NLM Digital Collections

Search

Search Constraints

Start Over You searched for: Collections Medicine in the Americas, 1610-1920 Remove constraint Collections: Medicine in the Americas, 1610-1920 Subjects Air Pollution, Indoor -- adverse effects Remove constraint Subjects: Air Pollution, Indoor -- adverse effects Subjects Ventilation Remove constraint Subjects: Ventilation Dates by Range 1850-1899 Remove constraint Dates by Range: 1850-1899

Search Results

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