aves that stray,
Felt, but unseen, beyond the violet ray?--
Who, while the storm-wind waits its darkening shroud,
Foretells the tempest ere he sees the cloud,--
Stays not for time his secrets to reveal,
But reads his message ere he breaks the seal.
So Mantua's bard foretold the coming day
Ere Bethlehem's infant in the manger lay;
The promise trusted to a mortal tongue
Found listening ears before the angels sung.
So while his load the creeping pack-horse galled,
While inch by inch the dull canal-boat crawled,
Darwin beheld a Titan from "afar
Drag the slow barge or drive the rapid car,"
That panting giant fed by air and flame,
The mightiest forges task their strength to tame.

Happy the poet! him no tyrant fact
Holds in its clutches to be chained and racked;
Him shall no mouldy document convict,
No stern statistics gravely contradict;
No rival sceptre threats his airy throne;
He rules o'er shadows, but he reigns alone.
Shall I the poet's broad dominion claim
Because you bid me wear his sacred name
For these few moments? Shall I boldly clash
My flint and steel, and by the sudden flash
Read the fair vision which my soul descries
Through the wide pupils of its wondering eyes?
List then awhile; the fifty years have sped;
The third full century's opened scroll is spread,
Blank to all eyes save his who dimly sees
The shadowy future told in words like these.

How strange the prospect to my sight appears,
Changed by the busy hands of fifty years!
Full well I know our ocean-salted Charles,
Filling and emptying through the sands and marls
That wall his restless stream on either bank,
Not all unlovely when the sedges rank
Lend their coarse veil the sable ooze to hide
That bares its blackness with the ebbing tide.
In other shapes to my illumined eyes
Those ragged margins of our stream arise
Through walls of stone the sparkling waters flow,
In clearer depths the golden sunsets glow,
On purer waves the lamps of midnight gleam,
That silver o'er the unpolluted stream.
Along his shores what stately temples rise,
What spires, what turrets, print the shadowed skies!
Our smiling Mother sees her broad domain
Spread its tall roofs along the western plain;
Those blazoned windows' blushing glories tell
Of grateful hearts that loved her long and well;
Yon gilded dome that glitters in the sun
Was Dives' gift,--alas, his only one!
These buttressed walls enshrine a banker's name,
That hallowed chapel hides a miser's shame;
Their