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Detwiler, John D.
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Hydrology in a bell jar : chart.
Hydrology in a bell jar : chart.
Nature study in public schools.
Nature study in public schools.
The biological control of insect pests.
The biological control of insect pests.
The teaching of nature study.
The teaching of nature study.
The pearly fresh-water mussel and the pearl button industry.
The pearly fresh-water mussel and the pearl button industry.
Evolution.
Evolution.
Evolution of the cosmos.
Evolution of the cosmos.
Environment of the farm : speech to Middlesex educational assembly.
Environment of the farm : speech to Middlesex educational assembly.
Helpful insects.
Helpful insects.
Insects and birds.
Insects and birds.
Reforestation and flood control.
Reforestation and flood control.
Conservation : its meaning, objectives and our national organization.
Conservation : its meaning, objectives and our national organization.
Utilization of the White memorial park for educational and scientific purposes.
Utilization of the White memorial park for educational and scientific purposes.
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).
Timely hints to home gardeners.
Timely hints to home gardeners.
Conservation.
Conservation.
Flood control in South-western Ontario.
Flood control in South-western Ontario.
A reply to a toast to the faculty.
A reply to a toast to the faculty.
Biology.
Biology.
Conservation and our natural heritage.
Conservation and our natural heritage.
Conservation in Ohio.
Conservation in Ohio.
Conservation and flood control.
Conservation and flood control.
Review of paper presented at conference.
Review of paper presented at conference.
Gabrielson, Ira N.
Gabrielson, Ira N.
Hitchcock, H.B.
Hitchcock, H.B.
Packard, A.S.
Packard, A.S.
Reid, Kenneth A.
Reid, Kenneth A.
Sears, Paul B.
Sears, Paul B.
Unidentified authors.
Unidentified authors.
Unidentified authors.
Unidentified authors.
Thames Valley Flood Control meeting.
Thames Valley Flood Control meeting.
The Thames again in flood.
The Thames again in flood.
Insect friends and enemies of man.
Insect friends and enemies of man.
The problem of fish and wildlife.
The problem of fish and wildlife.
Our agricultural heritage.
Our agricultural heritage.
Our dependence on birds and insects.
Our dependence on birds and insects.
The ox warble flies.
The ox warble flies.
Life cycle of broad tapeworm, Diphyllobothrium latum.
Life cycle of broad tapeworm, Diphyllobothrium latum.
Fannia scaleris and Fannia canicularis.
Fannia scaleris and Fannia canicularis.
Notes on evolution.
Notes on evolution.
Speech notes.
Speech notes.
Speech notes.
Speech notes.
Notes on fraternities.
Notes on fraternities.
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.
Another flood.
Another flood.
What must we do to use South-western Ontario resources wisely?
What must we do to use South-western Ontario resources wisely?
Birds and flowers.
Birds and flowers.
Conservation.
Conservation.
Fundamentals in conservtaion education.
Fundamentals in conservtaion education.
Christianity and science.
Christianity and science.
Doon Valley.
Doon Valley.
Conservation : a common need of both our countries.
Conservation : a common need of both our countries.
Parasitic infestations of fish.
Parasitic infestations of fish.
Our dependence on birds and insects.
Our dependence on birds and insects.
Foster, Eddy E.
Foster, Eddy E.
Spring, H. Powell.
Spring, H. Powell.
Unidentified authors.
Unidentified authors.
Unidentified authors.
Unidentified authors.
Unidentified authors.
Unidentified authors.
Unidentified authors.
Unidentified authors.
Unidentified authors.
Unidentified authors.
Unidentified authors.
Unidentified authors.
Unidentified authors.
Unidentified authors.
Biology 560 : Insect Morphology.
Biology 560 : Insect Morphology.
Educational Materials.
Educational Materials.
West, A.S. and Lothian, T.M.
West, A.S. and Lothian, T.M.
Prepared microsope slides: salmon scales.
Prepared microsope slides: salmon scales.
Glass plate negatives: parasites and cocoons.
Glass plate negatives: parasites and cocoons.
Glass plate positives : slides for projection of scientific drawings.
Glass plate positives : slides for projection of scientific drawings.
Undated correspondence.
Undated correspondence.
Manuscripts
Manuscripts
Conservation.
Conservation.
A few reminiscences of the west.
A few reminiscences of the west.
Garden insects and how to control them.
Garden insects and how to control them.
The scientific attitude.
The scientific attitude.
Interesting ways of insects.
Interesting ways of insects.
The contribution of zoology to a liberal education.
The contribution of zoology to a liberal education.
Mother Nature's house cleaner.
Mother Nature's house cleaner.
Conservation and our natural heritage.
Conservation and our natural heritage.
Further studies of the ventral prothoracic gland of notodontid caterpillars.
Further studies of the ventral prothoracic gland of notodontid caterpillars.
Bugs.
Bugs.
Conservation.
Conservation.
Garden insects and the general principles of control.
Garden insects and the general principles of control.
Brook trout.
Brook trout.
Parental care by robins.
Parental care by robins.
Foreward[sic] and acknowledgements.
Foreward[sic] and acknowledgements.
Planning for conservation and for wildlife returns.
Planning for conservation and for wildlife returns.
The organization of a new society having to do with conservation.
The organization of a new society having to do with conservation.
Bailey, R.Y.
Bailey, R.Y.
Unidentified authors.
Unidentified authors.
Unidentified authors.
Unidentified authors.
Unidentified authors.
Unidentified authors.
Unidentified authors.
Unidentified authors.
Unidentified authors.
Unidentified authors.
Unidentified authors.
Unidentified authors.
Unidentified authors.
Unidentified authors.
Zoology 561.
Zoology 561.
Biology 300 : drawings.
Biology 300 : drawings.
Applied biology : drawings.
Applied biology : drawings.
Water.
Water.
Results 1 to 100 of 1184