We call it gravitation; but why does it invariably act thus with mathematical precision ? Who knows ? Behind all such phenomena there is a mystery that none can solve. This cataract has a voice. If we could understand it, per-haps we should distinguish, after all, but one word, - God. As for the gorge through which this river flows, imagine if you can a yawning chasm ten miles long and fifteen hundred feet in depth. Peer into it, and see if you can find the river. Yes, there it lies, one thousand five hundred feet below, a winding path of emerald and alabaster dividing the huge Cañon walls. Seen from the summit, it hardly seems to move; but, in reality, it rages like a captive lion springing at its bars. Scarcely a sound of its fierce fury reaches us; yet, could we stand beside it, a quarter of a mile below, its voice would drown our loudest shouts to one another.

The Cañon From Brink Of Falls.

The Canon From Grand Point.

Attracted to this river innumerable little streams are trickling down the colored cliffs. They are cascades of boiling water, emerging from the awful reservoir of heat which underlies this laboratory of the Infinite. One of them is a geyser, the liquid shaft of which is scarcely visible, yet in reality is one hundred and fifty feet in height. From all these hot additions to its waves the temperature of the river, even a mile or two beyond the cañon, is twenty degrees higher than at its entrance. "Are there not other cañons in the world as large as this ?" it may be asked.

Yes, but none like this. For, see, instead of sullen granite walls, these sides are radiant with color. Age after age, and aeon after aeon, hot water has been spreading over these miles of masonry its variegated sediment, like pigments on an ar-tist's palette. Here, for example, is an expanse of yellow one thousand feet in height. Mingled with this are areas of red, resembling jasper. Beside these is a field of lavender, five hundred feet in length, and soft in hue as the down upon a pigeon's breast. No shade is wanting here except the blue, and God replaces that. It is supplied by the o'erspreading canopy of heaven.

Yet there is no monotony in these hues. Nature, apparently, has passed along this cañon, touching the rocks capriciously; now staining an entire cliff as red as blood, now tingeing a light pinnacle with green, now spreading over the whole face of a mountain a vast Persian rug. Hence both sides of the cañon present successive miles of Oriental tapestry. Moreover, every passing cloud works here almost a miracle; for all the lights and shades that follow one another down this gorge vary its tints as if by magic, and make of it one long kaleidoscope of changing colors.

Down The Cañon From Inspiration Point.

Below The Upper Falls.

Milks Of Colored Cliffs.

Nor are these cliffs less wonderful in form than color. The substance of their tinted rocks is delicate. The rain has, therefore, plowed their faces with a million furrows. The wind has carved them like a sculptor's chisel. The lightning's bolts have splintered them, until, mile after mile, they rise in a bewildering variety of architectural forms. Old castles frown above the maddened stream, a thousand times more grand than any ruins on the Rhine. Their towers are five hundred feet in height. Turrets and battlements, portcullises and drawbridges, rise from the deep ravine, sublime and inaccessible; yet they are still a thousand feet below us! What would be the effect could we survey them from the stream itself, within the gloomy crevice of the cañon ? Only their size convinces us that they are works of Nature, not of Art. Upon their spires we see a score of eagles' nests. The splendid birds leave these at times, and swoop down toward the stream; not in one mighty plunge, but gracefully, in slow, majestic curves, lower and lower, till we can follow them only through a field-glass, as they alight on trees which look to us like shrubs.