Pollution by arsenic in a gold-mining district in Nova Scotia : [manuscript]
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Pollution by arsenic in a gold-mining district in Nova Scotia : [manuscript]
Pollutant inputs from the atmosphere and accumulations in soils and vegetation near a nickel-copper smelter at Sudbury, Ontario, Canada : [manuscript and correspondence]
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Pollutant inputs from the atmosphere and accumulations in soils and vegetation near a nickel-copper smelter at Sudbury, Ontario, Canada : [manuscript and correspondence]
Physical and ecological characteristics of Alexandra Fiord, a high arctic oasis on Ellesmere Island, Canada : [manuscript and correspondence]
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Physical and ecological characteristics of Alexandra Fiord, a high arctic oasis on Ellesmere Island, Canada : [manuscript and correspondence]
Physical and biological effects of experimental crude oil spills on Low Arctic tundra in the vicinity of Tuktoyaktuk, N.W.T., Canada : [manuscript]
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Physical and biological effects of experimental crude oil spills on Low Arctic tundra in the vicinity of Tuktoyaktuk, N.W.T., Canada : [manuscript]
Photographs of Voisey's Bay, Newfoundland and Labrador
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Photographs of Voisey's Bay, Newfoundland and Labrador
Photographs of vegetation in barrens and bogs of Nova Scotia
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Photographs of vegetation in barrens and bogs of Nova Scotia
Photographs of vegetation and scenery at Smoking Hills and Horton River, Northwest Territories
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Photographs of vegetation and scenery at Smoking Hills and Horton River, Northwest Territories
Photographs of vascular plant communities at Alexandra Fiord, Ellesmere Island
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Photographs of vascular plant communities at Alexandra Fiord, Ellesmere Island
Photographs of tundra scenes, Northwest Territories
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Photographs of tundra scenes, Northwest Territories
Photographs of trees at Minesing Swamp, near Barrie, Ontario
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Photographs of trees at Minesing Swamp, near Barrie, Ontario
Photographs of travels on Vancouver Island, Vancouver, and Manning Park, British Columbia
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Photographs of travels on Vancouver Island, Vancouver, and Manning Park, British Columbia
Photographs of the scenery and flora at Fiona Lake, Somerset Island
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Photographs of the scenery and flora at Fiona Lake, Somerset Island
Photographs of the Postville and Michelin Lake areas of Labrador
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Photographs of the Postville and Michelin Lake areas of Labrador
Photographs of the Harrowby Bay spill site
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Photographs of the Harrowby Bay spill site
Photographs of the geology and flora of Sverdrup Pass, Ellesmere Island
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Photographs of the geology and flora of Sverdrup Pass, Ellesmere Island
Photographs of the flora, fauna, and buildings on Sable Island, Nova Scotia
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Photographs of the flora, fauna, and buildings on Sable Island, Nova Scotia
Photographs of the flora of southern Ontario
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Photographs of the flora of southern Ontario
Photographs of the flora of Fundy National Park
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Photographs of the flora of Fundy National Park
Photographs of the flora and scenery around Norman Wells and Jackfish Lake, Northwest Territories
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Photographs of the flora and scenery around Norman Wells and Jackfish Lake, Northwest Territories
Photographs of the flora and fauna of Gros Morne National Park and Cape St. Mary's Park Reserve, Newfoundland
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Photographs of the flora and fauna of Gros Morne National Park and Cape St. Mary's Park Reserve, Newfoundland
Photographs of the Exxon Valdez oil spill
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Photographs of the Exxon Valdez oil spill
Photographs of the effects of pollution of Double-crested cormorant in the Great Lakes and Lake Winnipegosis
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Photographs of the effects of pollution of Double-crested cormorant in the Great Lakes and Lake Winnipegosis
Photographs of the effect of acidification of amphibian larvae
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Photographs of the effect of acidification of amphibian larvae
Photographs of the destruction caused at Point Pleasant Park, Halifax, Nova Scotia, by the Brown Spruce longhorn beetle
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Photographs of the destruction caused at Point Pleasant Park, Halifax, Nova Scotia, by the Brown Spruce longhorn beetle
Photographs of the Arrow oil spill, Chedabucto Bay, Nova Scotia
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Photographs of the Arrow oil spill, Chedabucto Bay, Nova Scotia
Photographs of the area around Smoking Hills, Northwest Territories
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Photographs of the area around Smoking Hills, Northwest Territories
Photographs of the Amoco Cadiz oil spill, off Brittany
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Photographs of the Amoco Cadiz oil spill, off Brittany
Photographs of tailings sites around Sudbury
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Photographs of tailings sites around Sudbury
Photographs of surveys at Gros Morne National Park and the Churchill River, Labrador
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Photographs of surveys at Gros Morne National Park and the Churchill River, Labrador
Photographs of Sudbury scenes
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Photographs of Sudbury scenes
Photographs of spill clean-up sites around Tuktoyaktuk
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Photographs of spill clean-up sites around Tuktoyaktuk
Photographs of Snow goose at Alexandra Fiord, Ellesmere Island
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Photographs of Snow goose at Alexandra Fiord, Ellesmere Island
Photographs of Snow bunting at Cape Bathurst and Alexandra Fiord
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Photographs of Snow bunting at Cape Bathurst and Alexandra Fiord
Photographs of snakes at Amherstburg, Ontario, and the Allegheny Plateau, New York
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Photographs of snakes at Amherstburg, Ontario, and the Allegheny Plateau, New York
Photographs of small experimental oil spills sites around Tuktoyaktuk, Northwest Territories
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Photographs of small experimental oil spills sites around Tuktoyaktuk, Northwest Territories
Photographs of sea life
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Photographs of sea life
Photographs of Rock ptarmigan at Fiona Lake, Somerset Island
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Photographs of Rock ptarmigan at Fiona Lake, Somerset Island
Photographs of research equipment and infrastructure, Alexandra Fiord, Ellesmere Island
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Photographs of research equipment and infrastructure, Alexandra Fiord, Ellesmere Island
Photographs of recovery from Spruce budworm in Cape Breton Highlands National Park
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Photographs of recovery from Spruce budworm in Cape Breton Highlands National Park
Photographs of plants from Alexandra Fiord, Ellesmere Island
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Photographs of plants from Alexandra Fiord, Ellesmere Island
Photographs of plants around Tuktoyaktuk
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Photographs of plants around Tuktoyaktuk
Photographs of plant regrowth morphology in the Northwest Territories
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Photographs of plant regrowth morphology in the Northwest Territories
Photographs of Parasitic jaeger at Alexandra Fiord, Ellesmere Island
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Photographs of Parasitic jaeger at Alexandra Fiord, Ellesmere Island
Photographs of Old squaw at Alexandra Fiord, Ellesmere Island
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Photographs of Old squaw at Alexandra Fiord, Ellesmere Island
Photographs of Musk-ox at Sverdrup Pass, Ellesmere Island
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Photographs of Musk-ox at Sverdrup Pass, Ellesmere Island
Photographs of Long-tailed jaeger at Eureka and Alexandra Fiord, Ellesmere Island
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Photographs of Long-tailed jaeger at Eureka and Alexandra Fiord, Ellesmere Island
Photographs of leaf damage cause by accidental emission of acidic particulates from the Tufts Cove generating station, Dartmouth, Nova Scotia
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Photographs of leaf damage cause by accidental emission of acidic particulates from the Tufts Cove generating station, Dartmouth, Nova Scotia
Photographs of hydro power scenes in Quebec and Ontario
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Photographs of hydro power scenes in Quebec and Ontario
Photographs of Great Grey, Snowy, and Barred owls
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Photographs of Great Grey, Snowy, and Barred owls
Photographs of glyphosate spraying at Brier Island, Nova Scotia
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Photographs of glyphosate spraying at Brier Island, Nova Scotia