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DISCUSSION AND CORRESPONDENCE.
STOMACH STONES.
THOSE who have been interested in two recent papers concerning pebbles found with the
remains of ancient reptiles, may like to read
the following: About fifty years ago, some
dozen or more hogs were enclosed in a pen
which extended into a mill race. The hogs
were fed entirely with ground feed in variety-meal, bran, corn and oats or sweepings-but
no clover, grass or vegetables, so-called. When
slaughtered, there were found in the stomachs
of several of the animals, pebbles enough in
each to fill the two hands of a man, as well
as smaller quantities in some instances. In
these cases, this habit was attributed largely
to the peculiar diet of the pigs.
W. J. BEAL.