. Bulletin (Pennsylvania Department of Forestry), no. 11. Forests and forestry. 14 6. By removing undesirable trees and replacing them with a better class of trees. 7. By establishing a proper proportion and a suitable distribu- tion of age classes. 8. By making every part of the forest accessible by means of roads, lanes, trails, paths, compartment lines, etc. 9. By making improvement cuttings. 10. By dividing the forest into working units (compartments) just as a farmer divides his farm into fields and the fields into patches. THE FORESTS AND FORESTRY The original forest was so modified by t
. Bulletin (Pennsylvania Department of Forestry), no. 11. Forests and forestry. 14 6. By removing undesirable trees and replacing them with a better class of trees. 7. By establishing a proper proportion and a suitable distribu- tion of age classes. 8. By making every part of the forest accessible by means of roads, lanes, trails, paths, compartment lines, etc. 9. By making improvement cuttings. 10. By dividing the forest into working units (compartments) just as a farmer divides his farm into fields and the fields into patches. THE FORESTS AND FORESTRY The original forest was so modified by the activity of man, or man working conjointly with natural agencies, that the sources of our future wood supply became a question of great importance. A gen- eral survey of the field showed that we were consuming wood faster than we were producing it. This unbalanced economic condition due to the unregulated condition of our forest gave birth to the sub- ject of forestry. Man's attitude toward the forest showed that he was a disturbing agent. Without him the forest of Pennsylvania would have remained practically undisturbed, indefinitely. Hence it might follow that the forest thrives best where there are no people, and consequently no forestry. Further, one often hears the state- ment: Formerly we had no forestry and plenty of wood; now we have forestry but no wood. This statement does not prove that for- estry is to be blamed for a deficiency in our wood supply, but it does prove that forestry is the child of necessity. This child of ne- cessity, which is at present just in its formative period, could never have been born if we had not been compelled to see that our timber resources were rapidly decreasing. Th word forestry to many may be new. The most enlightened may have a rather vague conception of its exact scope. It is often identified with the planting of individual trees, landscape work, and tree surgery. Forestry should be regarded as the rational treatment of our wood
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