AND ANIMAL LIFE. 429 



one time depressed and at another stimulated. It 

 would seem that the nervous system occupied a 

 prominent place in the minds of those who en- 

 deavoured to explain the series of consequences, 

 as they frequently speak of sympathy being exert- 

 ed between different parts of the system. 



DXXV. In the two experiments performed 

 to elucidate the operation of emetics, the pulse 

 invariably became small and weak in the stage 

 of nausea, and when this was very severe, it was 

 almost imperceptible ; it would also appear that 

 the animal heat is equally affected by those causes 

 that diminish the force and increase the frequen- 

 cy of the pulse. In my own case, after vomit- 

 ing, the thermometer rose from 98 to 100i, and 

 in Mr BUCHAN'S from 96 to 99. 



JDXXVI. The perspiration which follows vo- 

 miting has been attributed, by almost all writers 

 on the subject, to a particular sympathy existing 

 between the skin and the stomach, or between 

 certain internal organs. Dr CULLEN observes, 

 " Thus we are of opinion, that there is a special 

 consent between the stomach and the vessels on 

 the surface of the body, so that the several states 

 of these are mutually communicated to one an- 

 other ; whence the action of vomiting excites 

 particularly the action of the vessels on the sur- 

 face of the body." 



A more modern, and a highly distinguished 

 author, remarks, " The feeble state of the circu- 



