|Contribution||Used a single lens to observe the cell "nucleus."|
|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.|
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