[ 37 1 
took one t its nerves appeared in a good 
flate. I coated the fpine, and eftablifhed 
a communication betwixt it and them. 
The movements did not take place. I laid 
bare the nerves of the upper part of the 
thigh, and coated them. My conductor 
now produced ofcillations and tremblings. 
A few moments afterwards, I coated the 
nerves of the other leg at the fame height 
—•I eflayed it—the limb did not move— 
I pa fled the coating lome lines lower 
down—it ftill remained motionlefs—I 
followed the nerve, but the movements 
only took place when the coating was 
brought to the loweft part of the thigh. 
A great number of frogs have been fa- 
crificed tp my experiments; and I have 
conftantly obferved, that when there was 
any refiduum of vitality, by lowering the 
coating, and trying it at the diftance of 
every line, that is to fay, making the 
communication between the coating and 
P 3 the 
