1911.] Ventilation of the Lung during Chloroform Narcosis. 353 



Fig. 3. 



Depth of respiration, 1 division = 13'7 c.c. ; time intervals, 30 sees. ; |, 2 per cent, 

 chloroform on. 



The whole data of this experiment are given in Table III. 



Table III. 



Intervals of 













time during 



which 

 respiration 

 was counted, 





Frequency 



Average 



Total 





Anaesthetic. 



of 



respiration. 



depth of 

 respiration. 



ventilation, 



Remarks. 



in minutes. 













0-5 



Interval before 

 CHCla, recovery 

 from N„0 



22 



85 "35 



1878 





0-5 



.CHCla on,"2 per 

 cent., at 

 beginning of 

 this period 



29 



66 -44, 



1927 





0-5 



CHC1 3 2 per cent. 



27 



2S -08 



758 





0-5 





13 



8-*2 



107 





5 





15 



37 -26 



559 





0-5 





8 



17 -95 



144 





0-5 





11 



52 -61 



579 





5 





13 



31 -1 



404 





0-5 





35 



28-5 



427 





0-5 





]6 



27 "26 



436 





0-5 





9 



16 -58 



149 





0-5 





13 



38 36 



499 





0-5 





12 



12 35 



148 





05 





12 



18 -22 



219 





0-5 





9 



22-74. 



205 





1 -o 





30 



36 -99 



1110 





