Death in Closed Vessels 



567 



Experiment CXXXI. June 18. 



Sparrow; taken to 14 atmospheres at 3:33. Dead at 4:12. Lived 39 

 minutes. Struggling, but no convulsions. 



Venous blood very red, with gas. Scalp suffusions very extensive, 

 of a bright red. 



Lethal air: CO* 0.93. 



CO* x P = 13.2. 



Experiment CXXXII. June 19. 



Sparrow; taken at 3:04 to 2 atmospheres. Dead at 6:53 without 

 convulsions, without foam on the beak; lived 3 hours 49 minutes. The 

 cranial diploe contains bloody suffusions in small blackish patches. 

 The color of the venous blood is normal; no gas. 



Lethal air: CO* 12.6; O* 3.2. 



CO* x P = 25.2. 



Experiment CXXXIII. June 19. 



Sparrow; taken to 17 atmospheres from 2:04 to 2:15. Dead at 2:54. 

 Lived 39 minutes; respiration very slow, no convulsions, red froth on 

 beak. 



Very extensive bloody suffusions; venous blood very red, con- 

 taining much gas. 



Lethal air: CO* 0.6; O* 18.6. 



CO* x P — 10.2. 



Table VII 



Before passing to the study of the results of these experiments, 

 grouped in Table VII in increasing order of pressure, I think I 

 should call attention to the fact that the preceding analyses of the 



