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 the flora of southern Ontario
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Photographs of the flora of southern Ontario
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 flora and fauna near Jasper, Alberta
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Photographs of flora and fauna near Jasper, Alberta
Photographs of flora at Crawford Lake, Burlington, Ontario
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Photographs of flora at Crawford Lake, Burlington, Ontario
Photographs of birds around Tuktoyaktuk, Northwest Territories
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Photographs of birds around Tuktoyaktuk, Northwest Territories
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 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 tundra scenes, Northwest Territories
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Photographs of tundra scenes, Northwest Territories
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 flora at Camp Naivelt, Brampton, Ontario
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Photographs of flora at Camp Naivelt, Brampton, Ontario
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 flora at Lake Joseph and Parry Sound, Ontario
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Photographs of flora at Lake Joseph and Parry Sound, Ontario
Photographs of plants around Tuktoyaktuk
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Photographs of plants around Tuktoyaktuk
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
Photographs of forest and flora near Thompson, Manitoba
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Photographs of forest and flora near Thompson, Manitoba
Photographs of the Harrowby Bay spill site
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Photographs of the Harrowby Bay spill site
Photographs of the area around Smoking Hills, Northwest Territories
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Photographs of the area around Smoking Hills, Northwest Territories
Transparencies of Tuktoyaktuk spill vegetation recovery
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Transparencies of Tuktoyaktuk spill vegetation recovery
Photographs of Old squaw at Alexandra Fiord, Ellesmere Island
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Photographs of Old squaw at Alexandra Fiord, Ellesmere Island
Photographs of Great Grey, Snowy, and Barred owls
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Photographs of Great Grey, Snowy, and Barred owls
Photographs of Snow bunting at Cape Bathurst and Alexandra Fiord
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Photographs of Snow bunting at Cape Bathurst and Alexandra Fiord
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 Sudbury scenes
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Photographs of Sudbury scenes
Photographs of the flora of Fundy National Park
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Photographs of the flora of Fundy National Park
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 tailings sites around Sudbury
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Photographs of tailings sites around Sudbury
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 flora and scenery at Death Valley, California
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Photographs of flora and scenery at Death Valley, California
Intense, natural pollution affects Arctic tundra vegetation at the Smoking Hills, Canada : [manuscript and other materials]
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Intense, natural pollution affects Arctic tundra vegetation at the Smoking Hills, Canada : [manuscript and other materials]
Photographs of birds at Smoking Hills, Northwest Territories
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Photographs of birds at Smoking Hills, Northwest Territories
Photographs of acid rain evidence at Killarney, Ontario
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Photographs of acid rain evidence at Killarney, 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
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