PBS
Pbs Learning Media: Discovering Air
Our understanding about the air we breathe has changed dramatically through time. This illustrated timeline from the NOVA Web site tracks the changing thought on air and the creation of the Periodic Table of the Elements.
Wikimedia
Wikipedia: Phlogiston Theory
Wikipedia offers detailed information on the Phlogiston Theory, a discredited 17th century theory hypothesis regarding combustion.
Jim Loy
Jim Loy: Phlogiston Theory
A detailed explanation of the Phlogiston Theory, including reaction equations. Includes several formulas, examples, and detailed information.
Michigan Technological University
Michigan Technological University: Phlogiston Theory
A brief summary of the origins of the Phlogiston Theory can be found here. Also discussed is how Antoine Lavoisier superseded the theory.
Smithsonian Institution
National Postal Museum: Art of the Stamp: Joseph Priestley
View the artwork for a U.S. postage stamp issued in 1983 to commemorate Joseph Priestley, the scientist who discovered oxygen. With a short passage on his contributions to the teaching of history, religion, and science.
Curated OER
Wikipedia: Phlogiston Theory
Wikipedia offers detailed information on the Phlogiston Theory, a discredited 17th century theory hypothesis regarding combustion.