Leonard Porter Ayres

The Economics of Recovery

Leonard Porter Ayres

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Leonard Porter Ayres The Economics of Recovery

Health Work in the Public Schools

Leonard Porter Ayres

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Leonard Porter Ayres Health Work in the Public Schools

Essays

Leonard Porter Ayres

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Leonard Porter Ayres Essays

School Buildings and Equipment, Issue 9

May Ayres Burgess

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May Ayres Burgess School Buildings and Equipment, Issue 9

The Cleveland School Survey: Summary Volume, Issue 16

Leonard Porter Ayres

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Leonard Porter Ayres The Cleveland School Survey: Summary Volume, Issue 16

The Great Events of the Great War; a Comprehensive and Readable Source Record of the World's Great War, Emphasizing the More Important Events, and Pre

Leonard Porter Ayres

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Leonard Porter Ayres The Great Events of the Great War; a Comprehensive and Readable Source Record of the World's Great War, Emphasizing the More Important Events, and Pre

The Public Library And The Public Schools

Leonard Porter Ayres

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Leonard Porter Ayres The Public Library And The Public Schools

Laggards In Our Schools

Leonard Porter Ayres

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Leonard Porter Ayres Laggards In Our Schools

The Relation Between Entering Age and Subsequent Progress Among School Children ..

Leonard Porter Ayres

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Leonard Porter Ayres The Relation Between Entering Age and Subsequent Progress Among School Children ..

The Money Cost of Repetition Versus the Money Saving Through Acceleration

Leonard Porter Ayres

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Leonard Porter Ayres The Money Cost of Repetition Versus the Money Saving Through Acceleration