.\ tracing show ing a lug 

 Sinus Arrhythmia i 

 irregular, bul t i 



\\ i 1 1 1 the usual tin 



in the "a" ••■" ii U 







^[A/^A^- V4 







',', s 



1 





Sinus Bradycardia. I 

 sinus; the " a <•" ii ten al is normal 



•ally P ■_ l] 



Premature Beats. I 

 origin. In tl 



ilarly throughout, bu1 ti i 







k - 





■ ••Ii it Ii (hi 



Tills is «il.. 



• ■ 

 follow ed h 





