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and welded together into a great bony and
membranous box. This is wholly errugular [im]
centrical contour; this seems to act as a
reverbative chamber to increase the vollume
of the [souard]. It is chiefly developed in the male.
the windings of the wind pipe are still more
remarkable, very generally in cranes and swans
the wind pipe enters the keal of the sternum
which is excavated to receive it and where it
forms one or more coils before emerging to
pass to the lungs it reaches the extreme in the,
Whooping Crane, where the trachea is about
as long as the whole bird and about one half of
it (over two feet of it is coiled away within
the breast bone). In the [grirnie] fowl a loop of
the trached is received in a cup by the
apex of the clavical.

The larnyx of birds merely modulates
the sound already produced in the lower
end of the tube at its bifurcation, this is
called syrinx; it is the voice organs of birds
and contains vocal cords and other
essentials.