JUPITER TERRACE, MAMMOTH HOT SPRINGS.—This is a particularly fine view of this celebrated curiosity. The reflection of light and shade is admirable, and affords a good idea of the dazzling splendor of the formation when viewed in the light of the sun. We can but stand mute and dumb with admiration in the presence of such marvelous creations of Nature. No art can paint or imitate them. They are Nature’s own product, and stand unsurpassed even in human imagination. ] ------------------------------------------------------------------------ [Illustration: IN THE BELT VALLEY, NEAR GREAT FALLS.] On the brink of this infernal pit, distributed over a considerable space, were transparent pools of water of the most brilliant hues, indigo, orange, carmine and emerald, down in whose depths are queer formations of petrifying algæ, and bubbles that look like pearls. Near this beautifully colored and transparent spring is Mud Geyser, a basin full of mush, that lazily sputters as though it were hung over a slow fire, awaiting the spoon of a tardy diner. There is another mud volcano near Sulphur Mountain, the crater of which is thirty feet deep and twenty-five feet in diameter, and which is in a state of constant ebullition, throwing up great quantities of mud and steam to a height of 200 feet, and at times shaking the mountain with its terrible convulsions. Great as were the wonders which we saw in Norris Basin, it proved to be only the threshold of the colossal, the overpowering, the awful sights which we were yet to behold.