

What particularly 

 <//•<//// in 'i normal . h 



three w avea abo> e 1 1 

 They have been l< 

 and in all Buch Is m In 



line of zero potei tial ind 

 the apex. The exacl ■ ■ 

 simultaneous!} \\ itli I 

 changes occurring in the 











i. 



ha\ e been secured by 1 



how ii in Fig - i 



ventricular 

 It w ill !>«• obs< I 



traction of th< 

 sent in th< 



lion of tl 

 ami dill 

 the presph\ gniio 



■ 



