[Letter from N.E. Bjorklund, assistant manager of Forest Industries Tree Nursery to The Library, U.S. Dept. of Agriculture]

Forest Industries Tree Nursery

1952

The seasonal trends in moisture content, ether extractives, and energy of ponderosa pine and Douglas-fir needles

Charles W. Philpot

1971

The natural regeneration of Douglas fir in the Pacific Northwest

Julius Valentine Hofmann

1924

Dynamics and simulated yield of Douglas-fir

Kenneth J. Mitchell

1975

Effects of new export rules, a spotted owl plan, and recession on timber prices and shipments from the Douglas-fir region

Donald F. Flora

1992

Douglas-fir tussock moth, Orgyia pseudotsugata (McDunnough), Pike National Forest, 1986

Gene D. Lessard

1986

The Douglas-fir/pinegrass habitat type in central Idaho

Steele, Robert W.

1993

Initial and continued effects of a release spray in a coastal Oregon Douglas-fir plantation

Edmund L. Obermeyer, Richard E. Miller

1996

Ammonium nitrate, urea, and biuret fertilizers increase volume growth of 57-year-old Douglas-fir trees within a gradient of nitrogen deficiency

Richard E. Miller

1996

Silvical characteristics of Douglas-fir (var. menziesii)

Leo A. Isaac

1958

Mergers and economic concentration in the Douglas-fir lumber industry

Walter J. Mead

1964

Lumber yields by the new timber cruising log grades for old-growth coast Douglas-fir

Marlin E. Plank

1976

Potential production in thinned Douglas-fir plantations

Bruce, David

1969

Applicability of four regional volume tables for estimating growth response to thinning in Douglas fir

Richard L. Williamson

1982

Use of artificial shade to increase survival of Douglas-Fir in the Roseburg area

Lewis, R.

1978

Douglas-fir thinning handbook

United States. Bureau of Land Management. Oregon State Office

1964

User's guide to the Douglas-fir beetle impact model

Michael A. Marsden

1994

A study of decay in douglas fir in the Pacific Northwest

J. S. Boyce

1923

Major Douglas-fir habitat types of central Idaho

Steele, Robert W.

1995

The tree

Dana Lyons

2002

Douglas fir pitch moth

Josef Brunner

1915

Results of shelterwood harvesting of Douglas-fir in the Cascades of western Oregon

Richard L. Williamson

1973

Douglas-fir (Pseudotsuga menziessi)

Harold S. Betts

1960

Some simulation estimates of mean annual increment of Douglas-fir

Robert O. Curtis

1994

Information on the douglas fir beetle in Idaho and Montana

James C. Evenden

1927

Storing endrin-coated and endrin-impregnated Douglas-fir seed

M. A. Radwan

1970

The Douglas-fir/white spirea habitat type in central Idaho

Steele, Robert W.

1994

Vegetation structure in old-growth stands in the Coram Research Natural Area in northwestern Montana

Caryl L. Elzinga

1997

Arasan in endrin treatments to protect Douglas-fir seed from deer mice

Glenn LeRoy Crouch

1972

Pest risk assessment of the importation of Pinus Radiata and Douglas-fir logs from New Zealand

United States. Forest Service

1992