MOTION OF THE HEART AND BLOOD 



In the more perfect warm-blooded adult animals, 

 as man, the blood passes from the right ventricle of 

 the heart through the pulmonary artery to the lungs, 

 from there through the pulmonary vein into the left 

 auricle, and then into the left ventricle. First I 

 shall show how this may be so, and then that it is so. 



[60] 



