562 Experiments 



Original mixture: O* 91.5. 

 Lethal air: CO 36.0; O* 54.9. 



CO 



CO + O* = 99.6; = 0.98. CO x P = 24.2. 



O 



Experiment CXIV. February 5. Bell-jar of 1.3 liters. 

 Pressure lowered 30 cm., 50 cm., 50 cm., the fourth time left at 

 45 cm. 



Entered at 4 o'clock. Dead at 8:15; the pressure was 38 cm. 

 Lethal air: CO* 49.3; O 36.6. 

 CO x P = 24.6. 



Experiment CXV. February 6. Bell- jar of 675 cc. 



Pressure lowered successively 30 cm., 50 cm., and 50 cm., and 

 compensation made each time with oxygen. Closed cocks at 2:35; the 

 pressure was 57 cm. Dead at 5:45. Cranial suffusions in places. 

 Actual pressure 55 cm. 



Mixture before the experiment: O* 87.8. 



Lethal air: CO> 36.3; O 50.1. 



CO> 



CO + O = 86.4; = 0.97; CO* x P = 26.2. 



O* 



Experiment CXVI. February 19. Bell-jar of 675 cc. 



Pressure lowered once 30 cm., and twice lowered 50 cm.; each 

 time, oxygen admitted. Actual pressure finally 64 cm. Closed the cocks 

 at 1:50. 



Dead at 3:35; little bloody mottlings on the cranium. Jugular 

 blood red. 



Lethal air: CO* 27.7; O* 54.7. 



64 



The CO* tension is CO* x P = 27.7 x = 23.3. 



76 



Experiment CXVII. February 19. Bell-jar of 1.35 liters. 



Pressure lowered 30 cm., 50 cm., 50 cm.; the last time left at 46 

 cm. 



Cocks closed at 2 o'clock; at 4:15, very sick. At death, the pres- 

 sure is 43 cm. Slight cranial suffusions. 



Lethal air: CO* 42.4; O* 29.8. 



CO* x P = 24.5. 



Experiment CXV III. February 19. Bell-jar of 2.2 liters. 

 Pressure lowered 30 cm., 50 cm., 50 cm., then to 34 cm. of actual 

 pressure. 



Closed at 2:15; died at 6:45; enormous cranial suffusions. 

 Actual pressure, 29 cm. 

 Lethal air: CO* 66; O* 13.1. 

 CO* x P = 25.2. 



29 

 The pressure of the oxygen remaining is only 13.1 x — = 5. 



76 



