56 THE LAWS OP ORGANIC 



In this Experiment, as in VIII. galvanism 

 does not appear to have produced any marked 

 effect. The rabbit to which it was applied lost 

 H more than the one in which it was not used, 

 It is necessary to state, that only half of the gal- 

 vanic power of the preceding experiment was 

 employed at the same moment, viz. one trough 

 of 50 plates. This alteration was made from the 

 fear that it might before have acted too ener- 

 getically on the nervous system. 



Among the preceding experiments there is 

 one in which warm air was employed for infla- 

 tion. This circumstance will appear strange, after 

 having alluded to the necessity of imitating the 

 process of nature by such means. But having prov- 

 ed, by a variety of experiments, that the warm 

 air, in every case except one, maintained the tem- 

 perature of the animal from two to three degrees 

 above that of every other, how modified soever 

 the means might be in regard to the latter, I 

 substituted cold air in the place of warm, as it 

 rendered the experiment more easy to the ope- 

 rator, and removed every objection that might 

 afterwards have been brought against the re- 

 sults. 



The following experiments are the only two 

 I shall present in which warm air was used. In 

 the first, I was assisted by my friends Mr 

 CHESTER and Mr HOLROYD. This experiment 



