greatest interest for us just now, because that large bag, which is
the principal part of the instrument, gives you a very exact idea of
your stomach; for in fact it really and truly _is_ a stomach itself, and
moreover, the stomach of an animal whose interior formation resembles
yours very, very much.

And who do you suppose is this audacious animal, which presumes to
have an inside so like that of a pretty little girl? Really, I am half
ashamed to name him, for fear you should be angry with me for doing
so. It is--it is the pig! The resemblance is not exactly a flattering
one to you, perhaps, but we are all alike, and it would be worse than
foolish to grumble at being created as we are. Moreover, there is one
difference; the pig, who thinks of nothing but eating, has a very much
larger stomach than we have, which is some consolation, at any rate.

Place the palm of your right hand on what is called the pit of the
stomach, turning the ends of the fingers towards the heart; your hand
will nearly cover the space usually occupied by the stomach, and you
may figure it to yourself as a rounded and elongated bag, bigger above
than below, making a very decided bend inside as it descends from the
heart downward; something like one of those long French pears, called
"Bon-chretiens," if it were bent in the middle, and the big end of it
were placed next the heart. As for the exact size of the bag, there
is no telling it, for it depends upon circumstances. It is a very
convenient bag in that respect; just such a one as you would like to
have in your frock for a pocket; only there would be a danger of your
being tempted to put too many things into it. For as you fill it, it
expands, and enlarges itself like an indian-rubber ball, which, though
only the size of an egg to begin with, becomes as big as your head if
you blow hard into it. Then, as it gets empty, it recovers itself,