There is said to be ample evidence that the numerous caves of Comino were formerly improved as domestic dwelling-places by the primitive inhabitants. Their partial inaccessibility probably caused them to be used as safe retreats when the group was invaded by a foreign enemy. Where natural caves existed in the early days of our race upon this earth, they were nearly always utilized as shelter for human beings, and doubtless artificial ones were created, it being the readiest mode of obtaining a domestic shelter. The Spanish gipsies of Granada follow this plan even to-day, on the banks of the swift-flowing Darro, not to speak in detail of the numerous cliff-dwellers of Behring Strait, where Asia and America come so nearly together. There is a cave between Comino and Cominetto, the entrance to which is accomplished by boat, not without considerable difficulty. When once within, however, and the eyes become accustomed to the gloom which pervades the place, the cave is found to open out into proportions of considerable magnitude. At the further extremity nature has formed a beautiful little gravelly beach, on which the lazy waves ebb and flow gracefully and softly. Geologists visit this cavern with much interest, as the sides teem with the remains of marine creatures which lived and died in the waters when these islands were gradually undergoing the process of formation. There are scores of smaller caves on Cominetto, and also on Comino. It was in the cavernous formations of the south side of the main island of the Maltese group that Dr. Adams found the interesting animal remains about which he has written so ably. These tokens of past ages, concerning which we have no other record, exist in nearly all parts of the globe. In the Ozark Mountains, near Galena, Missouri, is a cavern larger than the Mammoth Cave of Kentucky, which has been explored for thirty miles in a nearly straight line. In this Missouri cave, bones of prehistoric animals have also been found. It may be said truthfully that there are few places which surpass Malta in antiquarian interest. Gozo is about one fifth the size of the main island which gives the group its name. The circumference of the three islands is a trifle less than one hundred miles. The shores, much worn and still wearing away by the ceaseless action of the waters, give evidence of having been considerably more extended at no distant period of time. Two uninhabited islets, besides Gozo and Malta proper, complete the list of the group; these are Cominetto and Filfla. The first, as its name indicates, nearly joins Comino; the latter, containing the ruins of an ancient stone church, is situated three or four miles from Malta on its southern side. It is a very small islet, being only six hundred yards in circumference. Filfla, from the Arabic word _filfel_, means a peppercorn, and the place is thus called on account of its diminutive size. The name of each inlet, headland, and reef along the coast is Arabic.