Preliminary survey of the natural history of McNab's Island, Halifax Harbour, Nova Scotia : [draft manuscript]
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Preliminary survey of the natural history of McNab's Island, Halifax Harbour, Nova Scotia : [draft manuscript]
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 a barley osmotic stress array
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Photographs of a barley osmotic stress array
Photographs of flora and fungi along the Magnetawan River, Ontario
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Photographs of flora and fungi along the Magnetawan River, Ontario
Photographs of forest and flora near Thompson, Manitoba
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Photographs of forest and flora near Thompson, Manitoba
Photographs of birds around Tuktoyaktuk, Northwest Territories
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Photographs of birds around Tuktoyaktuk, Northwest Territories
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 plant regrowth morphology in the Northwest Territories
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Photographs of plant regrowth morphology in the Northwest Territories
Effects of experimental crude oil spills on Taiga and tundra vegetation of the Canadian Arctic : [manuscript]
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Effects of experimental crude oil spills on Taiga and tundra vegetation of the Canadian Arctic : [manuscript]
Photographs of flora and fauna near Jasper, Alberta
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Photographs of flora and fauna near Jasper, Alberta
Photographs of the Harrowby Bay spill site
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Photographs of the Harrowby Bay spill site
Photographs of the flora of Fundy National Park
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Photographs of the flora of Fundy National Park
Photographs of flora and scenery at Death Valley, California
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Photographs of flora and scenery at Death Valley, California
Impact of crude oil spills on Arctic and Sub-Arctic vegetation : [manuscript]
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Impact of crude oil spills on Arctic and Sub-Arctic vegetation : [manuscript]
Photographs of birds at Smoking Hills, Northwest Territories
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Photographs of birds at Smoking Hills, Northwest Territories
Photographs of flora at Cape Bathurst and Cape Parry, Northwest Territories
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Photographs of flora at Cape Bathurst and Cape Parry, Northwest Territories
Photographs of acid rain evidence at Killarney, Ontario
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Photographs of acid rain evidence at Killarney, Ontario
Photographs of flora at Crawford Lake, Burlington, Ontario
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Photographs of flora at Crawford Lake, Burlington, Ontario
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Photograph of an oiled embayment at Alexandria Bay, New York
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Photograph of a docked "slick licker" at Alexandria Bay, New York
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Photograph of weathered crude oil affecting Corex at Alexandria Bay, New York
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Photograph of oil and cladophora along the shore at Alexandria Bay, New York
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Photograph of an oil pollution control tanker truck at Alexandria Bay, New York
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Photograph of oil along the shore at Alexandria Bay, New York
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Photograph of an oiled boat at Alexandria Bay, New York
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Photograph of an oiled blue-winged teal at Alexandria Bay, New York
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Photograph of oil along the shore at Alexandria Bay, New York
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Photograph of oil along the shore, affecting Salix babylonica, at Alexandria Bay, New York
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Photograph of a researcher examining weathered crude oil at Alexandria Bay, New York
Photographs of flora at Camp Naivelt, Brampton, Ontario
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Photographs of flora at Camp Naivelt, Brampton, Ontario
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]
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Photograph of oil invading a marshy embayment at Alexandria Bay, New York
Evaluation of loading of sulphate and heavy metals along a S-SE transect centering on Sudbury, Ontario ; Evaluation of sulphate and heavy metal loading rates and total sulphation as affected by forest canopies near Sudbury, Ontario ; Effects of smelter emissions on surrounding forest plant communities near Sudbury, Ontario : [manuscript and correspondence]
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Evaluation of loading of sulphate and heavy metals along a S-SE transect centering on Sudbury, Ontario ; Evaluation of sulphate and heavy metal loading rates and total sulphation as affected by forest canopies near Sudbury, Ontario ; Effects of smelter emissions on surrounding forest plant communities near Sudbury, Ontario : [manuscript and correspondence]
Population trends in water fowl wintering in the Toronto region, 1929-1976 : [manuscript]
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Population trends in water fowl wintering in the Toronto region, 1929-1976 : [manuscript]
Photographs of birds at the Headland site, Toronto
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Photographs of birds at the Headland site, Toronto
Melanistic Butler's garter snakes (Thamnophis butleri) at Amherstburg, Ontario : [manuscript]
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Melanistic Butler's garter snakes (Thamnophis butleri) at Amherstburg, Ontario : [manuscript]
Photographs of the Postville and Michelin Lake areas of Labrador
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Photographs of the Postville and Michelin Lake areas of Labrador
Waterfowl populations in the vicinity of the Leslie Street headland, Toronto, Ontario, October 1975 to September 1976 : [manuscript]
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Waterfowl populations in the vicinity of the Leslie Street headland, Toronto, Ontario, October 1975 to September 1976 : [manuscript]
Photographs of flora at Lake Joseph and Parry Sound, Ontario
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Photographs of flora at Lake Joseph and Parry Sound, Ontario
Photographs of trees at Minesing Swamp, near Barrie, Ontario
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Photographs of trees at Minesing Swamp, near Barrie, Ontario
Effects of experimental crude oil spills on subarctic boreal forest vegetation near Norman Wells, N.W.T., Canada : [manuscript]
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Effects of experimental crude oil spills on subarctic boreal forest vegetation near Norman Wells, N.W.T., Canada : [manuscript]
Photographs of the Amoco Cadiz oil spill, off Brittany
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Photographs of the Amoco Cadiz oil spill, off Brittany
Population size and structure of four sympatric species of snakes at Amherstburg, Ontario : [manuscript]
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Population size and structure of four sympatric species of snakes at Amherstburg, Ontario : [manuscript]
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 geology and flora of Sverdrup Pass, Ellesmere Island
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Photographs of the geology and flora of Sverdrup Pass, Ellesmere Island
Movements of sympatric species of snakes at Amherstburg, Ontario : [manuscript]
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Movements of sympatric species of snakes at Amherstburg, Ontario : [manuscript]
Photographs of Musk-ox at Sverdrup Pass, Ellesmere Island
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Photographs of Musk-ox at Sverdrup Pass, Ellesmere Island
Photographs of Great Grey, Snowy, and Barred owls
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Photographs of Great Grey, Snowy, and Barred owls
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 Rock ptarmigan at Fiona Lake, Somerset Island
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Photographs of Rock ptarmigan at Fiona Lake, Somerset Island