114 ADDITIONAL NOTES. 



sumed, this being the conclusion to which Messrs. 

 Allen and Pepys were led by their carefully 

 conducted investigations. It has, however, been 

 stated by others, that a portion of oxygen disap- 

 pears beyond that which is replaced by the car- 

 bonic acid, and M. Le Gallois endeavoured to 

 ascertain to what extent this loss of oxygen takes 

 place. The quantity, according to his statement, 

 was so much greater than that which has been 

 found by others, that it is very difficult to avoid 

 the suspicion that there was some error in the 

 observations. However, admitting them to be cor- 

 rect, as (the experiments having been made in the 

 same way, and with the same apparatus), what- 

 ever oxygen was absorbed in his experiments, a 

 corresponding quantity must have been absorbed 

 in mine, and as, according to M. Le Gallois's 

 statements, the proportion of oxygen absorbed by 

 animals respiring naturally, and by those respir- 

 ing artificially, though differing in individual 

 instances, did not, on an average, materially 

 differ from that of the carbonic acid generated, 

 the remarks which I have made as to the latter 

 are equally applicable to the former, so that we 

 are led to no different conclusion. 



It has been seen that, in my last series of 

 experiments, the animals under the influence 

 of artificial respiration cooled somewhat more 



