Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 922
ir linear distances, for greater perspicuity. Fig. 3928, which represents the horizontal or transverse section of a young tree or a branch, showsthe arrangement of the annual rings around the centre or pith; these rings are surrounded by an ex-terior covering, consisting also of several thinner… … yiG WOODS, VARIETIES OF. Figs. 3929 and .59.30 are vertical sections of an older piece of beech-wood. Fig. 3S29 is cut tlirougha plane, such as from a to a, in which the edges of tlie annual rings appear as tolerablj parallel fibresrunning in one direction, or lengthways through the stem; the few…
Mechanical engineering · Mechanics · Engineering
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