2!><S THE CIRCULATION OF THE BLOOD 



^Henderson, Y., and Eaggard, W. H.: Jour. Biol. Chem., 191S, xxxiii, 3::::, 345-355 



365 (gives older references). See also Macleod, J. J. l;.: .lour. Lab. and Clin. 



Med., (editorial), 1918, iii. 

 ssShort, Eendel: Lancet, London, 1914, p. 131. 

 s*Mann: .Jour. Am. Med. Assn., 1918, Ixx, ('ill. Also Boston Med. and Surg. Jour., 



1917. 

 ssCannon, W. B.: Papers by Cannon and Collaborators in Jour. Am. Med. Assn., 1918. 



Ixx, 520, 526, 531, 611, 618. 

 ' Porter, E. L.: Proc. Am.'pliysiol. Sue, Am. Jour. Physiol., 1916, xlii, 606. 

 • Wiggers, C. J., and Dean, A. L.: Am. Jour. Physiol., 1916, xlii, 17<'>; Am. Jour. 



Med. Sc., li»17, elii, 666. 



