'Not at home!' meaning, 'Not in order to see!'

About John Bells, one of whom, we know,

Politicians rung not long ago;

An unlucky Bell, and to-day a wreck,

But fit, even now, to be wrung—by the neck!

About Isabelles, so diverse in kind,

That the one you prefer isn't hard to find;

Yet hard 'tis to be in this all agreed—

Isabelle by name is a belle in-deed!

And thus, as I sat in my easy-chair,