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More by Elliot Rowland Downing
A Naturalist in the Great Lakes Region
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The Third and Fourth Generation: An Introduction to Heredity
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A Source Book of Biological Nature-study
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A Source Book of Biological Nature-study
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The Spermatogenesis of Hydra ...
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Teaching Science in the Schools
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A Naturalist in the Great Lakes Region
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A Field and Laboratory Guide to Biological Nature Study ...
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The Third and Fourth Generation: An Introduction to Heredity
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A Naturalist in the Great Lakes Region
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The Third and Fourth Generation: An Introduction to Heredity
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A Naturalist in the Great Lakes Region
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The Nature-study Review: Devoted to All Phases of Nature-study in Elementary Schools, Volumes 5-6
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The Nature-study Review: Devoted to All Phases of Nature-study in Elementary Schools, Volumes 14-15
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The Nature-study Review: Devoted to All Phases of Nature-study in Elementary Schools, Volumes 12-13
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The Nature-study Review: Devoted to All Phases of Nature-study in Elementary Schools, Volumes 8-9
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The Nature-study Review: Volume 10, Issue 2
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The Nature-study Review: Devoted to All Phases of Nature-study in Elementary Schools, Volumes 16-17
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The Nature-study Review: Volume 14, Issue 2
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