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Articles 11491 - 11502 of 11502

Full-Text Articles in Forest Sciences

A Classification For Forestry Literature, Faculty Of The Yale Forest School Feb 1912

A Classification For Forestry Literature, Faculty Of The Yale Forest School

Yale School of the Environment Bulletin Series

The following classification for forestry literature has been prepared by the Faculty of the Yale Forest School for use in its library. It is published to supply the demand for a simple and comprehensive classification that is adapted to any library system. The work was begun about one year ago and included a study of all available data on the subject. A tentative outline was submitted to prominent members of the profession from whom helpful suggestions were received.

The subject has been divided into nine parts of approximately equal importance. The secondary divisions also have been limited to nine and …


The Aspens: Their Growth And Management, William Grant Weigle, Earl Hazeltine Frothingham Jan 1911

The Aspens: Their Growth And Management, William Grant Weigle, Earl Hazeltine Frothingham

Aspen Bibliography

The aspens, or "popple," as they are often collectively termed, occupy a peculiar position in the forests of North America. Growing up rapidly and in great abundance over areas which have been deforested, usually by fire, they attain only a small size, produce a soft, weak wood, extremely valuable for a limited number of uses, and die at a relatively early age.


Fearsome Creatures Of The Lumberwoods: With A Few Desert And Mountain Beasts, William T. Cox, Coert Du Bois Jan 1910

Fearsome Creatures Of The Lumberwoods: With A Few Desert And Mountain Beasts, William T. Cox, Coert Du Bois

Nebraskiana Publications: Resources and Materials on the 37th State

Every lumber region has its lore. Thrilling tales of adventure are told in camp wherever the logger has entered the wilderness. The lumber jack is an imaginative being, and a story loses none of its interest as it is carried and repeated from one camp to another. Stories which I know to have originated on the Penobscot and the Kennebec are told, somewhat strengthened and improved, in the redwood camps of Humboldt Bay. Yarns originating among the river drivers of the Ottawa, the St. Croix, and the upper Mississippi are respun to groups of listening loggers on Vancouver Island. But …


Conservation Of The Future Lumber Supply, T. B. Walker Jan 1910

Conservation Of The Future Lumber Supply, T. B. Walker

Journal of the Minnesota Academy of Science

No abstract provided.


Practical Information On The Scolytid Beetles On North American Forests I. Barkbeetles Of The Genus Dendroctonus, Andrew Delmar Hopkins Jan 1909

Practical Information On The Scolytid Beetles On North American Forests I. Barkbeetles Of The Genus Dendroctonus, Andrew Delmar Hopkins

The Bark Beetles, Fuels, and Fire Bibliography

During the writer's investigations of extensive insect depredations in the forests of West Virginia, from 1890 to 1902, he was forcibly impressed with the importance of the forest-insect problem in connection with any future efforts toward the successful management of the forests of this country, and was thus led to give special attention to the subject. It was soon realized that among the principal groups of insect enemies of forest trees the scolytid bark and wood boring beetles must occupy first rank, both in economic importance and systematic interest. Subsequent investigations in West Virginia, in connection with the work of …


What Forestry Has Done, Treadwell Cleaveland Jr. Jan 1908

What Forestry Has Done, Treadwell Cleaveland Jr.

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

Many people in this country think that forestry had never been tried until the government began to practice it upon the national forests. Yet forestry is practiced by every civilized country in the world, except China and Turkey. It gets results which can be got in no other way, and which are necessary to the general welfare. Forestry is not a new thing. It was discussed two thousand years ago, and it has been studied and applied with increasing thoroughness ever since.

The principles of forestry are everywhere the same. They rest on natural laws, which are at work everywhere …


Plant Migration Studies: Forest Trees, Charles E. Bessey Jan 1905

Plant Migration Studies: Forest Trees, Charles E. Bessey

University Studies (University of Nebraska) (1888–1984)

It is a familiar fact that new species appear from time to time among the native plants of a region. Such newcomers turn out on examination to be new only in the sense that they have not previously lived in the region, and in every instance these new plants are found to have come from other regions where they had existed for a longer or shorter period of time. In some cases the · new species remain for a time and then disappear, or at least become inconspicuous, but more commonly they crowd in among the former plants and become …


The Distribution Of The Native Forest Trees Of Nebraska, Charles E. Bessey, Robert Bolin , Depositor Jan 1904

The Distribution Of The Native Forest Trees Of Nebraska, Charles E. Bessey, Robert Bolin , Depositor

School of Biological Sciences: Faculty Publications

This document lists 67 trees identified by Dr Bessey with the help of others around the state. It includes the common and scientific names as well brief comment about each tree. Small maps are provided showing the distribution of each tree.


Notes On The Forest Region Of Northern Idaho, John B. Leiberg Jan 1886

Notes On The Forest Region Of Northern Idaho, John B. Leiberg

Journal of the Minnesota Academy of Science

No abstract provided.


The Utilization Of Sawdust, James A. Dodge Dec 1882

The Utilization Of Sawdust, James A. Dodge

Journal of the Minnesota Academy of Science

No abstract provided.


Report Of The Commissioner Of Patents For The Year 1861 Agriculture, Department Of Library Special Collections Dec 1860

Report Of The Commissioner Of Patents For The Year 1861 Agriculture, Department Of Library Special Collections

Research Collections

  • - Revenue
  • - Factory and trade waste
  • - Inventions
  • - Patents
  • - Inventors
  • - Financial statements


A Comparison Of The Deinkability Of Certain Printing Inks, Jacob Van Giessen May 1856

A Comparison Of The Deinkability Of Certain Printing Inks, Jacob Van Giessen

Paper Engineering Senior Theses

Printing inks differ in their composition and in their ability to be removed from paper in the deinking process. I was the purpose of this research work to make a comparison of this deinkability, for common printing inks.

In this experimentation, five inks were compared. These were a linseed oil base ink, a mineral oil base ink, a moisture set ink, a alkyd base in and a rubber base ink. Deinking was done using a standard deinking formula and varying only the concentration of the deinking agent.

The results show a marked difference in concentrations of deinking agent necessary for …