WILLIAM HARVEY, M. D. 55 



stream through every part and member of the 

 body, in much greater abundance than were suffi- 

 cient for nutrition, or than the whole mass of in- 

 gesta could supply " "^ 



(1) 'is confirmed/ (Ch. 11) 



(2) * circulation of blood confirmed from it.' (Ch. 

 12) 



c. * The third supposition ': " the veins in like manner 

 return this blood perpetually to the heart from all 

 members of the body " ^^ 



(1) ' confirmed and that there is a circulation of 

 blood from it.' (Ch. 13) 

 3. ' The conclusion of the demonstration concerning the 

 circulation of the blood.' (Ch. 14) 



B. Confirmation of Conclusion that the Blood Circulates 

 (Ch. 15-17) 



1. 'The circulation of the blood is confirmed by likely 

 reasons.' (Ch. 15) 



2. ' The circulation of the blood is proved from conse- 

 quences.' (Ch. 16) 



3. ' Motion and circulation of the blood is confirmed by 

 those things that appear in the heart and which are 

 clear from anatomical dissections.' (Ch. 17) 



In the Introduction (Part 1, B, 1) Harvey paves the way 

 for his new theory by showing that the existing theory is un- 

 satisfactory. He states in the opening paragraph that " In dis- 

 cussing the motion, pulse, action, use and utility of the heart 

 and arteries, we should first consider what others have said on 

 these matters, and what the common and traditional viewpoint 

 is. Then by anatomical dissection, multiplied experience, dili- 

 gent and accurate observation, we may confirm what is rightly 

 stated, but what is false make right." Harvey then carefully 

 examines the beliefs of his contemporaries in a series of seven- 



" Ibid. " Ibid. 



