Foundations of Experimental Biology

William Harvey and the Circulation of the Blood

Figures 1 and 2 from William Harvey,
Exercitatio Anatomica de Motu Cordus et Sanguinis in Animalibus,
1628, demonstrating the valves in the veins.

(Readings: Harvey, chapters VIII - XVII, plus Harvey's letter to Hofmann
and two essays to Riolan, in Harvey, Movement of the Heart and Blood.)