Exercises in wood-working, with a short treatise on wood; (1890)
Sickels, Ivin. [from old catalog] · New York, D. Appeton and company · leaf 16
row older and larger, we find, in the pine,that new and branching bundles appear between the firstones, forming, during the season, a circle of bundles, whichconstitutes the first annual ring. This ring is interrupted byplates of tissue communicating between the pith, on the in-side of the ring,… … » i£ 3 h Fig. 1.—Diagram of a stem with a cambium layer. A, section cut across the bundles ; B,section in the direction of the bundles ; 1, 2, 3, first, second, and third annual rings ;a, a, pith ; 6, 6, pitted vessels ; c, c, wood-cells ; d, spiral vessels, found only in the firstannual ring ; e,…
Woodwork (Manual training) · Wood
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