314* THE LAWS OF ORGANIC 



any two individuals, the effects will necessarily 

 be various. 



CCCLVL Intense emotions of pleasure not 

 unfrequently occasion syncope ; this arises from 

 the balance of the mental powers being disturb- 

 ed by causes that have acted almost exclusively 

 upon that part of our constitution appropriated 

 to sensation. The consequence is promoted by 

 whatever is exquisitely painful or agreeable. The 

 effects of these opposite feelings differ but slight- 

 ly, if at all, in the vividness of their extremes. 



CCCLVII. Syncope is not unfrequently pro- 

 duced by heat, but the general application of this 

 power is not so apt to occasion it as when it is 

 partially employed. When the whole frame is 

 influenced at the same moment, either from ex- 

 ercise or any other means, there is an equality 

 even in the altered circulation which prevents 

 the formation of, or rather does not create that 

 peculiar sensation, the reaction of which, upon 

 the respiratory function, is indispensable to give 

 rise to this affection. When one part of the sys- 

 tem is individually excited, this almost immedi- 

 ately destroys the harmony of the circulating 

 powers, the derangement of which is precursory 

 to mental and corporeal changes connected with 

 the production of syncope. 



CCCLVIIL The general application of cold is 

 rarely or never the cause of syncope, however, 

 not from the reasons which have been assigned 



