182 ORGANS OF HEARING. 
I made a quiet, not loud, but distinct noise: the 
antenna nearest to me immediately moved towards 
me. I repeated the noise at least a dozen times, 
and it was followed every time by the same motion 
of that organ; till at length the insect, being alarmed, 
became more agitated and violent in its motions. 
In this instance it could not be touch ; since the an- 
tenna was not applied to a surface, but directed 
towards the quarter from which the sound came, as 
if to listen. It is necessary, however, to remark, 
that there is a want of precision in these experi- 
ments, as no precautions are mentioned to have been 
taken to hide the cause of the noise from the eyes 
of the insect.” * 
“ Tt is important to remark, with regard to this 
inquiry, that no effect is likely to be produced upon 
insects by sounds unconnected with their habits ;+ 
for even the timid hare will scarcely bend its ear to 
the clang of a peal of bells, or the beat of a drum, 
while the bark of a lapdog would put it to imme- 
diate flight ; and though a flock of rooks, as we have 
frequently remarked, will feed unalarmed during a 
violent thunder-storm, the report of a fowling-piece, 
though ever so distant, or even of a boy’s pop-gun, 
will instantly rouse them. The same holds with 
respect to insects ; and accordingly the quick-eared 
grashoppers, locusts, and crickets, will not pay any 
* Introduction to Entomology, vol. iv. p. 242. 
+ Huber on Bees, p. 285. 
