Exercises in wood-working, with a short treatise on wood; (1890)
Sickels, Ivin. [from old catalog] · New York, D. Appeton and company · leaf 30
es, and boards contain-ing them may be used wherever strengthor finish is not required. Sap-wood.—The edges of boards fre-quently retain a portion of the sap-wood, which must not beplaced in any permanent structure, because of its softnessand tendency to induce decay. Resin-pockets are spaces… … Fig o, fast MEASURE AND VALUE OF WOOD. 29 turpentine, even if the surface lias been painted or var-nished. Decay.—Of all the defects in wood, decay or rot is at oncethe most prevalent and disastrous to the strength and use-fulness of the material, and, when begun, will continue untilthe whole of…
Woodwork (Manual training) · Wood
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