René Descartes (1596–1650), De homine. Fig. 1, flaps raised

Leiden: P. Leffen & F. Moyardum, 1662

The flaps have been raised to reveal the left and right ventricles of the heart. To see the image with the flaps down, click on the ‘Related item’ shown below.

Keynes.R.1.1

Extended captions