Then—the varnish well dried—urge the biting again,
But how long at its meal the eau forte may remain,
Time and practice alone can determine:
But of course not so long that the Mountain, and Mill,
The rude Bridge, and the Figures, whatever you will,
Are as black as the spots on your ermine.
It is true, none the less, that a dark-looking scrap,
With a sort of Blackheath, and Black Forest, mayhap,
Is consider'd as rather Rembrandty;
And that very black cattle and very black sheep,