773 



.aetioi currents of thr (Hiiilniigui ilvriny its his/iinitori/ contractions. 

 Only in those few cases, already Umüwii to Rosenthal, in which 

 the respiratory movements remain nearly unaltered, could we find 

 but a small augmentation. Bnt even in these experiments an aug- 

 mentation of the frequency was to he seen, though slight. Until now 

 we have not yet met with an experimental result, pointing in an 

 0|)posite direction, i.e. a diminution of the frequency of the action 

 currents of the diaphragm after elimination of the vagi. 



First of all we will give some curves as evidence of our statement. 



fig. l/> 



Cat. Experiment of the 27"i Febr. 1923. Fig. la action 

 currents of the diaphragm before, fig. 1^ after elimina- 

 tion of the vagi. Time I'.l sec On the original photo- 

 graphs in 1« 56. in 1^ 65 action currents could be 

 counted during the marked 5". So the frequency was 

 112 before, and 130 per sec. after tiie elimination of the 

 vagi. (The date in these figures is wrong. I 



fig. 2a 



fig. 21, 



Gat. Experiment of the 19*1 Dec. 1922. As 

 foregoing figure. Frequency in 2« 98 per sec, 

 in Hb 120 per sec. 



