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Start Over You searched for: Subjects Air ✖Remove constraint Subjects: Air Dates by Range 1800-1849 ✖Remove constraint Dates by Range: 1800-1849Refine by:
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- An inaugural essay on the effects produced by air upon living animals: submitted to the examination of the Revd. John Andrews, D.D. Provost, (pro tempore) the trustees, and medical faculty of the University of Pennsylvania, for the degree of doctor of medicine, on the 5th day of June 18051
- Experiments and observations on the vegetation of plants: which shew that the common opinion of the amelioration of the atmosphere by vegetation in solar light, is ill founded1
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Current results range from 1802 to 1805