54 HERBERT ALBERT RATNER 



2. 'Motion of the arteries through dissection of Hving 

 animals.' (Ch. 3) 



3. ' Motion of the heart and auricles through dissection 

 of Hving animals.' (Ch. 4) 



4. ' Motion, action and function of the heart.' (Ch. 5) 



B. Motion of the Contained Parts from Right to Left 

 Ventricle 



1 . ' Ways by which blood passes from right ventricle to 

 left.' (Ch. 6) 



2. 'That the blood pass through the lung from right 

 ventricle to left.' (Ch. 7) 



Part 3. Circular Motion of the Contained Part (Ch. 8-17) 

 A. The Thesis and Demonstration (Ch. 8-14) 



1. Preliminary statement of the thesis: " Of the abun- 

 dance of blood passing through the heart out of the 

 veins into the arteries and of the circular motion of 

 the blood." (Ch. 8) 



2. The three suppositions necessary for the demon- 

 stration. 



a. ' The first supposition ': " the blood is incessantly 

 transmitted by the pulse of the heart out of the 

 vena cava into the arteries in such abundance that 

 it cannot be supplied from the ingesta, and in such 

 wise that the whole mass must very quickly pass 

 through the heart." "^ 



(1) ' circulation of blood confirmed from it.' 

 (Ch. 9) 



(2) ' is freed from objections and further confirmed 

 by experiments.' (Ch. 10) 



b. ' The second supposition ': " the blood under the 

 influence of the arterial pulse enters and is im- 

 pelled in a continuous, equable, and incessant 



" Harvey, Works, ed. cit., ch. 9, p. 48. 



