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Archival descriptionFeeding experiments with brook trout fingerlings.
Feeding experiments with brook trout fingerlings.
Fishery experiments : charts.
Fishery experiments : charts.
Mount Pleasant fish hatchery : speckled trout feeding experiments.
Mount Pleasant fish hatchery : speckled trout feeding experiments.
Fish hatchery investigations : diaries.
Fish hatchery investigations : diaries.
Fish hatchery investigations : diaries.
Fish hatchery investigations : diaries.
Normandale fish hatchery : temperature records.
Normandale fish hatchery : temperature records.
Brook trout feeding experiments conducted at the provincial fish hatchery, Mt. Pleasant, Ontario : diaries, June 1-Sept. 14, 1931
Brook trout feeding experiments conducted at the provincial fish hatchery, Mt. Pleasant, Ontario : diaries, June 1-Sept. 14, 1931
Report on brook trout feeding experiments conducted at the provincial fish hatchery, Mt. Pleasant, Ontario, from June 1 to September 14, 1931.
Report on brook trout feeding experiments conducted at the provincial fish hatchery, Mt. Pleasant, Ontario, from June 1 to September 14, 1931.
University of Western Ontario : fisheries correspondence, 1948-1949.
University of Western Ontario : fisheries correspondence, 1948-1949.
Fish hatchery investigations.
Fish hatchery investigations.
Fish hatchery investigations.
Fish hatchery investigations.
Fish Hatchery Investigations
Fish Hatchery Investigations
Notes and correspondence.
Notes and correspondence.
Review of paper presented at conference.
Review of paper presented at conference.
Thames River.
Thames River.
Applied biology 453B : fish and water.
Applied biology 453B : fish and water.
Applied biology 400 and 460A.
Applied biology 400 and 460A.
Invertebrate zoology : lecture outline.
Invertebrate zoology : lecture outline.
Applied Biology 400 : systematic synopses of acarina and crustacea.
Applied Biology 400 : systematic synopses of acarina and crustacea.
Crustacea.
Crustacea.
The Arthropods.
The Arthropods.
Acarina.
Acarina.
Applied biology course notes.
Applied biology course notes.
Applied biology 460B
Applied biology 460B
Applied biology courses and lectures.
Applied biology courses and lectures.
Teaching and Miscellaneous Notes
Teaching and Miscellaneous Notes
Wildlife conservation, U.s. and Canada.
Wildlife conservation, U.s. and Canada.
Address to the Western Ontario Educational Assembly.
Address to the Western Ontario Educational Assembly.
Importance of science in education..
Importance of science in education..
United Nations Scientific Conference on the Conservation and Utilization of Resources.
United Nations Scientific Conference on the Conservation and Utilization of Resources.
Afield with a naturalist.
Afield with a naturalist.
Soil physics.
Soil physics.
Our dependence on birds and insects.
Our dependence on birds and insects.
Conservation and flood control.
Conservation and flood control.
Conservation.
Conservation.
Conservation in Ohio.
Conservation in Ohio.
Conservation and our natural heritage.
Conservation and our natural heritage.
The organization of a new society having to do with conservation.
The organization of a new society having to do with conservation.
Biology.
Biology.
Planning for conservation and for wildlife returns.
Planning for conservation and for wildlife returns.
Parasitic infestations of fish.
Parasitic infestations of fish.
A reply to a toast to the faculty.
A reply to a toast to the faculty.
Typescripts : Speeches, Article Drafts and Notes
Typescripts : Speeches, Article Drafts and Notes
The protection of fish and wildlife in water use projects / by professor J.D. Detwiler.
The protection of fish and wildlife in water use projects / by professor J.D. Detwiler.
Floods and flood control / by John D. Detwiler.
Floods and flood control / by John D. Detwiler.
Further studies of the ventral prothoracic gland of notodontid caterpillars / by John D. Detwiler.
Further studies of the ventral prothoracic gland of notodontid caterpillars / by John D. Detwiler.
Conservation paper no. 3 : Soil conservation and land use / by John D. Detwiler.
Conservation paper no. 3 : Soil conservation and land use / by John D. Detwiler.
Conservation paper no. 2 : flood control / by John D. Detwiler.
Conservation paper no. 2 : flood control / by John D. Detwiler.
Conservation paper no. 1 : Conservation and wildlife / by John D. Detwiler.
Conservation paper no. 1 : Conservation and wildlife / by John D. Detwiler.
Published Papers by John Detwiler
Published Papers by John Detwiler
Conservation and development of natural resources : post-war rehabilitation.
Conservation and development of natural resources : post-war rehabilitation.
Foreward[sic] and acknowledgements.
Foreward[sic] and acknowledgements.
Address on the history of the Conservation Commission of Canada and continuing need for its like.
Address on the history of the Conservation Commission of Canada and continuing need for its like.
Flood control in South-western Ontario.
Flood control in South-western Ontario.
Address at the Rehabilitation Through Conservation meeting, Orrawa, march 10, 1943.
Address at the Rehabilitation Through Conservation meeting, Orrawa, march 10, 1943.
Parental care by robins.
Parental care by robins.
Soil conservation.
Soil conservation.
Conservation.
Conservation.
Sod webworms.
Sod webworms.
Conservation : a common need of both our countries.
Conservation : a common need of both our countries.
Doon Valley.
Doon Valley.
Conservation sublimated.
Conservation sublimated.
Rehabilitation in Canada.
Rehabilitation in Canada.
Timely hints to home gardeners.
Timely hints to home gardeners.
Twenty minutes with the amateur gardener.
Twenty minutes with the amateur gardener.
The aesthetic appreciation of the farm.
The aesthetic appreciation of the farm.
Christianity and science.
Christianity and science.
Notes on the myiasis of the urinary tract due to larvae of the genus Fannia (Diptera).
Notes on the myiasis of the urinary tract due to larvae of the genus Fannia (Diptera).
Planning in terms of the furure on the Ganaraska.
Planning in terms of the furure on the Ganaraska.
The administration of the conservation of the natural resources of the Province of Ontario.
The administration of the conservation of the natural resources of the Province of Ontario.
Discussion of problems related to conservation.
Discussion of problems related to conservation.
Utilization of the White memorial park for educational and scientific purposes.
Utilization of the White memorial park for educational and scientific purposes.
Fundamentals in conservtaion education.
Fundamentals in conservtaion education.
Forest cover and water conservation.
Forest cover and water conservation.
Conservation : its meaning, objectives and our national organization.
Conservation : its meaning, objectives and our national organization.
land-use adjustment in Southern Ontario.
land-use adjustment in Southern Ontario.
Brook trout.
Brook trout.
Conservation.
Conservation.
Reforestation and flood control.
Reforestation and flood control.
Insects and birds.
Insects and birds.
Entomology and the arts curriculum.
Entomology and the arts curriculum.
The care of house plants.
The care of house plants.
Helpful insects.
Helpful insects.
Birds and flowers.
Birds and flowers.
The Thames again in flood.
The Thames again in flood.
Letter to the Globe and Mail, re fresh water study.
Letter to the Globe and Mail, re fresh water study.
Floods again.
Floods again.
Those awful starlings.
Those awful starlings.
Flood control.
Flood control.
What must we do to use South-western Ontario resources wisely?
What must we do to use South-western Ontario resources wisely?
Another flood.
Another flood.
Taming the Thames : whose job is it?
Taming the Thames : whose job is it?
Timely suggestions with reference to slath-borer injury caused in London this summer.
Timely suggestions with reference to slath-borer injury caused in London this summer.
Garden insects and the general principles of control.
Garden insects and the general principles of control.
Floods and flood control.
Floods and flood control.
The late Sir Charles Saunders.
The late Sir Charles Saunders.
The protection of fish and wildlife in water use projects.
The protection of fish and wildlife in water use projects.
Conservation : the basis of human progress.
Conservation : the basis of human progress.
Total food and fibre production of all lands in full production.
Total food and fibre production of all lands in full production.
The ox warble flies : radio talk.
The ox warble flies : radio talk.
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