I III 





The tiucstion w 

 purely reflex in I 



IIMIlMli 



in the 3( use i hal 

 tomaticitj of the hearl i 

 which ■ 



hi inli- 

 matic respirator} eei t< 



suit of chi 

 the facl that il 

 nervous impulses. I 

 of ihf center as beinj 

 dependent u\ aff< Its 









Medulla 



t roofj 



y 











be merelj a facto i 

 ordinarily controlli 



11 \\ hich . 

 '•'■lit .-r iua\ or ii 



undertaken I 

 isolation "f 



Tin- iiillu- 

 the pedum 

 puis 



the spina 

 the i><>-' 



