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The "Trail Sweeper" using high pressure fog to blow leaves from a path (Brenner device).
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View of Crescent Glade at the Arboretum (Gray Summit), west of Trail House.
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View of Long glade from the north at the Arboretum (Gray Summit).
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View of rocky hillside with natural grove of native cedars at the Arboretum (Gray Summit).
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View of Brush Creek in flood at the east bridge, May 31, 1942.
1942 |
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Brush Creek in flood, May 31, 1942.
1942 |
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View of Arboretum (Gray Summit) in 1941.
1941 |
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View of Arboretum (Gray Summit) in 1941.
1941 |
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"The Barn" at the Arboretum (Shaw Nature Reserve)
1954-55
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First cleaning of reservoir at the Arboretum (Gray Summit), about 1949
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