In Daniel Defoe's A Journal of the Plague Year, what are the most prominent literary/rhetorical devices?

Two
prominent literary devices thatuses in are symbolism and .  Allegory is a
rhetorical device that uses stories or pictures to convey hidden meanings.  Usually the meaning
is a moral or political one.  Symbolism is more or less the same thing.  In A Journal
of the Plague Year Defoe uses the rats as a symbolic stand-in...