Illustrations showing microscopic views of: a snail's teeth (Fig. 1); a silk-worm's egg (Fig. 2); vinegar eels (Fig. 3). Schem. XXV from Micrographia: or some physiological descriptions of minute bodies made by magnifying glasses with observations and Inquiries thereupon, by Robert Hooke (London, 1665).
Original: copperplate engraving. 1665
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Microscopic views of a snail's teeth, silk-worm's egg and vinegar eels appears in: