Looking down from this lofty eminence through the cañon below the falls, the scene is full of grandeur. The descent of the river for more than a mile is marked by continuous cascades varying in height from five to twenty feet, and huge rapids breaking over the rocks, and lashing with foam the precipitous sides of the gorge. A similar descent through the entire cañon (thirty miles), is probable, as in no other way except by distinct cataracts of enormous height can the difference in altitude between this point and its outlet be explained. The colors of the rock, which is shaly in character, are variegated with yellow, gray and brown, and the action of the water in its rapid passage down the sides of the cañon has worn the fragments of shale into countless capricious forms. Jets of steam issue from the sides of the cañon at frequent intervals, marking the presence of thermal springs and active volcanic forces. The evidence of a recession of the river through the cañon is designated by the ridges apparent on its sides, and it is not improbable that at no distant day the lower fall will become blended by this process with the upper, forming a single cataract nearly five hundred feet in height. There are but few places where the sides of the Grand cañon can be descended with safety. Hauser and Stickney made the descent at a point where the river was 1,050 feet below the edge of the cañon, as determined by triangulation by Mr. Hauser. Lieutenant Doane, accompanied by his orderly, went down the river several miles, and following down the bed of a lateral stream reached its junction with the Yellowstone at a point where the cañon was about 1,500 feet in depth--the surface of the ground rising the farther he went down the river. Mr. Hedges and I sat on the table-rock to which I have referred, opposite the upper fall, as long as our limited time would permit; and as we reluctantly left it and climbed to the top, I expressed my regret at leaving so fascinating a spot, quoting the familiar line: "A thing of beauty is a joy forever." Mr. Hedges asked me who was the author of the line, but I could not tell. I will look it up on my return.[I] Yes! This stupendous display of nature's handiwork will be to me "a joy forever." It lingers in my memory like the faintly defined outlines of a dream. I can scarcely realize that in the unbroken solitude of this majestic range of rocks, away from civilization and almost inaccessible to human approach, the Almighty has placed so many of the most wonderful and magnificent objects of His creation, and that I am to be one of the few first to bring them to the notice of the world. Truly has it been said, that we live to learn how little may be known, and of what we see, how much surpasses comprehension.