932 



Experiments 



These data are identical with those on which I dwelt in Sub- 

 chapter IV of Chapter II. 



I can say the same relating to the final composition of the lethal 

 air. The variations were, for the oxygen, from 4.3 (Exp. DCXLII) 

 to 1.5 (Exp. DCXXXIX), and for carbonic acid, from 12.6 (Exp. 

 DCXXXIX) to 15.8 (Exp. DCXXXVIII). 



Fig. 79 — Death by asphyxia in a 

 in a closed vessel; gases 

 of the air. (Exp. DCXL.) 



Fig. 80 — Death by asphy- 

 xia in closed vessels; 

 gases of the blood. 

 (Exp. DCXXXIV.) 



Let us now take up the gases of the blood. Here too the accom- 

 panying graph (Fig. 80) (the volume of the gases was not reduced 

 to zero) shows the facts very clearly (Exp. DCXXXIV) . 



As we know, the oxygen continues to diminish in the arterial 

 blood. But it does not diminish in a manner regularly propor- 

 tional to the time; in the first hour, in fact, we see that the propor- 

 tion of oxygen dropped only 6.6 volumes, whereas it fell more than 

 14 in the second hour. 



