I saw a notice telling of these coals.

It called them "ever-burning": said no skill

Could put them out when once they were alight,

Because they were "the best the world produced."

I purchased some. Ai! ai! They turned out slates.

My household maidens by Prometheus swear

They never saw such stuff for lighting fires.

What of it is not slag, that part is slate,

And slated should they be that sold it me.

Moreover, when with anger I remarked