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Start Over You searched for: Subjects Air Pollution, Indoor -- adverse effects Remove constraint Subjects: Air Pollution, Indoor -- adverse effects Authors Bergey, D. H. (David Hendricks), 1860-1937, author Remove constraint Authors: Bergey, D. H. (David Hendricks), 1860-1937, author Copyright Public domain Remove constraint Copyright: Public domain

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1. 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