A contribution to school hygiene : a paper read at a meeting of the National Health Society, on June 12th, 1873 / by R. Liebreich.
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A contribution to school hygiene : a paper read at a meeting of the National Health Society, on June 12th, 1873 / by R. Liebreich. Credit: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London). Public Domain Mark