One more example may suffice. Go with me to the Sandwich Islands, and we shall get an impressive glimpse of the principal agency by which the earth's crust has been ridged, furrowed, and dislocated. As we land upon Hawaii, we perceive it to be composed mainly of lava of no very ancient date. We ascend a lofty _plateau_, and many a league in advance of us we see a column of smoke rising from a vast plain. Directing our course thither, while yet some miles from it, we descend a steep slope to a broad terrace, and then another slope to a second terrace. These slopes and terraces extend circularly around the pillar of smoke like the seats of a vast amphitheatre.
Coming near to this column, our steps are arrested on the margin of a vast gulf, fifteen hundred feet deep, and from eight to ten miles in circumference, whose bottom is the seat of the most remarkable volcano on the globe;--I mean Kilauea. Wait here till night closes around us, and we shall witness a scene of awful sublimity. Over the immense area of that gulf will the volcanic agency beneath be exerted. Ever and anon, and mingling in strange discord, will hissings and groanings, mutterings and thunderings, be heard rolling from side to side, and making the earth tremble around. Then from one and another volcanic cone--perhaps from fifty--will the glowing lava burst forth; red-hot stones will be driven furiously upward; vapor, and smoke, and flames will be poured out, and the dark and jagged sides of that vast furnace will glow with unearthly splendor; and here and there will lakes of liquid lava appear, one or two miles in extent, heaving up their billows, and dashing their fiery spray high into the air. O, there is not on earth a livelier emblem of the world of despair; and yet we know it is not the lake which burneth with fire and brimstone, nor the abode of lost spirits. We know it to be only one of the safety-valves of our globe, and an exhibition of that mighty agency within the globe which has heaved and dislocated its crust; and, therefore, as we gaze upon the scene, and forget our fatigue and sleep, we experience only the emotions of awful sublimity, which can hardly fail to rise into adoration of that infinite Being who can say, even to this agency, Thus far shalt thou go, and no farther.