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Start Over Collections Medicine in the Americas, 1610-1920 ✖Remove constraint Collections: Medicine in the Americas, 1610-1920 Subjects Water Purification -- methods ✖Remove constraint Subjects: Water Purification -- methods Titles The efficacy of filters and other means employed to purify drinking water: a bacteriological study ✖Remove constraint Titles: The efficacy of filters and other means employed to purify drinking water: a bacteriological study

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  • The efficacy of filters and other means employed to purify drinking water: a bacteriological study1