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Acer ginnala Maxim. (Amur maple)
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Clarence Godshalk with Webster Crowley studying Dutch Elm Disease
Photographic imageClarence Godshalk with Webster Crowley studying Dutch Elm Disease

1950s

The Morton Arboretum 50th anniversary standalone or traveling exhibit, facing Collections panel
Photographic imageThe Morton Arboretum 50th anniversary standalone or traveling exhibit, facing Collections panel

1972

The Morton Arboretum 50th anniversary standalone or traveling exhibit, Sterling Morton Library panel
Photographic imageThe Morton Arboretum 50th anniversary standalone or traveling exhibit, Sterling Morton Library panel

1972

The Morton Arboretum 50th anniversary standalone or traveling exhibit, photographs panel
Photographic image The Morton Arboretum 50th anniversary standalone or traveling exhibit, photographs panel

1972

The Morton Arboretum 50th anniversary standalone or traveling exhibit, facing photograph panel
Photographic image The Morton Arboretum 50th anniversary standalone or traveling exhibit, facing photograph panel

1972

The Morton Arboretum 50th anniversary standalone or traveling exhibit, Research panel
Photographic image The Morton Arboretum 50th anniversary standalone or traveling exhibit, Research panel

1972

Clarence Godshalk with Webster Crowley studying Dutch Elm Disease
Photographic imageClarence Godshalk with Webster Crowley studying Dutch Elm Disease

1950s

William Buckingham presenting a National Centennial Award to Web Crowley and George Ware
Photographic imageWilliam Buckingham presenting a National Centennial Award to Web Crowley and George Ware

1990

Herbarium's 75,000 accession, volunteers with Nina Podrasky (left), Bill Hess (seated), Web Crowley (standing third from R)
Photographic imageHerbarium's 75,000 accession, volunteers with Nina Podrasky (left), Bill Hess (seated), Web Crowley (standing third from R)

1989

Herbarium's 75,000 accession, volunteers with Nina Podrasky (left), Bill Hess (seated), Web Crowley (standing third from R)
Photographic imageHerbarium's 75,000 accession, volunteers with Nina Podrasky (left), Bill Hess (seated), Web Crowley (standing third from R)

1989

Research crew operating a hydropneumatic elutriation root washing system in laboratory
Photographic imageResearch crew operating a hydropneumatic elutriation root washing system in laboratory

1990s

Kohout, John

Web Crowley and woman measuring large tree
Photographic imageWeb Crowley and woman measuring large tree

Web Crowley at instrument in laboratory
Photographic imageWeb Crowley at instrument in laboratory

Kohout, John

Photographic imageWeb Crowley measuring tree

Scanning Electron Microscope (SEM) research, male flowers of (L) Acer pennsylvanicum and (R) Rhus aromatica
Photographic imageScanning Electron Microscope (SEM) research, male flowers of (L) Acer pennsylvanicum and (R) Rhus aromatica

Crowley Jr., Webster R.

Scanning Electron Microscope (SEM) research, pollen grains of (L) Acer pseudoplatanus and (R) Rhus typhina
Photographic imageScanning Electron Microscope (SEM) research, pollen grains of (L) Acer pseudoplatanus and (R) Rhus typhina

Crowley Jr., Webster R.

Scanning Electron Microscope (SEM) research, pollen grains of (L) Acer saccharum and (R) Rhus glabra
Photographic imageScanning Electron Microscope (SEM) research, pollen grains of (L) Acer saccharum and (R) Rhus glabra

Crowley Jr., Webster R.

Don Heldt Retirement Party - group at cake table - (L to R): Web Crowley, Don Heldt, Cara Heldt, Barb Mangano
Photographic imageDon Heldt Retirement Party - group at cake table - (L to R): Web Crowley, Don Heldt, Cara Heldt, Barb Mangano

1990

Web Crowley, portrait
Photographic imageWeb Crowley, portrait

Planting a Small Tree (Up to one inch in diameter)
ArticlePlanting a Small Tree (Up to one inch in diameter)

September 21 – December 20 1965

Crowley Jr., Webster R.

An Imported Problem: Dutch Elm Disease, 1918 to 1966
ArticleAn Imported Problem: Dutch Elm Disease, 1918 to 1966

March 21 – June 20 1966

Crowley Jr., Webster R.

Winter Injury
ArticleWinter Injury

December 21 1967 – March 20 1968

Crowley Jr., Webster R.

Early America in Plant Names (Part I)
ArticleEarly America in Plant Names (Part I)

June 21 – September 20 1976

Crowley Jr., Webster R.

Early America in Plant Names (Part II)
ArticleEarly America in Plant Names (Part II)

September 21 – December 20 1976

Crowley Jr., Webster R.

Large Native Trees of the Morton Arboretum
ArticleLarge Native Trees of the Morton Arboretum

December 21 1984 – March 20 1985

Crowley Jr., Webster R.

The Morton Arboretum Weather Station
ArticleThe Morton Arboretum Weather Station

March 21 – June 20 1989

Crowley Jr., Webster R.

The Scanning Electron Microscope at Work Documenting the Parentage of the ‘Marmo’ maple
ArticleThe Scanning Electron Microscope at Work Documenting the Parentage of the ‘Marmo’ maple

March 21 – June 20 1990

Crowley Jr., Webster R., Hess, William J.

Kissing Cousins: Sumacs and Maples
ArticleKissing Cousins: Sumacs and Maples

June 21 – September 20 1992

Winter, Kendall, Crowley Jr., Webster R., Hess, William J.

Some Broad-Leaved Evergreens for the Chicago Region
ArticleSome Broad-Leaved Evergreens for the Chicago Region

December 21 1992 – March 20 1993

Crowley Jr., Webster R.

Photographic imageSchulenberg Prairie

1960s

Crowley Jr., Webster R.

Photographic imageThe Morton Arboretum 1993 Calendar

1993

The Morton Arboretum

The Morton Arboretum Quarterly V. 01 No. 03
SerialThe Morton Arboretum Quarterly V. 01 No. 03

September 21 – December 20 1965

The Morton Arboretum Quarterly V. 01 No. 04
SerialThe Morton Arboretum Quarterly V. 01 No. 04

December 21 1965 – March 20 1966

The Morton Arboretum Quarterly V. 12 No. 02
SerialThe Morton Arboretum Quarterly V. 12 No. 02

June 21 – September 20 1976

The Morton Arboretum Quarterly V. 02 No. 01
SerialThe Morton Arboretum Quarterly V. 02 No. 01

March 21 – June 20 1966

The Morton Arboretum Quarterly V. 02 No. 02
SerialThe Morton Arboretum Quarterly V. 02 No. 02

June 21 – September 20 1966

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