f 3X } 
Infants and delicate women of great 
mobility and fenfibility, with perfons fub- 
jeCt to hyfterical and nervous affeCtions, 
would perhaps be very proper fubjeCts for 
this fpecies of refearch. 
The movements excited in frogs by the 
methods juft mentioned, are not in pro¬ 
portion to the vigour of the animal. 
Some of them, although very lively, have 
not always been proper for experiment. 
The will of the animal has perhaps the 
power of preventing the paflage of the 
electrical fluid from one part to another, 
or of deftroying its effeCts. 
The animal frequently fuffers thefe dif- 
charges and movements, without appear¬ 
ing to be affeCted by them; fometimes 
one has fcarcely touched the coating with 
the conductor, before it becomes as it 
were ftupified, and w'hen fet at liberty, 
moves forwards very llowly, or remains 
motionlefs, although pulhed and irritated. 
This 
