Forest Sciences Commons^™

The Comparative Permeability Of Woods To Liquids, Harvey D. Erickson

Journal of the Minnesota Academy of Science

No abstract provided.

The Influence Of Soil Profile Horizons On Root Distribution Of White Pine (Pinus Strobus), Harold J. Lutz, Joseph B. Ely Jr., Silas Little Jr.

Yale School of the Environment Bulletin Series

No abstract provided.

A Study Of Mahogany., Roy A. Lawrence

Electronic Theses and Dissertations

No abstract provided.

A Study Of The Native Trees Of Amador County, Guy V. Towsley

University of the Pacific Theses and Dissertations

The region covered by this study reaches from the valley floor of the San Joaquin-Sacramento Valley, with an altitude of about 150 feet, to the top of the Sierra Nevada Mountains, whose peaks, in Amador County, reach to more than 9000 feet. Mokelumne Peak has an altitude of 9371 feet. The north and south distance, across the county at Ione, is 22 miles, while at Cook's Station, it is barely 5 miles. Amador County has an area of about 600 square miles.

Thus, a study of trees in this county, gives a fairly representative cross-section picture of the Sierras at …

The Shelterbelt Project, J. M. Aikman

Journal of the Minnesota Academy of Science

No abstract provided.

Will Pine Or Aspen Dominate Minnesota Forests?, Hardy L. Shirley

Journal of the Minnesota Academy of Science

No abstract provided.

Drought Resistance Of Green Ash As Affected By Geographic Origin, L. J. Meuli

Journal of the Minnesota Academy of Science

No abstract provided.

Forests And Glaciers Of Southern Alaska, William S. Cooper

Journal of the Minnesota Academy of Science

No abstract provided.

Observations On Thinning And Management Of Eastern White Pine (Pinus Strobus Linnaeus) In Southern New Hampshire, Ralph C. Hawley

Yale School of the Environment Bulletin Series

In October, 1905, several permanent sample plots were 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 purpose of the investigation was to study some effects of thinnings and of partial (shelterwood) cuttings for establishing natural regeneration. The plots were remeasured in 1909 and again in 1915 by representatives of the United States Forest Service, but after the 1915 measurement they were turned over to the Yale School of Forestry.* In 1920, 1925, 1930, and 1935 the plots …

Factors Controlling Initial Establishment Of Western White Pine And Associated Species, Irvine T. Haig

Yale School of the Environment Bulletin Series

The principal object of the study was to determine the roles played by important physical factors of site, chiefly as these vary with overhead shade and hence are within the control of the silviculturist at the time of logging. No special effort was made to study the effect of biotic agents under natural conditions. Indeed, in order to insure as large a sample of seedlings as possible on which to follow losses caused by physical factors, biotic agents were discouraged wherever feasible. But as records of all mortality losses were kept by cause, some information was collected on the activity …

The Tympanis Canker Of Red Pine, John Raymond Hansbrough

Yale School of the Environment Bulletin Series

A new disease of red pine has recently been found in southern Connecticut, Rhode Island, eastern Massachusetts, western and central New York, northern New Jersey, eastern Pennsylvania, central Ohio, and southern Michigan. It is of serious consequence only on plantation-grown red pine, but it also occurs occasionally on eastern white pine. On the former host it is characterized by axially elongated, annual main-stem cankers which are always centered at the nodes. Infection takes place through adhering lateral dead branches and the growth of the fungus after it gains entrance to the stem.is usually very rapid-Le., cankers up to three feet …

Studies In The Development Of Tissue In The Stem And Leaf Of Pinus Edulis, Engelman, Eleanor Bartoszak

Bachelors’ Theses

Pinus edulis, Engelman commonly known as the two-leaved "Nut Pine", belongs to the genus Pinus of the tribe Abietineae which in turn is a member of the Pinnaceae family of the order Coniferales. The Coniferales constitute three-fourths of the present gymnosperms which comprise forty genera and approximately 350 species. The dominant conifers are the twenty-nine genera and approximately 245 species included
in the family Pinnaceae. In this family are found four tribes, Taxodineae, Cupressineae, Araucarineae, and Abietineae. This latter form includes nine genera and about 129 species.. The genera are Cedrus, found …

Bulletin No. 2: The Connecticut Arboretum At Connecticut College, New London, George S. Avery Jr., Katharine Matthies, Katharine Blunt, C B. Graves, Katherine Floyd

Bulletins

No abstract provided.

The Interrelationships Of Bark Beetles And Blue-Staining Fungi In Felled Norway Pine Timber, J. G. Leach, L. W. Orr, Clyde Christensen

Journal of the Minnesota Academy of Science

A study of two species of bark beetle (lps pini Say and I. grandicollis Eichh.) and the fungi associated with them has been made as the first part of a general investigation of the interrelations of insects and fungi in the deterioration of felled logs of Norway pine.

Artificial Pruning In Coniferous Plantations, Ralph C. Hawley, Robert T. Clapp

Yale School of the Environment Bulletin Series

The pruning practices here outlined should be applicable on the thousands of acres of coniferous plantations which have been established in southern New England and portions of New York, New Jersey, and Pennsylvania having similar forest conditions.

A Swedish-English Vocabulary For Foresters, Joshua Lee Deen, Adolph Burnett Benson, Matts Juhlin Dannfelt

Yale School of the Environment Bulletin Series

This little volume is the result of the growing interest in Swedish forestry in English-speaking countries.

Forest Fire Damage Studies In The Northeast--I. Bark-Beetles And Fire Damaged Hardwoods, Paul W. Stickel

The Bark Beetles, Fuels, and Fire Bibliography

In reporting the damage to trees scorched lightly at the base by fire the average fire warden and even the technically trained forester is given to stating that little harm has been done providing the tree crowns remain green. Such a statement is far from being correct, failing as it does to take into account the aftermath of insect and fungus damage which invariably follows even the lightest of surface fires. In the case reported herein, over 50 per cent of the fire-scorched hardwoods showed signs of the presence of ambrosia-beetles, whose work, even if the trees continue to live, …

Bulletin No. 1: The Connecticut Arboretum At Connecticut College, New London, Katharine Matthies

Bulletins

No abstract provided.

Ecological Relations In The Pitch Pine Plains Of Southern New Jersey, Harold J. Lutz

Yale School of the Environment Bulletin Series

An investigation was undertaken with the primary object of determining the factors responsible for the peculiar development of the vegetation in the Plains community. The conclusion ·is reached that the Plains areas are capable of supporting forest growth similar to that in the Pine Barrens. Inasmuch as the Plains owe their continued existence to repeated fires, it is obvious that effective fire protection is the first and most important step toward their rehabilitation.

Poplars, Principal Tree Willows And Walnuts Of The Rocky Mountain Region, George B. Sudworth

Aspen Bibliography

No abstract provided.

The European Pine Shoot Moth (Rhyacionia Buoliana Schiff.): With Special Reference To Its Occurrence In The Eli Whitney Forest, Roger B. Friend, Allen S. West Jr

Yale School of the Environment Bulletin Series

The European pine shoot moth has been recognized as a pest .in Europe for over a century. It was first discovered in the United States in 1914, since when it has become a serious enemy of red pine. The insect is becoming increasingly abundant in this country and is known to be present in Massachusetts, Rhode Island, Connecticut, New York, New Jersey, Pennsylvania, West Virginia, Illinois, Ohio, Michigan, possibly Florida, and in the provinces of Ontario and British .Columbia in Canada. Some fifteen species of pines susceptible to injury in varying degree have been reported as hosts .of this insect, …

Some Aspects Of An Early Expression Of Dominance In White Pine (Pinus Strobus L.), J Lee Deen

Yale School of the Environment Bulletin Series

A series of temporary plots was made for the purpose of observing and noting (1) the factors affecting an expression of dominance of white pine (Pinus strobus Linnaeus) and (2) the relationship between dominance and the development of white pine stands. Twenty natural stands and thirteen plantation stands were studied.

Selection Cuttings For The Small Forest Owner, Ralph C. Hawley, Allen W. Goodspeed

Yale School of the Environment Bulletin Series

The purpose of this publication is to indicate to owners of small forests methods of harvesting wood and timber and developing future timber crops which .are likely to prove more profitable than those followed in the past. Cutting practices here described have been applied for some years in the Eli Whitney Forest, New Haven, Conn., where forest areas in various stages of treatment can be ·seen.

The Transportation Of Wood In Chutes, Alexander M. Koroleff, Ralph Clement Bryant

Yale School of the Environment Bulletin Series

Artificial channels, known as chutes, in which logs and bolts may be transported down steep slopes by means of gravity, were devised several centuries ago in the mountainous regions of Europe and later were used by north American loggers, especially in New England, New York, and Pennsylvania. They operate most advantageously on grades that are far in excess of those on which wheeled vehicles or sleds can be used safely, and they are most serviceable for moving timber on terrain which is so steep or broken that the construction cost of suitable roads is prohibitive.

Trenched Plots Under Forest Canopies, James W. Toumey, Raymond Kienholz

Yale School of the Environment Bulletin Series

The relative importance of light and soil moisture in particular is better known than that of other environmental factors. We are coming to believe that the nature and condition of the reproduction and other surface vegetation beneath living canopies are not due to any single factor such as light or soil moisture, but to a complex of factors.

Root Growth Of White Pine (Pinus Strobus L.), Clark Leavitt Stevens

Yale School of the Environment Bulletin Series

Periodic measurements were made throughout two growing seasons to determine the rate of growth in length of lateral roots of white pine, four to six years old, planted in open fields.....Wide variation between individual roots was observed in the amount of growth made annually.

The Eli Whitney Forest: A Demonstration Of Forestry Practice, Ralph C. Hawley, William Maughan

Yale School of the Environment Bulletin Series

This publication has been prepared as a contribution toward solving some of the forestry problems with which owners of woodland are confronted. Forest conditions and details and methods of forest management on one property, the Eli Whitney Forest, are set forth here in the hope that the recital may provide a helpful object lesson.

The Effect Of Soil Moisture On The Establishment Of Spruce Reproduction In British Columbia, Percy Munson Barr

Yale School of the Environment Bulletin Series

Most of the field work has been conducted at the Aleza Lake Forest Experiment Station, in the valley of the Upper Fraser River, near the city of Prince George [British Columbia].

I. A series of twelve permanent plots (numbers 1 to 12) was established for the purpose of studying the occurrence of natural reproduction on various types of seed bed, under different densities of overwood and on northern and southern aspects. 2. A second series of four plots (numbers 17 to 20) was laid out in logged-off land for the purpose of studying the survival and growth of advance reproduction …

Diameter Distribution Series In Evenaged Forest Stands, Walter H. Meyer

Yale School of the Environment Bulletin Series

BOTH in natural and in planted forest stands trees vary greatly in diameter, form, and height, even when the trees are all of the same age. For example, in a natural forest stand of Douglas fir, aged seventy years and located on a poor growing site, the trees may range from 5 to 18 inches in diameter at breast height (4.5 feet above the ground). The numbers of trees in the range of diameter .classes are not equal, but are small in classes at the extremes of the range and large in the central classes. If these numbers were plotted …

Aspen : Availability, Properties, And Utilization, R.P.A. Johnson, Joseph Kittredge, Henry Schmitz

Aspen Bibliography

No abstract provided.