L 162 
J 
Experiment CXXIX. 
After feven or eight minutes had eJapfed, 
the fame quantity did not occafion any 
motion. 
Experiment CXXX. 
The electricity was increafed fo as to 
produce a divergence of feven lines. A 
very feeble contraction was obferved to 
take place. 
Experiment CXXXT. 
Ten minutes after the wing was de¬ 
tached from the body, and placed upon 
an ifolated plain. The plexus was 
coated with a piece of tin-foil. The wing 
flapped with force in a manner natural to 
the animal, on the application of a filver 
conductor to the coating and mufcles. 
With artificial eleCtricity which diverged 
the balls nine lines, no effeCt was produced, 
Experi- 
