As I was sitting in my room, on the first floor, about nine P.M. (4th
of October last), I was surprised with what I supposed to be the notes
of a bird, under or upon the sill of a window. My impression was, that
they somewhat resembled the notes of a wild duck in its nocturnal
flight, and, at times, the twitter of a redbreast, in quick
succession. To be satisfied on the subject, I carefully removed the
shutter, and, to my surprise, found it was a garden snail, which, in
drawing itself along the glass, had produced sounds similar to those
elicited from the musical glasses.--_Ibid_.
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