Feature

  1. Canadian Animals near Extinction

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  2. Waves in Steel Cause Turbine Wrecks

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  3. How Astronomers Will Observe Mars at Closest Approach

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  4. Hot Weather Clothing

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  5. Gas Mileage Wasted by Bad Adjustments

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  6. 163670

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  7. 81031

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  8. Forest Pests at Work in Yellowstone Park

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  9. Astronomer-Artist to Observe at Yerkes Observatory

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  10. Grafted Potatoes Grow like Fruit

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  11. Mt. Wilson to Measure Heat from Mars

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  12. Special Light Sensitive Plates to Catch Mars at Lick Observatory

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