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Arbor Day Centennial, tree planting, Marion Hall at microphone speaking to crowdApril 22 1972
Beasley, Michael
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Web Crowley and Chris Martner assisting visitor in wheelchair at Plant Clinic deskOctober 1993
Nachel, Jim
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Acer platanoides (Norway maple), residential streetApril 1969
Crowley Jr., Webster R.
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Arbor Day Centennial, Centennial Grove tree planting, Web Crowley at microphone on stage as child holds up piece of paperApril 22 1972
Beasley, Michael
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Arbor Day Centennial, tree planting, Tony Tyznik at microphone speaking to crowdApril 22 1972
Beasley, Michael
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Arbor Day Centennial, tree planting, Marion Hall at microphone speaking to crowdApril 22 1972
Beasley, Michael
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Arbor Day Centennial, tree planting, Marion Hall at microphone speaking to crowdApril 22 1972
Beasley, Michael
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Arbor Day Centennial, tree planting, Alfred Etter at microphone speaking to crowdApril 22 1972
Beasley, Michael
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Arbor Day Centennial, tree planting, Tony Tyznik at microphone speaking to crowdApril 22 1972
Beasley, Michael
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Arbor Day Centennial, tree planting, Marion Hall at microphone speaking to crowdApril 22 1972
Beasley, Michael
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Scanning Electron Microscope (SEM) research, male flowers of (L) Acer pennsylvanicum and (R) Rhus aromaticaCrowley Jr., Webster R.
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Arbor Day Centennial, tree planting, Tony Tyznik at microphone speaking to crowdApril 22 1972
Beasley, Michael
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Arbor Day Centennial, tree planting, Webster Crowley at microphone speaking to crowdApril 22 1972
Beasley, Michael
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Arbor Day Centennial, tree planting, Alfred Etter at microphone speaking to crowdApril 22 1972
Beasley, Michael
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Research crew operating a hydropneumatic elutriation root washing system in laboratory1990s
Kohout, John
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Arbor Day Centennial, tree planting, Marion Hall at microphone speaking to crowdApril 22 1972
Beasley, Michael
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Arbor Day Centennial, tree planting, small sheet of paper exchanged between Webster Crowley on stage and man holding shovel on groundApril 22 1972
Beasley, Michael
Article
Planting a Small Tree (Up to one inch in diameter)September 21 – December 20 1965
Crowley Jr., Webster R.
Article
An Imported Problem: Dutch Elm Disease, 1918 to 1966March 21 – June 20 1966
Crowley Jr., Webster R.