ATRIAL MUSCULATURE 277 
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BacHMANN 1916 Am. Journ. of Physiol., vol. 41, p. 309. 
EyYsTER AND Meek 1914 Heart, vol. 5, p. 119. 
GANTER AND ZAHN 1912 Archiv f. d. Ges. Physiol., Bd. 141, S. 335. 
Keita AND Fiack 1907 Journ. of Anat. and Physiol., vol. 41, p. 172. 
Lewis 1910-11 Heart, vol. 2, p. 23. 
Lewis, MeEAKins AND WHITE Philos. Transact. of R. 8. of London, ser. B, vol. 
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Lewis AND OPPENHEIMER 1910 Heart, vol. 2, p. 147. 
MEEK AND EystER 1914 Heart, vol. 5, p. 227; Am. Journ. of Physiol., vol. 34, 
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ScHitomovitz, Eyster AND Merk 1915 Am. Journ. of Physiol., vol. 37, p. 177. 
SpaLTEHOLZ Hand Atlas, vol. 2, figs. 413, 414. 
Toutpr Atlas, figs. 958, 959. 
Wrsauw 1910 Arch. Internat. d. Physiol., T. 10, p. 78. 
