THE ORGANIC SENSES.--Finally, to the sensations mentioned so far must be
added those which come from the internal organs of the body. From the
alimentary canal we get the sensations of _hunger_, _thirst_, and
_nausea_; from the heart, lungs, and organs of sex come numerous
well-defined but unnamed sensations which play an important part in
making up the feeling-tone of our daily lives.
