892 Experiments 



the animal tries to rise using its front feet; its eyes are no longer wild. 



At 4:30, use of oxygen discontinued. The animal is quite recov- 

 ered in regard to respiration and heart. 



But it is still paralyzed, or at least cannot stand up on its feet, 

 although it moves its limbs and head spontaneously. 



Found dead the next day. No gas in the heart or the vessels. 



Experiment DXC. November 12. Dog of Experiment DXLV. 



3:12. Decompressed from IV4 atmospheres, paralyzed, with loud 

 gurgles in the heart, and great respiratory difficulties. 



3:20. We begin administering pure oxygen. 



3:35. The respirations are very deep and frequent; there are no 

 sounds of heart gurgles. The animal makes general movements, and 

 tries to take off the muzzle with its paws. 



The respirations become regular for a certain time, then they 

 decrease in intensity, and about 4:30, it is clear that the animal is 

 becoming exhausted and is going to die. 



It is opened at 4:45, when about dead. No gas in the veins or 

 heart. 



Experiment DXCI. November 25. Bitch of Experiment DXLVII. 



Decompressed from 7% atmospheres, paralyzed at 3:23, gurgles, 

 lack of sensitivity, etc. 



3:28. Since the respiration has stopped, we are obliged to give 

 artificial respiration with oxygen. After 6 to 7 artificial respirations, 

 spontaneous movements return, the heart begins to beat distinctly, 

 the gurgles diminish, insensibility disappears. 



But at this moment the supply of oxygen fails and we cannot 

 continue the experiment; the animal dies almost immediately after- 

 wards. 



We find the right heart much distended with blood, with only a 

 little foam. 



Experiment DXCII. November 27. Dog of Experiment DXLVIII. 



Paralyzed, very loud gurgles, decompressed from 7 atmospheres. 

 At the moment when oxygen inhalation has begun, the heart gurgles 

 seem to increase a little, then the heart almost completely ceases to 

 beat; gradually it becomes quite strong and frequent. But gas does 

 not cease escaping from the upper end of the jugular vein, which 

 has been exposed, and the animal dies after a half-hour. 



Blood very red, and without gas in the left heart; blood fairly 

 red with tiny bubbles in the right heart. 



Experiment DXCIII. December 6. Dog of Experiment DL. 



Decompressed from IV2 atmospheres at 3:22. Immediately para- 

 plegic, front legs a little stiffened, but pulling back when pinched; 

 hind legs stiff and insensible; very loud gurgles. 



I give oxygen inhalations and expose its jugular vein, which is 

 full of gas. 



Immediately the respirations grow regular; little by little the gas 

 bubbles become smaller in the jugular, sensitivity returns a little to 

 the hind legs; the animal is evidently better. 



