Asphyxia 929 



3:05. Drew 33 cc. of blood from the carotid, moderately red ... A 



3:15. Placed a tube in the trachea. 



The respirations become extraordinarily rapid. 



3:20. Respirations 124; temperature 38.5°; drew 33 cc. of blood 

 from the carotid, redder than A .... B 



3:22. Placed the trachea in communication with a rubber bag con- 

 taining 60 liters of air. 



Much struggling; respirations very frequent. 



3:43. Temperature 38°. 



4 o'clock. Respirations 84; pulse 96; took air and 33 cc. of blood, 

 not so red as A .... C and a 



4:05. Very deep respirations, 56 per minute; pulse 96. 



4:15. Temperature 36.5°. 



4:35. Respirations 28; pulse 52, very irregular. 



Temperature 36°. Air from the bag . . . . b 



Cornea sensitive; drew 25 cc. of very dark blood . . . . D 



4:40. Cornea without sensitivity; pupils dilated; respirations 16; 

 pulse too weak to be felt; temperature 35.5°. 



The respirations become slower and slower, and the last takes 

 place at 4:46; there is no convulsion. 



4:48. The heart still pumps a little blood into the carotid, and 

 with a cannula I succeed in extracting 40 cc. of very dark blood from 

 the left heart . . . . E 



Then I take a sample of air from the bag . . . . c 



4:55. I collect under water the gases of the lungs . . . . d 



The urine, treated with sulphuric acid in the pump, gives about 

 15 volumes per 100 of C0 2 . 



Blood A (free air, respiration by natural channel) 2 19.8; C0 2 40.1 

 Blood B (free air, respiration very rapid, by the trachea) 2 21.5; 

 CO 18.3 



Blood C (air a: 2 9.3; CO, 7.0) O2 14.4; CO. 32.0 



Blood D (air b: 2 1.8; CO, 12.0) O. 2.1; C0 2 54.3 



Blood E (lethal air c: O* 1.5; CO. 12.6) O, 1.2; C0 2 42.5 



The air from the lungs d contained; 2 0; C0 2 14.6. 



Experiment DCXL. March 10. Brach-hound, weighing 16 kilos. 



Rectal temperature 39.5°. 



3:15. Placed a tube in the trachea; breathes calmly. 



3:20. Caused to breathe in the bag, which contains 137 liters of 

 air. 



3:23. Respiration calm; drew 33 cc. of blood from the carotid, 

 moderately red .... A 



3:49. Deep respirations, 58; took air from the bag .... a 



3:50. Drew 25 cc. of blood, not so red as A .... B 



4:05. Deep respirations, agitated, 48; temperature 37.8°. 



4:12. Violent struggling; temperature 37.5°. 



4: 15. Air from the bag . . . . b 



4: 16. Respirations ample, 52; drew 25 cc. of blood, considerably 

 less red . . . . C 



4:38. Air from the bag . . . . c 



