116 
THE 
CANADIAN 
NATURALIST. 
cackled ''^ BpeKEKsice^ Koa^ Koa^," as vociferously as before. I 
could not help laughing, to think how egregiously I had been 
mistaken. 
F. — They have just awaked from their half year's 
sleep ; and will now nightly serenade us with the same 
delightful sounds, for several weeks to come. Occasionally 
the Bull-frog (R. Pipiens) comes in with his bass^ making 
a deep hollow sound, something like the short bellow of a 
distant bull. These sounds^ with the whistling of the 
lizards, fill the air in the neighbourhood of the marshy places 
the whole night long ; and are very annoying at first, but 
habit soon accustoms the ear to this, as well as to most 
other annoyances of a similar nature. That which is often 
repeated, except absolute pain, ceases to affect us with sen- 
sations either of disgust or pleasure ; and becomes a mere 
matter of course^ so as scarcely to be perceived. 
