Exercises in wood-working, with a short treatise on wood; (1890)
Sickels, Ivin. [from old catalog] · New York, D. Appeton and company · leaf 17
sporting orstoring up nourishment, and give rise to what is called thesap-wood. The rings inside of the sap-wood serve only forsupport, and make up the heart-wood of the tree. In the palm, new bundles arise, placed irregularly in thesoft tissue or pith, and by tracing these bundles throughoutthe… … Fig. 2.—Diagram of a palm-stem. A. cross-section ; 2J, longitudinal section ; a, a. softtissue ; b, 6, vessels or tubes with pitted sides : c, c, wood-cells or fibers ; d, d, vesselswith spiral markings. (After Carpenter.; In the oak we have the same appearance regarding theannual rings and…
Woodwork (Manual training) · Wood
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