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| Date: | 1899 |
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| Description: | A studio portrait of naturalist, conservationist, and writer John Muir. |
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| Description: | Six-man crew at Camp Mercer looking for ribes (gooseberries), a stage essential for the transmission of blister rust to white pines, working in a marsh are... |
| Date: | 1966 |
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| Description: | Gaylord Nelson participates in a canoe trip down the Namekagon River in an effort to protect the river under the National Wild and Scenic Rivers Act. |
| Date: | 1978 |
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| Description: | Students at Wausau West High School involved in an innovative science project that studied energy consumption and pollution of the Wisconsin River. |
| Date: | 04 1970 |
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| Description: | Acting on the suggestion of his mentor Senator Gaylord Nelson, Wisconsin congressman David R. Obey participated (here at a gym) at the first Earth Day even... |
| Date: | 04 1970 |
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| Description: | Fundraising advertisement for the Environmental Teach-In on April 22 in honor of Earth Day. The first sentence reads: "A disease has infected our country."... |
| Date: | 07 1966 |
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| Description: | View across canal towards the back of the Portage Hosiery. Reeds and trees are along the edge of the canal. Red and pink colored liquid is floating on the ... |
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| Description: | German film critics Enno Patalas and Frieda Grafe stand on a groyne (a wooden and cement barrier) on the beach in Knokke-le-Zoute, Belgium. Grafe is highe... |
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| Description: | German film critics Enno Patalas and Frieda Grafe are seen at the beach in Knokke-le-Zoute, Belgium. The two are on a groyne (a wooden and cement barrier)... |
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