1907.] Rate of Assumption of Chloroform by the Blood. 561 



conditions, with the same percentage of chloroform the subsequent ansesthetisa- 

 tion will generally proceed in a perfectly normal manner for a prolonged period 

 of time. We consider this is a fact of much importance which will be 

 subsequently considered. 



The results of this experiment are shown in Curve II. The type and 

 frequency of the respirations at the times the samples were taken are given 

 in Column 7 of the table. 



Experiment III. — Cat. Weight 3'5 kilogrammes. Chloroform, between 3 and 

 4 per cent., administered by a WoulfFs bottle. This experiment is of a 

 special interest, as the early cessation of respiration mentioned in connection 

 with the last experiment took place, but the animal recovered naturally, 

 without it being necessary to discontinue the chloroform. 













Differences 





Time. 



Aneesl 



"Weight of 

 ihetic. sample of 

 blood taken. 



Weight of 

 AgCl found. 



Percentage 

 of chlorine. 



in percentages 



of chlorine, 



reckoned as 



CHC1 3 . 



Remarks. 



12.15 



N 2 C 



) on 











12.32 



j 



3 '3454 



'0456 



337 



— 



Control 



12.40 



Chlor 

 3-4 pe 



oform 

 r cent. 











12. 41 





, 2 -444 



0377 



'3814 



-0498 





12. 43 





2 4221 



-0388 



'3961 



0-066 





2. 44 





, — 



— 



— 



— 



Slight eye 



2.46 





, 3 -3243 



'0497 



-3696 



'0366 



reflexes 



2.48 





, — 



— 



— 



— 



Reflexes 



2.50 





2 -4079 



'0361 



-3707 



-0378 



gone 



2.55 





2 -8451 



0441 



-3832 



-0519 





1.0 





2 -954 



-0467 



-3909 



-0604 





1.10 





2 -7349 



-0434 



-3923 



-0621 





1.20 





2 -7826 



'0441 



'3918 



-0615 





1.30 





2 -9142 



-0466 



-3954 



'0655 





1. 35^ 





, 2 -4282 



-0389 



-3961 



-0663 



Respiration 

 ceasing 



1.38 



j 



1 '8758 



0-03 



3954 



-0656 



1st asphyx- 

 ial convul- 

 sion 



In Curve III the results of this experiment are illustrated graphically, and 

 we append a portion of the respiration tracing : — 



