LIBROS DEL AUTOR: charles herbert williams

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  • Six Lectures Upon School Hygiene
    Charles Herbert Williams / Frank Wells / Frank Winthrop Draper
    Six Lectures Upon School Hygiene is a book written by Frank Wells and published in 1886. The book contains six lectures that were delivered under the auspices of the Massachusetts Emergency and Hygiene Association to teachers in the public schools. The lectures cover various topics related to school hygiene, including the importance of proper ventilation, lighting, and heating ...
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