Behold, O man! nor shrink aghast in fear!
Survey the vortex boiling deep before thee!
The Hand that ope'd the liquid gateway here
Hath set the beauteous bow of promise o'er thee!

Here, in the hollow of that Mighty Hand,
Which holds the basin of the tidal ocean,
Let not the jarring of the spray-washed strand
Disturb the orisons of pure devotion.

Roll on, Niagara! great River King!
Beneath thy sceptre all earth's rulers, mortal,
Bow reverently; and bards shall ever sing
The matchless grandeur of thy peerless portal!

I hear, Niagara, in this grand strain,
His voice, who speaks in flood, in flame and thunder—
Forever mayst thou, singing, roll and reign—
Earth's grand, sublime, supreme, supernal wonder.

Such lines as these—which might be many times multiplied—recall Eugene Thayer's ingenious and highly poetic paper on "The Music of Niagara."[89] Indeed, many of the prose writers, as well as the versifiers, have found their best tribute to Niagara inspired by the mere sound of falling waters.

That Niagara's supreme appeal to the emotions is not through the eye but through the ear, finds a striking illustration in "Thoughts on Niagara," a poem of about eighty lines written prior to 1854 by Michael McGuire, a blind man.[90] Here was one whose only impressions of the cataract came through senses other than that of sight. As is usual with the blind, he uses phrases that imply consciousness of light; yet to him, as to other poets whose devotional natures respond to this exhibition of natural laws, all the phenomena merge in "the voice of God":

I stood where swift Niagara pours its flood
Into the darksome caverns where it falls,
And heard its voice, as voice of God, proclaim
The power of Him, who let it on its course
Commence, with the green earth's first creation;

And I was where the atmosphere shed tears,
As giving back the drops the waters wept,
On reaching that great sepulchre of floods,—
Or bringing from above the bow of God,
To plant its beauties in the pearly spray.

And as I stood and heard, though seeing nought,
Sad thoughts took deep possession of my mind,
And rude imagination venturing forth,
Did toil to pencil, though in vain, that scene,
Which, in its every feature, spoke of God.

The poem, which as a whole is far above commonplace, develops a pathetic prayer for sight; and employs much exalted imagery attuned to the central idea that here Omnipotence speaks without ceasing; here is