944 Experiments 



Experiment DCLXI. July 4. Dog. 



Drew 25 cc. of blood from the femoral artery. 



It contains O. 22.1; CO- 36.1. Simultaneously 25 cc. of blood from 

 the right heart. It contains 2 5.5; CO 56.4. 



100 cc. of blood are shaken for 24 hours with pure CO ; (tempera- 

 ture 20°). 



They then contain 127.4 of CO ; . 



Coefficient of solubility at 20°: 91.5. Then, 127.4 — 91.5 = 35.9. 

 Therefore, the salts of the arterial blood are exactly saturated. As for 

 the venous blood, it contains 20.5 volumes of dissolved C0 2 , saturation 

 being perfect. 



Experiment DCLXII. July 9. Dog, digesting, weighing 8 kilos (it 

 dies during the night as a consequence of the hemorrhage). 



Drew from the femoral artery 25 cc. of blood, which contains 

 O, 19.3 and CO,- 38.7 (at 0° and 760 mm.). 



Drew at the same time from the right heart 50 cc. containing CO, 

 49.0. Then 350 cc. of arterial blood are taken and shaken all night 

 with pure C0 2 . 



The next day (temperature 20°), this blood contains 172.1 volumes 

 of CO=. 



The coefficient of solubility of C0 2 at 20° was 91.5; 172.1 — 91.5 = 

 80.6. It results that the arterial blood lacked 41.9 of being chemically 

 saturated with CO., and that the venous blood itself lacked 31.6 cc. 



Experiment DCLXIII. June 26. Large dog; I draw from the ca- 

 rotid 25 cc. of blood, which contains O. 22.6; CO. 42.4. 



Agitation for 18 hours with pure C0 2 . Contains then (tempera- 

 ture 23°) 146.8 volumes of CO?. 



Coefficient of solubility at 23°, about 87; 146.8 — 87 = 59.8. There- 

 fore, for saturation, the bases of the arterial blood lack about 17.4 

 volumes. 



Experiment DCLXIV. July 11. Dog, fasting, weighing 10 kilos. 

 Drew 25 cc. of blood from the femoral artery; it contains 0= 20.0; 

 CO. 40.4. 



100 cc. of the same blood are shaken with twice its volume of pure 

 CO2. The next day (temperature 22°), analysis shows that the blood 

 contains 155.9 volumes. 



Coefficient of solubility at 22° : 90.1. Therefore there are lacking 

 for saturation 25.4 volumes of CO=. 



Experiment DCLXV. July 18. Dog, fasting, weighing 13 kilos. 



Experiment similarly conducted; arterial blood 2 16.7; CO? 36.1. 

 After agitation (40 hours) in CO, contains 147.6 (temperature 20°). 

 Coefficient of solubility at 20° : 91.5. Therefore, lack for saturation 

 of 20 volumes of CO,. 



Experiment DCLXVI. July 22. Dog, fasting, weighing 11 kilos. 

 Arterial blood: O, 24.0; CO. 50.3. 



July 26. After agitation: CO. 167.0 (temperature 22°). 

 Coefficient of solubility at 22°, about 88.5. Therefore, lack for 

 saturation of about 28.2 volumes of CO.. 



