Grade Range: K-12
Resource Type(s): Primary Source, Artifacts
Date Posted: 7/9/2009
This early respirator for producing artificial respiration over long periods of time was designed and constructed by the donor, John Haven Emerson. Completed in July 1931, it was first used in the summer of that year at the Providence City Hospital, Providence, R.I...
Historical Thinking Standards (Grades K-4)
Historical Thinking Standards (Grades 5-12)
United States History Standards (Grades 5-12)