FHYSIG AL AND LITERARY. 317 



therefore, to determine this queftion fatif" 

 faclorily, it was neceflary to difcover fome 

 other w^y ^^ which the animal could 

 much more quickly be afFedled to a vio-^ 

 lent degree. This I found might be done 

 by pouring 30 drops of the folucion thro' 

 ^ fmall hole into the cavity of the abdor? 



men *. 



{Seven Triali) 



For, in two minutes thereafter, the 

 heart did not beat above half its ufua\ 

 nuniber of times in a minute. And, afr 

 |:er four or five minutes, not above a third 

 part of the ufual nunxber ; and, on esa* 

 mining the foot with the microfcope, I 

 found that the blood in its veflels' had in- 

 tirely ceafed fron^ motion. And now the 

 v^hole mufcles were repeatedly convulfed, 

 and the limbs extended, fo a.s to render 

 the animal unable to move out of the 

 place where it lay. After a quarter of an 



hour, 



• Like to what Drs Langrifh and Whytt had ob- 

 ^rved of lauro-cerafiis and opium on dogs.- 



