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1. Color reaction tests for leaf cutter bees, circa 1965
Color reaction tests for leaf cutter bees, circa 1965
2. Color test for leaf cutter bees, circa 1965
Color test for leaf cutter bees, circa 1965
3. Light experiment by Dr. David O. Chilcote, 1966
Light experiment by Dr. David O. Chilcote, 1966
4. NP fertilized plot at Kasetsart University, 1959
NP fertilized plot at Kasetsart University, 1959
5. Fertilizer experiment in Thailand, 1959
Fertilizer experiment in Thailand, 1959
6. Unidentified experiment
Unidentified experiment
Description
Covered glass bulbs covering trays of soil media with unidentified plants inside bulbs.
7. Bumblebee experiment in greenhouse, Oregon State University, Corvallis, Oregon, circa 1965
Bumblebee experiment in greenhouse, Oregon State University, Corvallis, Oregon, circa 1965
8. Unidentified experiment
Unidentified experiment
Description
Covered glass bulbs covering trays of soil media with unidentified plants inside bulbs.
9. Unidentified experiment
Unidentified experiment
Description
Unidentified, shelved small sample containers Hicks-Chatten Engraving Co. ordering slip attached to back.
10. Unidentified experiment
Unidentified experiment
Description
Hanging apparatus for recording descent of ring suspended at end of string at bottom of image.
Oregon State University Libraries University of Oregon Libraries