912 Experiments 



report here the experiments which prove this assertion, from which 

 I shall draw conclusions of another sort when I discuss asphyxia: 



Experiment DCXXIII. March 11. Dog died at 2:20 in a bell filled 

 with air at a pressure of 43 cm. 



At 4 o'clock, 80 gm. of muscle and 30 gm. of kidney are placed in 

 potash solutions. 



March 13. We find, by the procedure described above, that 100 gm. 

 of muscle contain 12 cc. of CO,; 100 gm. of kidney contain 35 cc. 



Experiment DCXXIV. March 5. 7 o'clock. Dog, which died at 6: 15 

 (Experiment DCXXXVIII), asphyxiated in compressed air. 



100 gm. of muscle immersed in 900 cc. of potash solution. 



March 6, 10 o'clock in the morning. These 100 gm. contained 22 

 cc. of CO,. 



Experiment DCXXV. March 7, 5:30. A. Dog which had died at 5 

 o'clock (Experiment DCXXXIX), asphyxiated in compressed air. 



B. Dog killed the day before at 5 o'clock by sectioning of the 

 medulla. 



100 gm. of muscles of each animal are immersed in 500 cc. of 

 potash solution. 



March 8, 3 o'clock. We find that the 100 gm. of A contained 23 

 cc. of CO?, and those of B 19 cc. 



Experiment DCXXV I. March 10, 6 o'clock. Dog which was killed 

 by asphyxia at 5:20 (Experiment DCXL). 



100 gm. of muscle placed in 585 cc. of potash solution. 

 March 11, 5 o'clock. 24.8 cc. of carbonic acid given off. 



In other experiments, in which I analyzed the whole body of 

 sparrows which had died under various circumstances, I obtained 

 results which were quite similar: 



Experiment DCXXVII. April 24. Sparrow which had died during 

 the night at 10 atmospheres of air. 



The next day, the entire body (13 gm.), with the skin removed, 

 is placed in the potash solution (110 cc). 



We find thus that 100 gm. of such an animal would have set free 

 40 cc. of carbonic acid. 



The following experiment is very noteworthy in this connection: 



Experiment DCXXVIII. March 18. Sparrows which died under the 

 following circumstances: 



A died at 6 atmospheres of air (lethal air: 2 16.6; CO, 3.1) 



B died at 34 cm. in superoxygenated air (lethal air: 2 12.9; C0 2 52.4) 



C died in the air (lethal air: O, 4; CO, 14.6) 



D died in the air, at 38 cm. (lethal air: 2 8.2; CO, 11.6) 



These sparrows are immediately skinned, I cut off their heads, 

 feet, and the ends of their wings; the bodies, cut in pieces, weigh 

 from 20 to 22 gm. I place them in similar solutions in similar flasks. 



