Disease germs ; their supposed nature : an original investigation, with critical remarks / by Lional S. Beale.
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Disease germs ; their supposed nature : an original investigation, with critical remarks / by Lional S. Beale. Credit: This material has been provided by This material has been provided by London School of Hygiene & Tropical Medicine Library & Archives Service. The original may be consulted at London School of Hygiene & Tropical Medicine Library & Archives Service. where the originals may be consulted.. Public Domain Mark