64 
ORGANS OF BREATHING, 
is provided with a greater power of filling and puff- 
ing itself with air than almost any other bird. It 
can even force air between its skin and its body, to 
such a degree, that it becomes nearly as light and 
buoyant as a bladder. This buoyancy, however, 
entirely prevents its diving after fish; Nature, there- 
fore, has applied a remedy by giving an extraordinary 
THE GANNET, OR SOLAN-GOOSE. 
force and rapidity of flight, in enabling the creature 
to dart down on a shoal from a great height. This 
velocity is so prodigious, that the force with which it 
