Gases of the Blood 647 



were submerged in water at 37° long enough for a temperature 

 equilibrium to be established. 



1.) Temperature, 11.4°. 



At 760 mm., the blood contains O. 8.1; C0 2 27.6; N 2.0. 



At 9 mm., the blood contains O 5.1; CO 17.5; N 0.1. 



2.) Temperature, 37°. 



At 760 mm., O 7.9; CO 23.9; N 1.2. 



At 407 mm., O 7.1; CO 22.4; N 0.8. 



Experiment CXCIX. March 6. Large hunting dog, in good 

 health; 500 gm. of blood drawn from the carotid, shaken in the air, 

 and filtered through linen. Flask of 2 liters. 



Shaken for a half hour at the pressure of 775 mm. (762 mm. 

 after a deduction of the tension of the water vapor) and at the tem- 

 perature of 15.5°, the blood contained: 2 23.2; CO, 30.2; N 2.4. 



CO 



= 1.30. 



O2 



CO 



At 349 mm.: O a 22.6; CO 27.4; N 1.0. =1.21. 



O 



CO 



At 167 mm.: O 21.5; CO 25.1; N 0.6. =1.12. 



O 



CO 



At 88 mm.: O 20.0; CO 21.0; N 0.4. =1.05. 



O 



Experiment CC. March 12. Dog blood; temperature 12°. Flask of 

 4.330 liters. 



Shaken at 749 mm. (deduction made of the water vapor tension 



CO 



at 12°) contains: Oxygen 23.1; CO, 27.5; N 2.6. =1.18. 



O 



CO= 



At 361 mm.: O 23.0; CO 22.0; N 2.0. = 0.95. 



O^ 



CO2 



At 99 mm.: O 22.3; CO. 18.9; N 0.3. = 0.84. 



O? 



CO^ 



At 53 mm.: O 20.8; CO 15.4; N 0.2. = 0.74. 



o> 



Experiment CCI. May 29. Dog blood; temperature 24°; flask of 

 4.330 liters. 



