To the left of Mary's Vineyard, is an inclosure like an arbor, the ceiling and sides of which are studded with snow-white crystallized gypsum, in the form of all sorts of flowers. It is impossible to convey an idea of the exquisite beauty and infinite variety of these delicate formations. In some places, roses and lilies seem cut on the rock, in bas-relief; in others, a graceful bell rises on a long stalk, so slender that it bends at a breath. One is an admirable imitation of Indian corn in tassel, the silky fibres as fine and flexile as can be imagined; another is a group of ostrich plumes, so downy that a zephyr waves it. In some nooks were little parks of trees, in others, gracefully curled leaves like the Acanthus, rose from the very bosom of the rock. Near this room is the Snow Chamber, the roof and sides of which are covered with particles of brilliant white gypsum, as if snowballs had been dashed all over the walls. In another apartment the crystals are all in the form of rosettes. In another, called Rebecca's Garland, the flowers have all arranged themselves into wreaths. Each seems to have a style of formations peculiar to itself, though of infinite variety. Days might be spent in these superb grottoes, without becoming familiar with half their hidden glories. One could imagine that some antediluvian giant had here imprisoned some fair daughter of earth, and then in pity for her loneliness, had employed fairies to deck her bowers with all the splendor of earth and ocean. Like poor Amy Robsart, in the solitary halls of Cumnor. Bengal Lights, kindled in these beautiful retreats, produce an effect more gorgeous than any theatrical representation of fairyland; but they smoke the pure white incrustations, and the guide is therefore very properly reluctant to have them used. The reflection from the shining walls is so strong, that lamplight is quite sufficient. Moreover, these wonderful formations need to be examined slowly and in detail. The universal glitter of the Lights is worthless in comparison. From Rebecca's Garland you come into a vast hall, of great height, covered with shining drops of gypsum, like oozing water petrified. In the centre is a large rock, four feet high, and level at top, round which several hundred people can sit conveniently. This is called Cornelia's Table, and is frequently used for parties to dine upon. In this hall, and in Wellington's Gallery, are deposits of fibrous gypsum, snow-white, dry, and resembling asbestos. Geologists, who sometimes take up their abode in the cave for weeks, and other travellers who choose to remain over night, find this a very pleasant and comfortable bed.