FHYSICAL AND LITERARY. 307 



EX PER. V. [Three Trials). 



It being commonly believed that opi- 

 ^m afFe(5ls more the whole member to . 

 which it is applied, than the reft of the 

 body, I put this notion to the tefl: of the 

 following experiment. 



About 5*0 drops of the folutioa were 

 applied on fcraped linen to one of the 

 hind legs of a young frog. After 

 three hours the blood was found to 

 move much flower than natural ; and, 

 foon after, the animal began to be flioofc 

 with convulfions. Within half an ho'ur 

 more, it was violently convulfed and ex- 

 tended, and unable to move from the 

 place where it lay ; and the blood in the 

 veflTelsof the hind feet had loft its motion. 



During the above period, I removed 

 the opium from time to time, and forced 

 the animal to move about, without ob- 

 ferving that it loft the fenfation or mo- 

 tion of the leg to which the opium was 

 applied fooner, or at laft in a greater de- 

 gree, than it did of the other leg. 



REMARK. 



