AND ANIMAL LIFE. 425 



ment, the nature of this action. In this under- 

 taking I was kindly assisted by my friend Mr 

 BUCHAN of Devenport. 



DXX. I was induced to try the effects of 

 emetics for the purpose of ascertaining clearly the 

 state of the circulation during nausea and after 

 vomiting, and also of noting the alterations which 

 these produced upon the temperature of the body. 

 I took four grains of emetic tartar, dissolved in 

 seven or eight ounces of water. At the com- 

 mencement of the experiment the temperature 

 of the room was 59|, the pulse 77, full, and of 

 good strength : the heat of the body was 97. 

 In the space of half an hour I felt slightly sick, 

 but did not experience the least dullness or ri- 

 gor. To facilitate, if possible, the progress of 

 nausea, I took, in a very short period, between 

 three and four pints of warm water. This quan- 

 tity of liquid quickly brought on, to a trifling 

 extent, the unpleasant sensations of sickness ; but, 

 before these became painfully disagreeable, vomit- 

 ing was occasioned, but lasted only for a few se- 

 conds. After the copious ejection of the watery 

 contents of the stomach, the pulse was 100, very 

 weak and small, and the temperature of the 

 body had risen to 100g. In fifteen minutes after 

 the evacuation of the contents of the stomach, the 

 pulse was found to be 80 in a minute, small, but not 

 weak, and the temperature of the body was 99. 

 In an hour and a quarter from the commence- 



