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Excerpt from Lumber and Its Uses In addition to the cells whose length is paral lel to the trunk of the tree, wood also contains other layers of cells of a different character whose length is at right angles to the trunk of the tree. These cells occur in thin sheets radiat ing from the bark toward the pith, and form what are called the pith rays or medullary rays of wood. They are best seen on a quartered section, and are what gives the beautiful, flaky appearance to quartered oak and sycamore. The pith rays are less conspicuous in beech, maple, and birch, and are scarcely or not at all visible to the naked eye in the pines and many other woods. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

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9781331906292

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