. Wood; a manual of the natural history and industrial applications of the timbers of commerce. Wood; Timber. 8 OF WOOD IN GENERAL there is a central whitish mass, which on being magnified exhibits a comparatively wide-meshed structure, there are round this a ring of patches of a greyer, closer tissue. These grey patches may be observed to be roundish or slightly wedge-shaped in out- line, their longer diameter lying in one of the radii of the stem, and they are wider across their outer parts. They appear grey on account of the smaller diameter of their cells. Longitudinal sections show these


. Wood; a manual of the natural history and industrial applications of the timbers of commerce. Wood; Timber. 8 OF WOOD IN GENERAL there is a central whitish mass, which on being magnified exhibits a comparatively wide-meshed structure, there are round this a ring of patches of a greyer, closer tissue. These grey patches may be observed to be roundish or slightly wedge-shaped in out- line, their longer diameter lying in one of the radii of the stem, and they are wider across their outer parts. They appear grey on account of the smaller diameter of their cells. Longitudinal sections show these patches to be cross-sections of long strands or bundles of cells, narrower and more elongated than those around them. The central mass of tissue is tbd pith or medulla, and these strands are known as procambium or ~\. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Boulger, George Simonds, 1853-1922. London, E. Arnold


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Keywords: ., bookcentury1900, bookdecade1900, booksubjecttimb, booksubjectwood