The Exhibition is of large proportions, being about 250 feet each way, but its height ranges only from 5 to 20 feet. Its floor is reached by nine steps. From the centre of the Exhibition the entrance to the Bride's Chamber is on the right. To the left is a broken column, which at one time was sound from the floor to the roof, but which has been fractured apparently by the sinking of the rock on which the stalagmitic portion rests. The separation is slight, and there is a slight departure from the right line. [Illustration: THE BROKEN COLUMN.] THE BROKEN COLUMN. To the eastward are several interesting stalactites. One represents a black fellow's "nulla-nulla," another a lady and child, another the palm of a hand blackened by candle smoke. On the south side is a spacious platform like the stage of a theatre--the front, about 40 feet wide, is supported by two columns. The height is about 18 feet, and across the top is a curtain of formation representing drapery gracefully arranged, with a fringe of little sparkling stalactites. On each side of this is a smaller entrance similarly adorned and as exquisitely beautiful. The floor of the stage is about 15 feet deep, and the curved ceiling about 40 feet from the drop curtain to the floor. This is as it appears at a distance. On nearer approach it is perceived that the pillars are uneven, and marked with formations of various kinds. That which seemed like a stage becomes an irregular cavern, with immense rocks lying about in great disorder. When the Exhibition is illuminated by the magnesium light, some beautiful red and white stalactites are disclosed, glittering like dewdrops in the sunlight, and also some exceedingly pretty stalagmites. This chamber was called "The Exhibition" on account of the variety of its specimens. It contains stalactites and stalagmites, white and coloured--variegated shawls--sombre marble and sparkling rocks, clusters of formation, and elephantine masses of carbonate of lime in shapes which prove how much more subtle than professors of art is Nature herself. At the south end a cave slopes down, and there are boulders and _débris_ stained with iron, as well as other indications of great soakage and percolation. THE JEWEL CASKET.