

2 



u 



MECHANISM DF CARHIAC ACTION, [Sajous.] 



1, Inferior ~y~ena Cava, the bland of which contains 

 SEcretian. 2, Hepatic "Wains, the blnod nf -w/hich. contains 

 granules /3 dErived from the Liver. 3, Right fiuricle, 4, Dne of 

 the Coronary UrtEriss. 5, Dne of the Coronary Vpins. B, One 

 cf the Foramina TnEbesii. 



