XLVII.

ANIMALS UNDER GROUND.

HORSES IN MINES.—EFFECT OF AN EVEN TEMPERATURE ON HORSES AND MULES.—EFFECT OF DEPRIVATION OF LIGHT.—WALKING IN DARKNESS.—RATS IN MINES.—A MONKEY IN A SILVER MINE.—THE CONSTERNATION HE CREATED.—WHAT HE WAS SUPPOSED TO BE.—HIS UNHAPPY FATE.—A MONKEY AT SEA.—HIS PRANKS.—DEMOCRATIC HABITS.—HOW HE LOST HIS LIFE.—HIS LAST PERFORMANCE.—DOGS IN MINES, AND THE EFFECT OF UNDERGROUND CONFINEMENT.—JOY AT REACHING DAYLIGHT AGAIN.—TWO DOGS AT SEA, AND WHAT THEY DID.—A DOG SAILOR, AND WHAT HE DID.—HIS UNHAPPY END. 686