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Start Over You searched for: Formats Text Remove constraint Formats: Text Subjects Air Pollution, Indoor -- adverse effects Remove constraint Subjects: Air Pollution, Indoor -- adverse effects Languages English Remove constraint Languages: English Dates by Range 1850-1899 Remove constraint Dates by Range: 1850-1899

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2. The composition of expired air and its effects upon animal life: abstract of a report on the results of an investigation made for the Smithsonian Institution under the provisions of the Hodgkins fund