1. And phlogiston also fails the test.

2. Prior to Lavoisier, the phlogiston theory was the standard theory of combustion.

3. Construction of an appropriate machine shows that phlogiston is but one form of that more general thing, energy.

4. According to that theory, phlogiston is emitted from substances when they are burnt.

5. It is as dead as phlogiston and the universal aether.

6. I can understand why the whole phlogiston business would have been thought less than important in practical terms.

7. A thing was inflammable if it contained phlogiston.

8. As has been mentioned, some postulated that phlogiston has negative weight (levity).

9. As a matter of fact, Priestley defended the phlogiston theory right up to his death.

10. The phlogiston theory states that all flammable materials contain phlogiston that is liberated in burning, leaving the "dephlogisticated" substance in its "true" calx form.

11. There were similarities between Berthollet 's phlogiston theory and Lavoisier's theory of heat matter in fact, so Berthollet accepted oxygen easier.

12. "phlogiston theory, " this erroneous conception of burning, LED chemistry along a completely false trail.

13. This hazy " phlogiston theory, " this erroneous conception of burning, led chemistry along a completely false trail.

14. One way of overcoming the apparent falsification was to suggest that phlogiston has negative weight.

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15. Noting its effectiveness in sparking combustion, he called the gas " dephlogisticated air, " demonstrating his belief in phlogiston.

16. He isolated the major components of air, disproved the phlogiston theory by determining the role of oxygen in combustion, and organized the classification of compounds.

17. Fuel: The arcane nullifier X–21 requires two vials of phlogiston every hour.

18. There are few Ptolemaic astronomers left , or believers in the phlogiston theory of combustion.