1. The composition of expired air and its effects upon animal life Author(s): Billings, John S. (John Shaw), 1838-1913, author Publication: City of Washington : Published by the Smithsonian Institution, 1895 Subject(s): Air Pollution, Indoor -- adverse effectsAir PollutantsExhalationVentilation
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 Author(s): Billings, John S. (John Shaw), 1838-1913, authorMitchell, S. Weir (Silas Weir), 1829-1914, authorBergey, D. H. (David Hendricks), 1860-1937, author Publication: Washington : Government Printing Office, 1896 Subject(s): Air Pollution, Indoor -- adverse effectsAir PollutantsExhalationVentilation
