Microscopes and microscopical objects, 1750. I: Wilson's pocket microscope. II: Scroll microscope. III: Tripod microscope - improved form of Marshall's double microscope. IV: Ascough's compound microscope. Figs 23/30: Representations of animalcules discovered by microscope in samples of ditch water and described in Royal Society Philosophical Transactions No 283. From The Universal Magazine, (London, 1750). (Photo by Oxford Science Archive/Print Collector/Getty Images)
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January 29th, 2021
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