| Florus Ignác Stašek (1782-1862) The cut stem of a plant, photomicrograph 1840 Daguerreotype National Technical Museum LL/61274 For the context of this photograph: Petra Trnkova, Spring 2015, "'Stašek’s' Cross-Section of a Plant", Daguerreotype Journal, year 2, no. 2, pp. 38-47
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