| 1. | The phlogiston theory was proposed in 1667 by Johann Joachim Becher.
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| 2. | Crell was involved in the sometimes harsh discussion about the phlogiston theory.
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| 3. | Lavoisier s years of experimentation formed a body of work that contested phlogiston theory.
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| 4. | At the end of his life he became a follower of the phlogiston theory.
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| 5. | Von Crell translated some articles of Richard Kirwan, a supporter of the phlogiston theory.
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| 6. | Cavendish, as indicated above, used the language of the old phlogiston theory in chemistry.
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| 7. | Although many of his results puzzled him, Priestley used phlogiston theory to resolve the difficulties.
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| 8. | He recognized and named oxygen ( 1778 ) and hydrogen ( 1783 ) and opposed the phlogiston theory.
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| 9. | Scheele explained oxygen using phlogistical terms because he did not believe that his discovery disproved the phlogiston theory.
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| 10. | For example, the phlogiston theory was entirely replaced by the quite different concept of energy and related laws.
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