| Date | 1832 |
| Author | Brown |
| Contribution | Used a single lens to observe the cell "nucleus." |
| Reference | Anon. |
| Notes | Robert Brown, botanist. The observations, made on the tissues of orchids, show the continued value of simple microscopes at a time when compound scopes had long been available but the achromatic objective was still a novelty. The nucleus appears in the drawings of earlier workers, but Brown called attention to it, and suggested the name "nucleus," in the paper published in 1832. |
| Category | Microscopy |
| Pathogen Class | General |
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