Perchance was on the blast,

When, through this Height's inverted arch,

Rome's earliest legion passed![CW]

—They saw, adventurously impelled,

And older[280] eyes than theirs beheld,

This[281] block—and yon, whose church-like frame

Gives to this[282] savage Pass its name.[CX]

Aspiring Road! that lov'st to hide

Thy daring in a vapoury bourn,

Not seldom may the hour return