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Ross Clark (L) and Chad Avery (R) grilling meat on Thornhill lawn at Employee picnicJuly 1981
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Chad Avery at desk in office
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Chad Avery reviewing plant specimen at Plant Clinic desk with visitorJuly 1982
Kohout, John
Photographic image
Chad Avery reviewing plant specimen at Plant Clinic desk with visitorJuly 1982
Kohout, John
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Chad Avery at Plant Clinic desk helping visitor with plant specimenJuly 1982
Kohout, John
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Chad Avery and Ed Hedborn helping visitors at Plant Clinic counterJuly 1982
Kohout, John
Map
Morton Arboretum Survey 1982 [Base map for grid expansion into Aceraceae, Caprifoliaceae, and Ericaceae]October 1982
Koehler, Lee