USDA Forest Service:
c.1904. The Washington Office, 1904-1906. L-R: W.F. Fiske, E.C. Wood, Dr. A.D. Hopkins, J.L. Webb, J.F. Strauss, and H.E. Burke. Washington, D.C.
USDA Forest Service:
1942. Robert L. Furniss. USDA Bureau of Entomology and Plant Quarantine, Division of Forest Insect Investigations. Portland Lab, Federal Courthouse, Portland, Oregon.
USDA Forest Service:
1950. W.K. Coulter inspects egg concentrate for hemlock looper egg recovery. BEPQ. Portland, OR.
USDA Forest Service:
1953. Gelatin capsules used in rearing spruce budworm pupae in parasite studies. Lab in basement of Ranger Station at Wallowa, Oregon.
USDA Forest Service:
1955. Peter Frost divides budworm larvae into instars to determine spray readiness. Spruce budworm control project. Boise National Forest, Idaho.
USDA Forest Service:
1955. Binocular microscope used to identify larvaevorid puparia from spruce budworm rearing. W.K. Coulter at microscope. Field lab. Union, Oregon.
USDA Forest Service:
1955. Binocular microscope to identify larvaevorid puparia from spruce budworm rearing. V.M. Carolin at microscope. Field Lab. Union, Oregon.
USDA Forest Service:
1958. John Whiteside checking budworm development. Spruce budworm control project. John Day, Oregon.
USDA Forest Service:
1958. R.G. Mitchell making Chermes population counts with sling-attached microscope. Willamette Pass, Oregon.
USDA Forest Service:
1958. Forest entomologist Paul E. Buffam making population counts of Chermes (Balsam woolly adelgid). Microscope is held by a sling attached to the tree. Willamette Pass, Oregon.
USDA Forest Service:
1958. Forest entomologist Paul E. Buffam making population counts of Chermes (Balsam woolly adelgid). Microscope is held by a tripod. Willamette Pass, Oregon.
USDA Forest Service:
1958. D. Hughes, P.W. Orr, N. Kuenzi, and J. Hessle separating budworm instars. Spruce buworm control project. John Day, OR.
USDA Forest Service:
1958. Entomologists A. McKee, R. Primozic, J. Whiteside, and P. Orr. Spruce budworm control project. John Day, OR.
USDA Forest Service:
1961. Dave McComb checking collections. European pine shoot moth control. Bellevue, Washington.
USDA Forest Service:
1961. Home-made table microscope projector with microscope and lamp in place.
USDA Forest Service:
1961. Home-made table microscope projector with microscope and lamp in place.
USDA Forest Service:
1962. John Braidwood (standing) and Paul Buffam. Moss processing for western hemlock looper eggs. Examining samples with a microscope. Portland, Oregon.
USDA Forest Service:
1962. Moss processing for western hemlock looper eggs. Examining samples using a microscope. Portland, Oregon.
USDA Forest Service:
1962. Assistant biologist K.M. Paproke determining larval development. Western spruce budworm control project. Goldendale, Washington.
USDA Forest Service:
1962. Assistant biologist K.M. Paproke determining larval development. Western spruce budworm control project. Goldendale, Washington.
USDA Forest Service:
1962. Assistant biologist K.M. Paproke determining larval development. Western spruce budworm control project. Goldendale, Washington.
USDA Forest Service:
1963. Field laboratory at project headquarters. Western hemlock looper control project. Willapa Bay area, Washington.
USDA Forest Service:
1963. Field laboratory at project headquarters. Dennis Dokken (left) and Mark Headings; both USFS. Western hemlock looper control project in southwest Washington.
USDA Forest Service:
1963. Fundamental research on pathogenic micro-organisms is aided by the use of the electron microscope. Corvallis, Oregon.
USDA Forest Service:
1963. Darroll Skilling working with single sporidia of white pine blister rust using a micromanipulator. Ramsey County, Minnesota.
USDA Forest Service:
1964. Plant pathologist Ken J. Kessler, Jr., examines a finished slide under the microscope. Northern Hardwoods Laboratory, Marquette, Michigan.
USDA Forest Service:
c.1964. Tom Greathouse, R6 Regional Geneticist, examining pine pollen.
USDA Forest Service:
1964. Dividing spruce budworm larvae into instar stages to determine spray readiness. Spruce budworm control project, Operation Bugout. Salmon National Forest, Idaho.
USDA Forest Service:
1965. Forest entomologist Robert E. Dolph with a microscope.
USDA Forest Service:
1967. Dan Green and Stan Meso (seated, right). Cone evaluation. Seed and cone insects. Olympic National Forest, Washington.
