906 Experiments 



Experiment DCXV. March 26. Temperature 14°. Mastiff, very 

 sturdy, weighing 16 kilos. 



At 11 o'clock, placed a wide tube in the trachea: the animal 

 struggles, breathes with very great rapidity, then falls, after a series 

 of unusual hasty respirations, into a state of complete apnea which 

 lasts a minute. 



11:25. Caused to breathe into a bag containing 60 liters of super- 

 oxygenated air .... a 



Immediately shows a slight apnea which lasts 15 seconds; tem- 

 perature 37.6°. 



11:40. Took 25 cc. of very red blood A 



11:57. 21 deep respirations; pulse 152; temperature 37.3°. 



12:30. The animal has been struggling for a quarter of an hour; 

 took air .... b 



12:35. Temperature 35.8°; urine; took very red blood . . . . B 



12:45. Respiration 43; pulse 100; temperature 35°. 



12:50. Arterial pressure varies between 13 cm. and 15 cm. 



1 o'clock. Respiration 40; pulse 92; temperature 33.8°. 



1:34. Respiration 38; pulse 88; temperature 32.2°; took air .... c 



1:40. Arterial pressure varies from 14 cm. to 16 cm. 



2:05. Respiration 36; pulse 72; temperature 31.2°; took blood . . . C 



The animal is unfastened; the ends of his toes can be squeezed 

 and his skin cut, without causing the slightest sign of pain, the slight- 

 est movement, the slightest change in respiratory rhythm. However, 

 the eye is sensitive. 



2:30. Respiration 28; Pulse 60; temperature 30.8°; took sample 

 of air . . . . d 



3 o'clock. Respiration 24; pulse 56; temperature 30°. 

 3:15. Eye lacks sensitivity; took sample of air . . . . e 



3:18. Respiration 20; pulse 48; temperature 29.5°; drew 25 cc. of 

 carotid blood, very red . . . . D 



3:30. Arterial pressure varies from 12 cm. to 14 cm. with occa- 

 sional extremes of 11 and 15 cm. 



4 o'clock. Respiration 16; pulse 32; temperature 28.5°; took sample 

 of air .... f 



4: 10. Took 25 cc. of very red blood . . . . E 



4:30. Respiration 8; pulse 28; temperature 28°. 



4:45. Respiration 8; pulse 28; temperature 28°; pressure of 8 to 

 10 cm.; took sample of air . . . . g 



5:15. The animal has just stopped breathing; its last respiratory 

 movements were recorded by the pneumograph (See Fig. 78) ; tem- 

 perature 27°; the heart is still beating a little; however, blood has to 

 be drawn by a cannula . . . . F 



Took air from the bag . . . . h 



6:30. There is still a little muscular contraction after very strong 

 stimulation of the sciatic; nothing at 7 o'clock; duration of about 1 

 hour and 20 minutes. 



At 11:45 and 3:45, I took arterial blood and boiled it with sulfate 

 of soda and charcoal to test for sugar; there were only traces of it. 



The summarizing table follows. 



