Bulletin (United States. Division of Forestry)

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U.S. Government Printing Office, 1899
 

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Página 9 - Pennsylvania, mutually agree together as follows: 1. The Department of Agriculture, in pursuance of investigations in forestry, and in order to disseminate a knowledge of improved ways of handling forest land.,, shall, after personal study on the ground by its agent or agents, prepare a.
Página 10 - ... 5. The Department of Agriculture shall have the right to publish and distribute the said plan and its results for the information of farmers and others whom it may concern. 6. This agreement may be dissolved by either party upon ten days
Página 9 - Place, and in the northwest portion of the same. 2. The said plan shall be prepared for the purpose of promoting and increasing the present value and usefulness of the said land to its owner, and to perpetuate and improve the forest upon it.
Página 10 - ... increasing the present value and usefulness of the said land to its owner and to perpetuate and improve the forest upon it. 3. Upon the completion of the said plan and its acceptance by the said John Doe, the Geological Survey shall supervise the execution thereof, so far as it may deem necessary. 4. The cost of executing the provisions of this agreement shall be paid as follows: (a) The salaries of all employes of the Geological Survey engaged in fulfilling this agreement shall be paid by the...
Página 22 - ... tend to be produced on the same classes of situation and soil in a specified region. There will be variations within the type, but the characteristic features of the forest will remain constant, that is the predominant species, density, habit of trees, reproduction, character of undergrowth, etc. If a portion of the forest is destroyed by fire, wind or otherwise, the type may for the time being be changed, but if left undisturbed it will revert to the original form, provided the condition of...
Página 10 - The working plan above mentioned, being now completed, is accepted, and will be carried out under the conditions and during the validity of the above agreeme.nt (Signed...
Página 22 - If nature is left undisturbed, the same type of forest will tend to be produced on the same classes of situation and soil in a specified region. There will be variations within the type, but the characteristic features of the forest will remain constant, that is, the predominant species, density, habit of trees, reproduction, character of undergrowth, etc. If a portion of the forest is destroyed by fire, wind or otherwise, the type may for the time being be changed, but if left undisturbed, it will...
Página 72 - In order to understand the reasons for this, it is necessary to visualize the sweeping changes which have taken place in retail food merchandising during the past few years.
Página 3 - Practical Forestry in the Adirondacks. By Henry S. Graves, Superintendent of Working Plans. Pp. 85, pis.
Página 36 - ... were not directly under the shade of some other tree. The largest quantity and best quality of seed is produced in the virgin forest by trees from 10 to 18 inches in diameter at breastheight. In other words, spruce in the forest begins to bear seed when the crown succeeds in reaching the light, and begins to bear heavily when the top of the crown thickens. At first a few cones are borne near the main stem below the last year's growth, and as the crown thickens and spreads the cones are borne...

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