t «9 I 
and fhook its wing four or five times with 
considerable forcej having irritated them 
in this way, I again tried a filvet con¬ 
ductor, but without effeCt. In the mean 
time, I armed fome other branches which 
were distributed upon the wing, and from 
them obtained the movements by the 
common means. Thefe obstacles ap¬ 
peared to me fo much the more Singular, 
inafmuch as the animal occasionally 
moved its wing, although if would not 
obey the power of the conductor, and 
yet again movements might be induced 
by means of mechanical fiirnuli. 
The ftate of repofe and inertnefs which 
I have been fpeaking of, is not conti¬ 
nual ; for my conductor produced effeds, 
fometimes in a quarter and fometimes in 
half an hour. 
The experiment with the wing Suc¬ 
ceeds, although it is detached from the 
body of the animal. It is necefiary to 
C 2 warn 
