SUBSTANCES ACTING ON THE BODY HEAT. 529 

 SYNOPSIS OF SUBSTANCES ACTING ON THE BODY HEAT. 



CHAPTER XV. 



THERAPEUTICAL PROCESSES CONNECTED WITH THE SURFACE OF 

 THE BODY. 



THE surface of the body is of great interest and importance to 

 the therapeutist, because it is the region of objective im- 

 pressions, where influences of every kind may be brought in 

 contact with nerves and vessels, and through them with the 

 nervous centres, the circulation generally, and indeed the 

 entire system. The measures applied to this part appear at 

 first sight to be very simple, but their action is, on the contrary, 

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