Several evening hours were spent pleasantly in White's Cave, where the formations, at first dull and leaden, turn to spotless white after one grows accustomed to the dim light of the torches. There are little lakes so utterly transparent that your eye fails to detect the presence of water; stone drapery, hanging in graceful folds, and forming an exquisitely beautiful chamber; petrified fountains, where the water still trickles down and hardens into stone; a honey-combed roof, which is a very perfect counterfeit of art; long rows of stalactites, symmetrically ribbed and fluted, which stretch off in a pleasing colonnade, and other rare specimens of Nature's handiwork in her fantastic moods. Many of them are vast in dimension, though the geologists declare that it requires thirty years to deposit a formation no thicker than a wafer! Well says the German proverb "God is patient because he is eternal."

With another visitor I passed the next day in the Mammoth Cave. "Mat," our sable cicerone, had been acting in the capacity of guide for twenty-five years, and it was estimated that he had walked more than fifty thousand miles under ground. The story is not so improbable when one remembers that the passages of the great cavern are, in the aggregate, upwards of one hundred and fifty miles in length, and that it has two hundred and twenty-six known chambers. The outfit consisted of two lamps for himself and one for each of us. Cans of oil are kept at several interior points; for it is of the last importance that visitors to this labyrinth of darkness should keep their lamps trimmed and burning.

The Mammoth Cave.—Lung Complaints.

The thermometer within stands constantly at fifty-nine Fahrenheit; and the cave "breathes just once a year." Through the winter it takes one long inspiration, and in summer the air rushes steadily outward. Its vast chambers are the lungs of the universe.

In 1845, a number of wood and stone cottages were erected in the cavern, and inhabited by consumptive patients, who believed that the dry atmosphere and equable temperature would prove beneficial. After three or four months their faces were bloodless; the pupils of their sunken eyes dilated until the iris became invisible and the organs appeared black, no matter what their original color. Three patients died in the cave; the others expired soon after leaving it.

Mat gave a vivid description of these invalids flitting about like ghosts—their hollow coughs echoing and reechoing through the cavernous chambers. It must have looked horrible—as if the tomb had oped its ponderous and marble jaws, that its victims might wander about in this subterranean Purgatory. A cemetery would seem cheerful in comparison with such a living entombment. Volunteer medical advice, like a motion to adjourn, is always in order. My own panacea for lung-complaints would be exactly the opposite. Mount a horse or take a carriage, and ride, by easy stages at first, across the great plains to the Rocky Mountains or California, eating and sleeping in the open air. Nature is very kind, if you will trust her fully; and in the atmosphere, which is so dry and pure that fresh meat, cut in strips and hung up, will cure without salting or smoking, and may be carried all over the world, her healing power seems almost boundless.

The walls and roof of the cave were darkened and often hidden by myriads of screeching bats, at this season of the year all hanging torpid by the claws, with heads downward, and unable to fly away, even when subjected to the cruel experiment of being touched by the torches.

Methodist Church.—Fat Man's Misery.

The Methodist Church is a semi-circular chamber, in which a ledge forms the natural pulpit; and logs, brought in when religious service was first performed, fifty years ago, in perfect preservation, yet serve for seats. Methodist itinerants and other clergymen still preach at long intervals. Worship, conducted by the "dim religious light" of tapers, and accompanied by the effect which music always produces in subterranean halls, must be peculiarly impressive. It suggests those early days in the Christian Church, when the hunted followers of Jesus met at midnight in mountain caverns, to blend in song their reverent voices; to hear anew the strange, sweet story of his teachings, his death, and his all-embracing love.