902 Experiments 



Experiment DCX. March 12. Dog weighing 9 kilos. Tube in the 

 trachea. 



Femoral artery exposed. 



2:20. Breathes air from the rubber bag, from two to three minutes; 

 respirations very calm; drew 45 cc. of arterial blood .... A and 

 35 cc. of venous blood from the lower vena cava .... A' 



2:55. Caused to breathe mixture with about 90% of oxygen. 



3:10. Drew 45 cc. of arterial blood redder than A .... B 



Drew 35 cc. -of blood from the lower vena cava . . . . B' 



3:20. Air from the bag: Os 81.7; CO, 7.9. 



5:45. 16 respirations, very uneasy; 100 weak heart beats; eye lacks 

 sensitivity; rectal temperature 30°; took venous blood from the lower 

 vena cava at the level of the kidneys . . . . C 



6:35. The air of the bag contains CO, 32.5; O, 55. 



6:45. 12 respirations; pulse 87; rectal temperature 28.5°; took 45 cc. 

 of very red arterial blood . . . . D 



Next drew from the right heart 35 cc. of blood . . . . D' 



Was not dead at 7:30; rectal temperature 28°. O, CO, 



Blood A (air, arterial blood) 22.0 46.7 



Blood A' (air, venous blood) 16.1 57.3 



Blood B (about 83% of O a and 6% of C0 2 , arterial 



blood) l 24.2 54.1 



Blood B' (about 83% of O, and 6% of CO?, 



venous blood) 9.8 70.6 



Blood C (about 60% of O,, venous blood) 6.7 73.1 



Blood D (about O, 53%; CO, 33%, arterial blood) ___18.0 93.8 



Blood D' (about O, 53%; CO? 33%, blood from the 



right heart) 12.3 101.4 



The next day, the animal having died during the night, the stom- 

 ach is much distended by gases which contain 50% of CO? and 5% 

 of oxygen. 



The air of the bag contained O, 50.6; C0 2 34.8; that of the lungs: 

 O, 23.5; CO? 57.7. 



I take 45 cc. of urine from the bladder, and put it into the pump 

 for the extraction of gases, in which there is already a little sulphuric 

 acid diluted and thoroughly cleared of gas. I thus find that 100 cc. 

 of urine contains 106 cc. of carbonic acid. 



Experiment DCXI. April 17. Dog weighing 9 kilos; tube in the 

 trachea. 



11:05. Caused to breathe into the bag containing 28 liters of 

 oxygen. 



No apnea visible. 



11:20. Rectal temperature 37.5°. 



3:05. Eye insensitive; respiratory rate 10; pulse 64, rectal tem- 

 perature 30°. 



3:45. Pulse 51, 6 respirations; 29°. 



4:05. Pulse 48, 1 respiration every 2 minutes. 



4:15. Blood drawn from the right heart, 50 cc, fairly red .... A 



4:40. Pulse 45; respirations every 2 or 3 minutes; temperature 

 27.8°. 



