A treatise on architecture and building construction (1899)
International Correspondence Schools · Scranton, The Colliery engineer co. · leaf 334
of the leaves growing together, such as treeferns. 9, The first division, or the exogenous method of develop-ment, is the one that furnishes the timber for the wood-worker. On examiningthe section of a youngoak tree, such as shownin Fig. 1, which is a mi-croscopic enlargementof a section of a stem… … ^de/a Fig. 1. 4 CARPENTRY. § 9 net-like fabric of cells, resembling a honeycomb; at b, themcdidlary sheath surrounds the pith and is composed ofspiral vessels and fiber ducts for the conveyance of the sap;this constitutes the inner layer of the first years growth; atc are the zvood cells, or fiber…
Architecture · Building
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