Life Sciences Commons^™

The Transportation Of Logs On Sleds, Alexander Michael Koroleff, Ralph C. Bryant

Yale School of the Environment Bulletin Series

Heavy sleds, designed to transport timber from the forest to water courses down which it is floated or to haul it to mill or market, have been perfected chiefly in the United States and Canada. The importance of this method is indicated by the fact that it is used in transporting approximately 90 per cent of the annual log input of New England and New York, 80 per cent of that of the Lake States, and 100 per cent of that of Alaska and of Canada, exclusive of British Columbia.

The credit for the development of sled-hauling methods in the …

Aspen In The Central Rocky Mountain Region, Frederick S. Baker

Aspen Bibliography

The detailed studies reported in this bulletin were carried out chiefly on the Ephraim Canyon watershed of the Manti National Forest in central Utah.

Nursery Investigations With Special Reference To Damping-Off, J W. Toumey, T T. Li

Yale School of the Environment Bulletin Series

The object of this investigation is therefore fourfold: 1. To determine an effective means of control of damping-off in the School of Forestry Nursery. 2. To determine the effects of different soil sanitation agents on the germination and later growth of coniferous stock. 3. To determine the effects of different sanitation agents on the germination and growth of weeds. 4. To determine the effects of different sanitation agents on the physical characteristics of the soil.

Hemlock: Its Place In The Silviculture Of The Southern New England Forest, Perry H. Merrill, Ralph C. Hawley

Yale School of the Environment Bulletin Series

Eastern hemlock (Tsuga Canadensis) has been considered in the past of negligible value as a timber tree in comparison with its associates. This idea persists in spite of the fact that either virgin or second growth hemlock of merchantable size is readily salable for a variety of products.

Some Effects Of Cover Over Coniferous Seedbeds In Southern New England, James W. Toumey, Ernest J. Neethling

Yale School of the Environment Bulletin Series

The object of the study as at first conceived was to secure experimental data under the climatic conditions of southern Connecticut: 1. On the effect of shade as compared with full light on the time required for germination, and on germination values in representative conifers, and on survival and growth during the first season. 2. On the effect of mulch as compared with exposed soil on the time required for germination, and on germination values in representative conifers, and on survival and growth during the first season.

Cocobolo, Samuel J. Record, George A. Garratt

Yale School of the Environment Bulletin Series

Cocobolo is a valuable timber of commerce that has been in use in this country, particularly for handles of cutlery, for more than fifty years. It is produced by certain species of Dalbergia indigenous to Central America and southwestern Mexico. The present commercial sources are Panama, Costa Rica, and Nicaragua.

A Progress Report Of The Results Secured In Treating Pure White Pine Stands On Experimental Plots At Keene, New Hampshire., Ralph C. Hawley

Yale School of the Environment Bulletin Series

In October, 1905, nineteen permanent sample plots were established in the white pine type near Keene, New Hampshire, by the United States Forest Service in cooperation with the Faulkner and Colony Manufacturing Company on lands owned by the latter. The plots were remeasured in 1909 and again in 1915 by representatives of the United States Forest Service. After the 1915 measurement the plots were turned over to the Yale School of Forestry. In September, 1920, the plots were remeasured for the third time, three additional plots were established and six of the original plots were discontinued. Fifteen years have elapsed …

Lignum-Vitae: A Study Of The Woods Of The Zygophyllaceae With Reference To The True Lignum-Vitae Of Commerce--Its Sources, Properties, Uses, And Substitutes, Samuel J. Record

Yale School of the Environment Bulletin Series

The true lignum-vitae of commerce belongs to the family Zygophyllaceae, of which only three genera, namely, Guaiacum, Porlieria, and Bulnesia, have representatives of tree size, and these are confined to the tropical and sub-tropical regions of the Western Hemisphere. Porlieria is of no commerical importance.

The Den: A Preliminary Report, With Map, Of A Tract Of Woodland Given To The School By Mr. And Mrs. Winthrop Perry., James W. Toumey, Ralph C. Hawley

Yale School of the Environment Bulletin Series

In the autumn of 1918, through gift of Mr. and Mrs. Winthrop Perry, the School of Forestry came into possession of a number of closely connected parcels or woodland comprising over 1,300 acres in Farifield County Connecticut.

The purpose of the donors and conditions under which the gift was made are clearly stated....

Observations On Cytospora Chrysosperma In The Northeast, E.E. Hubert

Aspen Bibliography

The weather conditions during the unusually dry summers of 1917, 1918, and 1919 were influential factors in the widespread and abundant appearance of Cytospora chrysosperma (Pers.) Fr. upon certain forest, shade and ornamental trees in the Northwest.

Notes On Some Diseases Of Aspen, Carl Hartley, Glenn G. Hahn

Aspen Bibliography

No abstract provided.

Effect Of Grazing Upon Aspen Reproduction, Arthur W. Sampson

Aspen Bibliography

It is desirable that on lands bearing a stand of aspen (Populus tremuloides)¹ a proper balance be maintained between timber production and grazing.

Climate And Plant Growth In Certain Vegetative Associations, Arthur W. Sampson

Aspen Bibliography

The relation of climate to the growth and development of vegetation is of profound importance in both practical and experimental agriculture. It is extremely useful to know the cause of successful growth and establishment, or of partial success or failure, of various species in different plant associations and under widely contrasted climatic conditions. The climatic requirements of various plant types are largely responsible for the results obtained in the case of experimental seedings and plantings of most species. Once the adverse climatic factors are definitely known, failures with plants may be largely avoided by the judicious selection of sites or …

The Story Of Aspen, Enos Mills

Aspen Bibliography

No abstract provided.

Further Studies In The Ecotone Between Prairie And Woodland, R. J. Pool, J. E. Weaver, F. C. Jean

Papers from the University Studies series (University of Nebraska)

A series of intensive investigations of the ecological features of the tension zone between prairie and woodland in the Mississippi valley was begun by Weaver and Thiel in 1915. These studies were continued for two seasons in Minnesota and were also extended to the prairies of eastern Nebraska in 1916. These investigations represent the first attempt to attack the prairie-forest problem on a comprehensive scale by means of the quantitative methods of modern ecology. Some of the results secured from these studies have been published as the first paper of a series planned to deal with critical investigations in the …

Aspen As A Permanent Forest Type, James M. Fetherolf

Aspen Bibliography

In an article on the "Stability of Aspen as a Type," published in the January, 1916, issue of the Proceedings of the Society, the author seems to infer that all aspen is temporary as a type, but refers to the prevalence of a different view in District 4 from that held by himself. In presenting this other view, I intend to bring out the more permanent features of aspen as a type. The importance of a clear understanding regarding this from the management and forestation standpoints is admittedly great. Any information that may be supplied or stimulus added to research …

A Study Of The Vegetation Of Southeastern Washington And Adjacent Idaho, J. E. Weaver

Papers from the University Studies series (University of Nebraska)

Noone at all botanically inclined can travel through southeastern Washington without being impressed with the marked changes which a distance of only a few miles may show in the vegetation. Traveling eastward from a point fifty miles west of the Idaho state line, one passes from a region of scab-land sagebrush through one of rolling hills covered with bunch-grasses. Upon steadily ascending the great Columbia Plateau, the 'bunchgrasses give way to well developed prairies, and these in turn, near the Idaho line, to forests of yellow pine, Douglas fir, white fir, tamarack, and cedar. Or starting from Spokane in the …

The Keene Forest: A Preliminary Report, J. W. Toumey, Ralph C. Hawley

Yale School of the Environment Bulletin Series

In 1913 the Yale School of Forestry came into possession of certain parcels of land located near Keene, New Hampshire. This land amounting to 629.4 acres was presented to the School as a nucleus for a school forest to be used for purposes of instruction and research. Subsequently in March, 1915, additional lots comprising 270.9 acres were purchased with funds contributed by the original donor. The present area totals 900.3 acres and is know as the "Keene Forest."

Ecological Investigations Upon The Germination And Early Growth Of Forest Trees, Richard H. Boerker

Papers from the University Studies series (University of Nebraska)

Briefly stated the purpose of the present investigation is to inquire into the effect of the more important habitat and seed factors upon the germination and early development of certain American forest trees in control cultures in the greenhouse for the purpose of obtaining data that may be used in the ~ilvicultural management of these species.

Prefatory Note 1 / Preliminary Considerations 7 / Historical 7 / Classification and Resume of Habitat Factors 11 / The Germination Process 15 / Method of Attacking Problem at Hand 19/ Methods and Apparatus Used 2 1/ The Control of Habitat Factors 24 / …

The Stability Of Aspen As A Type, Arthur W. Sampson

Aspen Bibliography

No abstract provided.

Effects Of Varying Certain Cooking Conditions In Producing Soda Pulp From Aspen, Henry E. Surface

Aspen Bibliography

No abstract provided.

A Working Plan For The Woodlands Of The New Haven Water Company; Prepared After Five Years Of Forest Practice, 1908 To 1912, Ralph C. Hawley

Yale School of the Environment Bulletin Series

Soon after the establishment of the Yale Forest School in 1900, the necessity developed for finding forest lands near the city of NewHaven upon which to conduct field work. It was found that many of the most accessible and best timbered tracts were owned by the New Haven Water Company....about 250 acres near the Maltby Lakes were placed under the management of the Yale Forest School. ...a written plan is desirable. The plan is divided into two parts: the first, descriptive of present conditions and passt accomplishments; the second, treating of the policy to be pursued.

Prolonging The Cut Of Southern Pine Part I. Possibilities Of A Second Cut; Part Ii. Close Utilization Of Timber, Herman H. Chapman, Ralph C. Bryant

Yale School of the Environment Bulletin Series

Part I - Since 1907 the Yale Forest School has conducted the field workand instruction of the Senior class in the spring term in coopera-tion with lumber companies located in the southern states. Thecompanies which have extended this cooperation are:
1907, Missouri Lumber and Mining Co., Grandin, Missouri.1908, Kaul Lumber Co., Hollins, Alabama.1909, Thompson Brothers Lumber Co., Doucette, Texas.1910, Louisiana Central Lumber Co., Clarks, Louisiana.1911, Thompson Brothers Lumber Co., Trinity, Texas.
191~, Crossett Lumber Co., Crossett, Arkansas.

Part II - The lack of close utilization of yellow pine timber is apparenton many operations in the South. In the following discussionsome …

Thesis On Log Haulers, Vaughan Jones

Maine History Documents

It has always been the aim of man to procure some new and more efficient means of doing a certain work. This holds as true in lumbering as in anything else; though perhaps no branch of the very important industry of obtaining a manufacturing lumber has received less attention than the cutting and hauling of the raw material.

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

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

Nebraskiana Publications

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 …

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.

USDA Forest Service / UNL 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

Papers from the University Studies series (University of Nebraska)

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 …