| Date | 1836 |
| Author | Schulze |
| Contribution | Reported that the development of microorganisms in sterile organic matter can be prevented by chemical treatment of incoming air. |
| Reference | Lechevalier |
| Notes | Used sulfuric acid or potassium hydroxide. This was a contribution to the long Spontaneous Generation controversy that was separate from, but relevant to, the Germ Theory. The work was cited by Pasteur. |
| Category | Miscellany |
| Pathogen Class | General |
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