Photographs of birds around Tuktoyaktuk, Northwest Territories
Photographs of birds around Tuktoyaktuk, Northwest Territories
Photographs of glyphosate spraying at Brier Island, Nova Scotia
Photographs of glyphosate spraying at Brier Island, Nova Scotia
Photograph of Bill Freedman and others at Brier Island, Nova Scotia
Photograph of geological formations on the coast of Brier Island, Nova Scotia
Photograph of a helicopter spraying Glyphosate at Brier Island, Nova Scotia
Photograph of a helicopter spraying Glyphosate at Brier Island, Nova Scotia
Photograph of a helicopter spraying Glyphosate at Brier Island, Nova Scotia
Photograph of a helicopter spraying Glyphosate at Brier Island, Nova Scotia
Photograph of a helicopter spraying Glyphosate at Brier Island, Nova Scotia
Photograph of a helicopter spraying Glyphosate at Brier Island, Nova Scotia
Photograph of a helicopter spraying Glyphosate at Brier Island, Nova Scotia
Photographs of trees at Minesing Swamp, near Barrie, Ontario
Photographs of trees at Minesing Swamp, near Barrie, Ontario
Photographs of recovery from Spruce budworm in Cape Breton Highlands National Park
Photographs of recovery from Spruce budworm in Cape Breton Highlands National Park
Photographs of hydro power scenes in Quebec and Ontario
Photographs of hydro power scenes in Quebec and Ontario
Photographs of the flora of southern Ontario
Photographs of the flora of southern Ontario
Photographs of forest regrowth in the Tobeatic Wilderness Area, Nova Scotia
Photographs of forest regrowth in the Tobeatic Wilderness Area, Nova Scotia
Photographs of the flora of Fundy National Park
Photographs of the flora of Fundy National Park
Photographs of vascular plant communities at Alexandra Fiord, Ellesmere Island
Photographs of vascular plant communities at Alexandra Fiord, Ellesmere Island
Research notes related to tree counts at locations in Fairview and South End Halifax
Research notes related to tree counts at locations in Fairview and South End Halifax
Photograph of a nesting Arctic tern at Alexandra Fiord, Ellesmere Island
Photograph of a nesting Arctic tern at Alexandra Fiord, Ellesmere Island
Photograph of a nesting Arctic tern at Alexandra Fiord, Ellesmere Island
Photograph of an Arctic tern looking at two eggs at a nest site at Alexandra Fiord, Ellesmere Island
Photograph of a nesting Arctic tern at Alexandra Fiord, Ellesmere Island
Photograph of a nesting Arctic tern at Alexandra Fiord, Ellesmere Island
Photograph of a nesting Arctic tern at Alexandra Fiord, Ellesmere Island
Photograph of a nesting Arctic tern at Alexandra Fiord, Ellesmere Island
Photograph of an Arctic tern standing near a nest site at Alexandra Fiord, Ellesmere Island
Photograph of a nesting Arctic tern at Alexandra Fiord, Ellesmere Island
Photograph of a nesting Arctic tern at Alexandra Fiord, Ellesmere Island
Photograph of a nesting Arctic tern at Alexandra Fiord, Ellesmere Island
Photograph of a nesting Arctic tern at Alexandra Fiord, Ellesmere Island
Photograph of a nesting Arctic tern at Alexandra Fiord, Ellesmere Island
Photograph of a nesting Arctic tern at Alexandra Fiord, Ellesmere Island
Photograph of a nesting Arctic tern at Alexandra Fiord, Ellesmere Island
Photograph of a nesting Arctic tern at Alexandra Fiord, Ellesmere Island
Photograph of an Arctic tern looking at an egg at a nest site at Alexandra Fiord, Ellesmere Island
Photograph of a Snow goose nesting at Alexandra Fiord, Ellesmere Island
Photographs of Arctic fox at Alexandra Fiord, Ellesmere Island
Photographs of Arctic fox at Alexandra Fiord, Ellesmere Island
Photographs of Baird's sandpiper at Alexandra Fiord, Ellesmere Island
Photographs of Baird's sandpiper at Alexandra Fiord, Ellesmere Island
Photographs of breeding birds at Alexandra Fiord, Ellesmere Island
Photographs of breeding birds at Alexandra Fiord, Ellesmere Island
Photographs of Old squaw at Alexandra Fiord, Ellesmere Island
Photographs of Old squaw at Alexandra Fiord, Ellesmere Island
Photographs of plants from Alexandra Fiord, Ellesmere Island
Photographs of plants from Alexandra Fiord, Ellesmere Island
Photographs of glacial retreat at Alexandra Fiord, Ellesmere Island
Photographs of glacial retreat at Alexandra Fiord, Ellesmere Island
Photographs of vegetation and scenery at Smoking Hills and Horton River, Northwest Territories
Photographs of vegetation and scenery at Smoking Hills and Horton River, Northwest Territories
Ecology of a polar oasis : Alexandra Fiord, Ellesmere Island, Canada : [manuscript and correspondence]
Ecology of a polar oasis : Alexandra Fiord, Ellesmere Island, Canada : [manuscript and correspondence]
Ion mass balances and seasonal fluxes from four acidic brown water streams in Nova Scotia : [manuscript and correspondence]
Ion mass balances and seasonal fluxes from four acidic brown water streams in Nova Scotia : [manuscript and correspondence]
Experimental studies of the effects of acidity and associated water chemistry on amphibians : [manuscript and other materials]
Experimental studies of the effects of acidity and associated water chemistry on amphibians : [manuscript and other materials]
Lead and zinc contamination of roadside soil and vegetation in Halifax, Nova Scotia : [manuscript and other materials]
Lead and zinc contamination of roadside soil and vegetation in Halifax, Nova Scotia : [manuscript and other materials]
Smelter pollution near Sudbury, Ontario, Canada, and effects on forest litter decomposition :
Smelter pollution near Sudbury, Ontario, Canada, and effects on forest litter decomposition :
