THE GETTY / SCIENCE PHOTO LIBRARY THE GETTY / SCIENCE PHOTO LIBRARY
Steven Blankaart (1650-1704), Dutch physician. Blankaart studied the circulatory system, helping to prove the existence of the capillaries. He used injection techniques to show the pathway taken by blood through capillary beds. He also studied insect reproduction. Blankaart worked and taught at the University of Franeker. This portrait, showing him aged 45 in around 1695, is by David van der Plaats (1647-1704), engraved by Pieter van Gunst.
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