upon Animal Bodies, 17 



of their ordinary stimuli. The air, by its stimulus up. 

 on the external parts of the system, propels the blood 

 from the surface to the centre, while its stimulus upon 

 the lungs, which is an internal part, propels it to the 

 heart, which again drives it forward through the whole 

 sanguiferous system. From the lungs, as from the 

 skin, those portions of the blood, which, if retained, 

 would become deleterious, are, by the actions of the ves- 

 sels, thrown off in an aerial form, whereby the tempera- 

 ture of the body is uniformly preserved. 



Enough we think has been said to prove, that heat 

 is produced in every part of the living body, and that 

 the lungs are not, therefore, its only source. Herein 

 we cannot but admire the wisdom of nature, which, by 

 one and the same medium, continues vital motion, 

 maintains temperature, promotes circulation, and thus 

 preserves the exercise of the vital functions. 



II. On the Opening of Buboes by Caustic. In a Letter 

 to the Editor, from Dr. Cutjbush. 



Sir, 



IN the course of your practice, many obstinate 

 cases of Buboes have, doubtless, come under your no- 

 tice, which could not be dispersed by the general means 

 in use among surgeons. 



Such cases have frequently occurred to me since I 

 have been in the navy of the United-States ; whether 

 the difficulty of discussing them be owing to the inat-. 



. ol. irr. PART T. 



