"The fair hair'd nymph with every beauty crown'd." While on the spot we seek in vain for those "verdant groves of alders and poplars, the odoriferous cypresses," and for "the meadows clothed in the livery of eternal spring," with which Homer poetically endowed the voluptuous abode of the Siren whose name he has immortalized. The view presented from the top of the hill crowning the location of the Grotto of Calypso is well worth mentioning, overlooking the Bay of Melleha and most of the island of Gozo, with Comino and Malta in the distance. The surface of the surrounding sea is at all times sprinkled with busy fishing craft, pleasure yachts, row-boats, and large hulls freighted with a wealth of merchandise. In the neighborhood of Marsa-el-Forno, there is a stalagmitic cave of a curious and interesting nature, which was discovered so late as 1888. It is mainly situated under a field that lies close to the village church of Sciara. This cave attracts large numbers of visitors to Gozo, and in many respects is quite unique. It is eighty feet in length and sixty wide, and contains a museum of curiosities which are the wonder and admiration of all who behold them. When the cave is lighted by torches or magnesium wire, the effect is extremely beautiful, the thousands of crystalline stalactites suspended from the ceiling reflecting prismatic colors of extraordinary brilliancy. It is indeed a fairy-like grotto, much more worthy as a dwelling for Homer's nymph than the crude and exposed cavern on the shore, already described. To one at all familiar with these caves, which are found in various parts of the world, it is no special marvel. These cavities are formed by the slow process of well-understood chemical action, the active agent being the carbonic acid gas which is held in solution by the rainwater that percolates through the limestone roof of the cave. This acting upon the limestone dissolves and conveys it away in liquid and gaseous forms. Not far from here is a curious natural stone arch on the shore, called Tierka Zerka, that is, the "Azure Window," through which one may look upon the sea as though it were an artificial opening set with clearest glass. It very naturally recalled a somewhat similar freak of nature which occurs on the island of Torghatten, off the coast of Norway, where one gets a sort of telescopic view, through a stone tunnel five hundred feet long, of the blue sea and the islands in range far beyond it.