284 THE LAWS OF ORGANIC 



to accomplish, in frequency and feebleness, what it 

 sometimes performs in slowness and energy. 



The causes which have been mentioned as hav- 

 ing the general tendency to determine the blood 

 upon the internal organs, and which alteration is 

 also invariably accompanied by a deteriorated 

 condition of the blood, affect, in the first place, 

 the different viscera with derangements, the con- 

 tinuation or severity of which ultimately gives 

 rise to the various disorganizations observed in 

 the lungs or abdominal organs. 



CCCV. Having briefly investigated the man- 

 ner in which the internal organs are disordered 

 by mental emotions, fatigue of mind or body, or 

 other depressing causes, we are now prepared to 

 understand in what way these derangements are 

 removed by exercise, fresh air, lively society, and 

 other kinds of amusements. Muscular exertion, 

 and the cheerful feelings of the mind, promote 

 the better oxygenation and circulation of the 

 blood. The former equalizes the distribution of 

 the vital fluid, and this change diminishes the 

 proportion existing in the lungs, and the benefi- 

 cial results which follow are in accordance with 

 the principles of the first chapter: the latter 

 improves the inspirator^ or irregular character 

 of the respiration. 



CCCVI. In infancy and childhood, palpita- 

 tion seldom occurs. At this age, every organic 

 function is active ; respiration is more frequent ; 



