4.55 The MacKenzie File
5.20 An Introduction: Oceanography
5.45 Your Own Optics Laboratory
6.10 Ontario - Land Use
6.35 Argument on Television: 1
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4.55 The MacKenzie File
5.20 An Introduction: Oceanography
5.45 Your Own Optics Laboratory
6.10 Ontario - Land Use
6.35 Argument on Television: 1