Underline an example of alliteration and explain how this is an example of alliteration.

excerpt from "the things that matter” by e. nesbit

now that i've nearly done my days,
and grown too stiff to sweep or sew,
i sit and think, till i'm amaze,
about what lots of things i know:
things as i've found out one by one-
and when i'm fast down in the clay,
my knowing things and how they're done
will all be lost and thrown away.