Last, the Prussian trumpet blew;

Thro’ the long-tormented air

Heaven flash’d a sudden jubilant ray,

And down we swept and charged and overthrew.

So great a soldier taught us there,

What long-enduring hearts could do

In that world’s earthquake, Waterloo!”

The best expression in it, the last, is borrowed from Byron’s wonderful description of the same battle:

“Stop! for thy tread is on an Empire’s dust!

An Earthquake’s spoil is sepulchred below!”