. A practical course in botany, with especial reference to its bearings on agriculture, economics, and sanitation. Botany. 126 PRACTICAL COURSE IN BOTANY ones, or the reforestation of tracts from which the timber has been destroyed. Forests may be either -pure, that is, com- posed mainly of one kind of tree, as a pine or a fir wood; or mixed, being made up of a vari- ety of different growths, as are most of our com- mon hardwood forests. 140. Enemies of the forest. — The first step in the preservation of our forests is to know the dangers to be guarded against. The chief of these are: (1) fire
. A practical course in botany, with especial reference to its bearings on agriculture, economics, and sanitation. Botany. 126 PRACTICAL COURSE IN BOTANY ones, or the reforestation of tracts from which the timber has been destroyed. Forests may be either -pure, that is, com- posed mainly of one kind of tree, as a pine or a fir wood; or mixed, being made up of a vari- ety of different growths, as are most of our com- mon hardwood forests. 140. Enemies of the forest. — The first step in the preservation of our forests is to know the dangers to be guarded against. The chief of these are: (1) fires; (2) the igno- rance or recklessness of man in cutting for commercial purposes; (3) fungi; (4) injurious insects; (5) sheep, hogs, and other animals that eat the seeds and the young, tender growth. 141. How to protect the forests. — The annual de- struction of forests by fires probably exceeds that from all other causes combined. The only effectual safeguard against this danger is watch- fulness on the part of every- body. We can each one of us help in this work by at least being careful ourselves never to kindle a fire in the woods without taking every precaution against its Fig. 14lj. —Oyster fungus on Fig. 145. — After the forest 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 Andrews, Eliza Frances, b. 1840; Lloyd, Francis Ernest, 1868-1947. ed. New York, Cincinnati [etc. ] American book company
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