Action of Calbonic Acid 



905 



Experiment DCXIV. Dog weighing 7.7 kilos. Temperature 16°. 



10:30. Placed a tube in the trachea. At 10:45, its rectal temper- 

 ature is 38.2°. 



11:35. Caused to breathe in the bag containing 40 liters of air . . a 



11:43. Took 28 cc. of carotid blood .... A 



12:45. Respiration 60, uneven; pulse 120; temperature 38.1°; took 

 air .... b 



1:50. Took air .... c 



Respiration 40, uneven; pulse 96; the animal is almost insensible. 



2:25. Respiration 36; pulse 

 sensitive. 



2:55. Respiration 30; pulse 



temperature 31°; eye not very 

 double; temperature 29.8°; took 



air . . . . d 



3:23. Took air .... e 



3:25. Respiration 28; pulse 60; temperature 28.8°; took 26 cc. of 

 blood . . . . B 



3:45. Respiration 28; pulse 52; temperature 28.2°; carotid pressure 

 oscillating from 12 to 14 cm.; eye still slightly sensitive. 



4:05. Respiration 20; pulse 44; temperature 27.8°; eye still some- 

 what sensitive; took air . . . . f 



4:37. Eye lacks sensitivity; respiration 20; pulse 43; temperature 

 27°; took air . . . . g 



5:05. Respiration 22; pulse 48; temperature 26°; took air . . . . h 



5:21. Temperature 25.2°. 



5:35. Respiration 4; pulse 40, very weak; temperature 25°; took 

 air .... i 



5:50. Temperature 24.5°. 



5:55. Respiration 3; pulse 36; temperature 24°; took blood from 

 the left heart with the cannula; very red . . . . C 



6:15. Respiration 2; pulse 36; temperature 23.5°; took air . . . . j 



The respirations become more and more rare, then cease some 

 minutes before the heart. The latter ceases at 6:35; temperature 23°. 



6:45. I take blood from the left heart; it is very dark . . . . D 



Also took air from the bag . . . . k 



The sciatic nerve still causes the muscles to contract at 7:25. 



The table below gives the results of the experiment: 





Oxygen 



of the bag 70.5 



C0 2 5.2 



A 

 O- of arterial 



blood — 



CO* 61.8 



Rectal Temp. __38.2° 



Respirations — 



Pulse — 



I b 



d | e | f | g | h | i | j t k 



58.6 | 47.9 

 14.4 | 24.3 



42.7 

 28.6 



39.7 

 30.4 



IB 



37.1 | 34.8 

 32.5 | 33.9 



I I 



34.9 

 33.9 



38.1 



60 



120 



| 29. 

 I 30 



166 



| 18.7 | — 



I 90.5 | — 



| 28.8 | 27.8 | 27 



I 28 | 20 | 20 



| 60 | 44 | 43 



34.2 | 33.7 | 32.5 

 34.2 | 35.4 | 35.4 

 | C D 



I 

 - | 18.2 0.0 

 -| 103.6 106.7 



| 25 | 23.5 | 23 



I 4 |2 |0 

 I 40 | 36 |0 



