Thus majestically wrote Mrs. Sigourney of this matchless cataract of Niagara:

"Flow on forever in thy glorious robe

Of terror and of beauty. Yea, flow on,

Unfathomed and resistless. God hath set

His rainbow on thy forehead, and the cloud

Mantled around thy feet. And He doth give

Thy voice of thunder power to speak of Him

Eternally—bidding the lip of man

Keep silence, and upon thine altar pour

Incense of awe-struck praise. Earth fears to lift