Pynciau a Argymhellir O fewn eich chwiliad
Dangos 1 - 20 canlyniadau o 288 ar gyfer chwilio '', amser ymholiad: 0.14e Mireinio'r Canlyniadau
1
Effects of aerial application of DDT for tussock moth control on nestling survival of mountain bluebirds and house wrens /
gan Thomas, Jack Ward
Portland, Or. : Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service, 1974

Government Document Llyfr
2
Particle sizes in slash fire smoke /
gan Sandberg, David V., 1944-
Portland, Or. : Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, 1975

Government Document Llyfr
3
Influence of date of cone collection on Douglas-fir seed processing and germination : a case history /
gan Olson, Donald F.
Portland, Or. : Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1975

Government Document Llyfr
4
Lumber recovery from large, highly defective, low grade Coast Douglas-fir /
gan Snellgrove, Thomas A.
Portland, Or. : Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service, 1975

Government Document Llyfr
5
Geology and geomorphology of the H.J. Andrews Experimental Forest, Western Cascades, Oregon /
gan Swanson, Frederick J. (Frederick John), 1943-
Portland, Or. : Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1975

Government Document Llyfr
6
Effect of wildfire on soil wettability in the high Cascades of Oregon /
gan Dyrness, C. T.
Portland, Or. : Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service, 1976

Government Document Llyfr
7
Per-acre pricing : its effect on logging residue /
gan Hamilton, Thomas E.
Portland, Or. : Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1975

Government Document Llyfr
8
Field and computer techniques for stem analysis of coniferous forest trees /
gan Herman, Francis R.
Portland, Or. : Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service, 1975

Government Document Llyfr
9
Estimation of decay in old-growth western hemlock and Sitka spruce in southeast Alaska /
gan Farr, Wilbur A.
Portland, Or. : Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service, 1976

Government Document Llyfr
10
Annual report of the Pacific Northwest Forest and Range Experiment Station for the calendar year ...
Portland, Or. : The Station, 1939

Government Document Cyfresol
11
Wildlife habitats in managed rangelands the Great Basin of southeastern Oregon : mule deer /
Portland, Or. : Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1982

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Government Document Llyfr
12
Comparison of western spruce budworm populations and damage on grand fir and Douglas-fir trees /
gan Carolin, V. M. (Valentine M.), 1918-
Portland, Or. : Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service, 1975

Government Document Llyfr
13
Seed production of central Oregon ponderosa and lodgepole pines /
gan Dahms, Walter G.
Portland, Or. : Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1975

Government Document Llyfr
14
Lumber recovery from grand fir thinnings at a bandmill and chipping canter /
gan Fahey, Thomas D. (Thomas Daniel), 1935-
Portland, Or. : Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1975

Government Document Llyfr
15
Seasonal trends in the nutritive content of important range forage species near Silver Lake, Oregon /
gan Hickman, Otis Eugene
Portland, Or. : Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, 1975

Government Document Llyfr
16
Douglas fir tussock moth egg hatch and larval development in relation to phenology of grand fir and Douglas-fir in northeastern Oregon /
gan Wickman, Boyd E.
Portland, Or. : Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service, 1976

Government Document Llyfr
17
Determination of skyline load capability with a programable [sic] pocket calculator /
gan Carson, Ward W.
Portland, Or. : Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service, 1976

Government Document Llyfr
18
Results of shelterwood cutting in western hemlock /
gan Williamson, Richard L.
Portland, Or. : Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service, 1976

Government Document Llyfr
19
Spatial distribution of lumber degrade in white fir trees /
gan Pong, W. Y.
Portland, Or. : Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service, 1974

Government Document Llyfr
20
Cassette tapes for interpretation /
gan Wagar, J. Alan
Portland, Or. : Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service, 1976

Government Document Llyfr
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