Gases of the Blood 



637 



Experiment CXCI. October 15. Female dog weighing 13 kilos. 

 Breathing free air; respirations, 20; pulse, 148; rectal temperature, 

 39.8°. 



2:50; Drew 25 cc. of blood from peripheral end of jugular vein. A' 



2:55; 25 cc. from carotid artery .... A 



3 o'clock; Forced to breathe from a rubber bag containing 130 

 liters of air, through the double potash valves; the animal is very 

 calm although it struggled considerably at the beginning of the 

 experiment. 



4 o'clock; 25 cc. of arterial blood . . . . B 



4:12; 16 respirations; pulse, 86; temperature, 37.4°. 



4:15; 25 cc. of venous blood . . . B' 



Air from the bag . . . . b 



Animal very quiet. 



5:15; 25 cc. of venous blood . . . . C 



Air from the bag . . . . c 



Respirations, 16; pulse, 92; temperature, 36°. 



6:10; 25 cc. of venous blood . . . . D' 



Air from the bag . . . . d 



Respirations, 16; pulse, 96; temperature, 35.5°. 



7:10; 25 cc. of arterial blood . . . . E 



25 cc. of venous blood . . . . E' 



Air from the bag . . . . e 



Respirations, 16; pulse, 100; temperature, 35.1°. 



Death comes at 8:45; temperature 33°. 



An accident prevents making an analysis of the blood. 



The air of the bag contains per 100 O 4.9; CO; 1.2. 



Experiment CXCII. November 13. Dog weighing 16 kilos. Breath- 

 ing free air; temperature 38.5°. 



2:45; Took 30 cc. of carotid blood .... A 



2:54; Took 30 cc. of blood from the peripheral end of the jugular 

 vein .... A' 



2:56; We begin to force the dog to breathe from the bag containing 

 130 liters of air through the potash valves. 



3:40; Rectal temperature 38°. 



3:53; The animal is much hampered in its breathing, and has been 

 struggling for a few minutes. Took 30 cc. of venous blood . . . . B' 



4:05; Took 30 cc. of arterial blood . . . . B 



Air from the bag . . . . b 



4: 15; Rectal temperature 36°. 



