See the breach indented there:

Ere we run the fusion in,

Halt—and speed the pious prayer!

Pull the bung out—

See around and about

What vapour, what vapour—God help us!—has risen?—

Ha! the flame like a torrent leaps forth from its prison!

What, friend, is like the might of fire

When man can watch and wield the ire?

Whate'er we shape or work, we owe