rson alone_.

MONOMA'NIA (Gr. n. _ma'nia_, madness), _madness confined to one subject_.

MONOP'OLY (Gr. v. pol'ein, to sell), _the sole power of selling anything_.

MONOSYL'LABLE, _a word of one syllable_.

MON'OTHEISM (Gr. n. _the'os_, God), _the belief in the existence of only
one God_.

MON'OTONE, _uniformity of tone_.

MONOT'ONY, _sameness of sound; want of variety_.

19. O'DE, _a song_.

ODE, _a lyric poem_.

MEL'ODY (Gr. n. _mel'os_, a song), _an agreeable succession of musical
sounds_.

PAR'ODY, _the alteration of the works of an author to another subject_.

PROS'ODY, _the study of versification_.

PSAL'MODY, _the practice of singing psalms_.

TRAG'EDY (Gr. n. _trag'os_, a goat[9]), _a dramatic representation of a sad
or calamitous event_.

EXERCISE.

The _periods_ of _astronomy_ go far beyond any _chronology_. The
_phonograph_ and the _telegraph_ are both American inventions. By the aid
of a _diagram_ the _problem_ was readily solved. Dr. Holmes, the _Autocrat_
of the Breakfast Table, has written many _parodies_. In the struggle
between _monarchy_ and _democracy_ Mexico has often been in a state of
_anarchy_. His _antagonist_ suffered great _agony_ from the _disaster_ that
occurred. The _eulogy_ pronounced on the great _zooelogist_ Agassiz was well
deserved. What is the _etymological_ distinction between _geography_ and
_geology_? The _aeronaut_ took with him a _barometer_, a _thermometer_, and
a _chronometer_. I owe you an _apology_ for not better knowing your
_genealogy. Typography_ has been well called "the art preservative of all
the arts." Who is called the great American _lexicographer? Tautology_ is
to be avoided by all who make any pretence to _grammar_. One may be a
_democrat_ without being a _demagogue_. You cannot be an _architect_
without knowing _geometry. Zoology_ shows that there is great _symmetry_ in
the structure of animals. The pretensions of _astrology_ are now dissipated
into thin _air_. Many persons skilled in _physiology_ do not believe in
hydropathy. Longfellow's "Evangeline" is written in _hexameter_, and
Milton's "Paradise Lost" in _pentameter_.

20. ON'OMA, _a name_.

ANON'YMOUS, _without a name_.

METON'YMY, _a rhetorical figure in which one word is put for another_.

ON'OMATOPOE'IA, _the forming of words whose sound suggests the sense_.

PARON'YMOUS, _of like derivation_.

PATRONYM'IC (Gr. n. _pat'er_, a father), _a name derived from a parent or
ancesto