. Bulletin. Forests and forestry -- United States. 10 A PRIMER OF FORESTRY. and take up from the soil water aud certain mineral sub- stances which the tree needs in its growth. Second, the trunk, stem, or bole, which supports the crown and sui3- idies it with mineral food and water from the roots. (See fig. 4.) Third, the crown itself, with its net- work of branches,l)uds, and leaves, in which all tliefood taken up by the tree from the soil and air is worked over and made ready to assist in the growth of the whole plant. (See figs. 5-7 and PL IV.) The crown has more to do with the life of the
. Bulletin. Forests and forestry -- United States. 10 A PRIMER OF FORESTRY. and take up from the soil water aud certain mineral sub- stances which the tree needs in its growth. Second, the trunk, stem, or bole, which supports the crown and sui3- idies it with mineral food and water from the roots. (See fig. 4.) Third, the crown itself, with its net- work of branches,l)uds, and leaves, in which all tliefood taken up by the tree from the soil and air is worked over and made ready to assist in the growth of the whole plant. (See figs. 5-7 and PL IV.) The crown has more to do with the life of the tree than its other parts, for the most important processes in the reproduction of th e tree and the digestion of its food take place in the crown. For this reason, and be- cause we can control its shape and size more easily and directly than that of _ the roots or trunk, the j crown is of special inter- ^r , „, ] 7. 1, , ^,. .,„ est to the forester. It is JbiG. 4.—iruiiks oi two Keu iirs. llie figure of a man between tbem gives an almOSt exclusi Vely with the idea of their great size, ^vhich, how- crOWUS that he haS tO deal ever, is not unusual. Olympic Forest . Pveserve, Washington. 1^ tending a Crop of trCCS. f '^%Mk. 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 United States. Division of Forestry. Washington : G. P. O.
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