods of seasoning, the use of preservatives, and
the effect of the rate of application of the load.
Woods vary as to their durability. It is important, therefore, to know
about the causes of decay, the decay-resisting power of various woods,
the relation of moisture content to durability, why the seasoning of
wood is effective, the theory and the commercial methods of wood
preservation, and its relation to the timber supply.
LUMBERING:
Lumbering the Forester should know more than a little about, as how to
organize lumber operations, the equipment and management of logging and
milling in various forest regions, the manufacture, seasoning, and
grading of the rough and finished lumber, cost keeping in a lumber
business, methods of sale, market requirements at home and abroad,
prices, the relation of th
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