Progress in State forestry has been stimulated by Federal assistance since 1924 when Congress passed the Clarke-McNary Act authorizing cooperation with the States in forest-fire control measures with a view to the protection of forest and water resources and to the continuous production of timber on lands chiefly suitable for...
A broad definition of forestry would include the study of trees and forests and their use by people. Modern, "science-based" forestry began in the nineteenth century when Europeans looked for specialists who could address questions on wood supply and extraction both at home and in their colonies. The threat of...
A broad definition of forestry would be the study of trees, forests, and their use by people. Modern science-based forestry is thought to have begun in the nineteenth century when Europeans looked to specialists to address questions of wood supply and extraction both in their forests at home and in...
A broad definition of forestry would include the study of trees and forests and their use by people. Modern or science-based forestry began in the nineteenth century when Europeans looked to specialists to address questions of wood supply and its extraction from both their forests at home and their colonies....
A broad definition of forestry would include the study of trees, forests, and the habitat they provide as well as their use by people. Modern “science-based” forestry began in the nineteenth century, when Europeans looked for specialists who could address questions on wood supply and extraction both at home and...
A broad definition of forestry would include the study of trees, forests, and the habitat they provide as well as their use by people. Modern “science-based” forestry began in the nineteenth century, when Europeans looked for specialists who could address questions on wood supply and extraction both at home and...
The so-called powder-post injury to seasoned wood has attracted
much attention in America, and especially in Europe for centuries,
and has been the subject of published articles in many languages.
This peculiar injury seems to be on the increase in the United States
and numerous requests from a number of...
The Tertiary geologic evolution of the Oregon and Washington continental margin was molded by episodic periods of convergence between the Pacific oceanic plates and the North American plate. This margin is the site of a deep basin that is floored by Paleocene to lower Eocene oceanic crust and contains more...
Published January 1914. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published September 1914. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published July 1913. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
A major challenge for biodiversity conservation is to mitigate the effects of future environmental change, such as land use, in important areas for biodiversity conservation. In the United States, recent conservation efforts by The Nature Conservancy and partners have identified and mapped the nation's Areas of Biodiversity Significance (ABS), representing...
Recent years have witnessed extensive destruction of forest growth,
particularly of pine, spruce, and chestnut, in portions of the United
States east of the Rocky Mountains. This injury has been very
generally attributed to insects, and there is evidence that certain
wood and bark-boring species have largely contributed to the...
Published 1912. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published 1913. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Cell division in a heat synchronized Tetrahymena pyriformis
(GL-I) cell can be delayed if the cell is exposed to X-irradiation (300
kVp, 20 mA, HVL = 0. 9 mm Cu, 25 R/ sec) prior to a critical time
after the end of the synchronizing treatment (EST). At the critical
time,...