MINERAL POISONS. 99 



When the injection is made into the stomach of 

 a dead rabbit, precisely the same effects are pro- 

 duced, except that, as the middle contraction is 

 here wanting, the appearances are not confined 

 in the same degree to the cardiac portion. 



EXPERIMENT IX. 



A scruple of corrosive sublimate, dissolved in 

 six drachms of distilled water, was injected into 

 the stomach of a full-grown cat. For the first 

 five minutes no symptoms were produced. After 

 this, the poison operated twice as an emetic. 

 The animal was restless and excited, then gra- 

 dually became insensible, and lay on one side 

 motionless, with the pupils of the eyes dilated. 

 The respiration was laborious, and the pulse 

 could not be felt. Twenty-five minutes after the 

 poison had been injected, there was a convulsive 

 action of the voluntary muscles, and death imme- 

 diately ensued. On opening the thorax imme- 

 diately afterwards, the heart was seen still con- 

 tracting, but very feebly. 



The stomach was found perfectly empty and 

 contracted. The mucous membrane was every 

 where of a dark grey colour. It had lost 

 its natural texture, and was readily torn and 

 separated from the muscular coat. The internal 

 membrane of the duodenum had a similar ap- 

 pearance, but in a less degree, for nearly three 

 inches from the pylorus. In the situation of 



H 2 



