556 Experiments 



about 4V2 hours, in a quantity of air corresponding to 2.650 liters at 

 normal pressure. 



The blood was very red in the left heart; less dark than in the 

 ordinary condition in the right jugular; no free gases in the blood. 



Lethal air: CO* 11.2; O. 8.5. 



Experiment XCII. July 21; house sparrow, young. Put in a pres- 

 sure of 5 atmospheres at 10 o'clock in the morning; found dead at 1 

 o'clock. 



Lethal air: CO. 6.0; O 14.2. 



Experiment XCIII. July 24; temperature 21°. House sparrow. 

 Placed in a pressure of 1V2 atmospheres at 5:10. Died at 8:45. Rectal 

 temperature 25.5°; venous blood fairly red; no free gases. Lived 3 

 hours 35 minutes in 1.580 liters of air, at normal pressure. 



Lethal air: CCb 15.2; O* 2.6. 



Experiment XCIV. July 25; temperature 23°. House sparrow, 

 rather old. At 4:35 taken to 2 atmospheres. Found dead at 7:45. 

 Lethal air: CCh 13.7; O? 5.0. 



Experiment XCV. July 26; temperature 23°. House sparrow. At 

 1:25, taken to 5 atmospheres. 



Died at 4:15. Rectal temperature 23°; blood and tissues red; the 

 heart was still beating after removal. Lived 2 hours 50 minutes in 

 the equivalent of 5.300 liters of air. 



Lethal air: CO 5.1; O* 13.4. 



Experiment XCV I. August 4. House sparrow. At 4:35 taken 

 to 6 atmospheres. At 5:30, very sick; found dead at 9:30. Venous 

 blood red; gas in the right heart and the jugulars, but not in the left 

 heart. 



Lethal air: CO2 4.2; O 16.0. 



Experiment XCVII. August 11. House sparrow. At 2:55, placed 

 at IV2 atmospheres. Very sick at 5:30. Found dead at 9 o'clock; 

 venous blood, dark. 



Lethal air: CO* 15.4; O2 2.5. 



Experiment XCVIII. August 17. Yellow-hammer (Emberiza cit- 

 rinella, Lin.). At 4:45, at 1 and % atmospheres. Sick at 6 o'clock; 

 found dead at 8 o'clock; venous blood dark; no gases. 



Lethal air: CO2 12.9; O* 4.9. 



Experiment XCIX. August 19; 22°. Linnet (Fringilla cannabina, 

 Lin.). 



Taken to 8.8 atmospheres. Closed the cock at 2:50; at 3:45, dis- 

 tressed, made efforts to vomit. At 4:45, fell on its side, respirations 

 grew slower and weaker; no convulsions. At 6 o'clock a quivering 

 in one foot, then extension: it was the last movement. 



Rectal temperature 25.5°. The venous blood was very red, with- 

 out gas; the heart was still beating, auricles and ventricles. Lived 

 3 hours and 10 minutes in 9.330 liters of air at normal pressure. 



Lethal air: CO* 2.8; O* 17.4. 



