In the present state of our knowledge it is impossible to say which of these classes is the older. We know that the Egyptians buried in caves long before the Etruscans landed in Italy, and at the same time raised pyramids over rock-cut and built chambers. We know too that Abraham was buried in the Cave of Machpelah in Syria. On the other hand, the tombs at Smyrna (Woodcut No. 113), the treasuries of Mycenæ (Woodcut No. 124), the sepulchre of Alyattes (Woodcut No. 115), and many others, are proofs of the antiquity of the tumuli, which are found all over Europe and Asia, and appear to have existed from the earliest ages. The comparative antiquity of the different kinds of tombs being thus doubtful, it will be sufficient for the purposes of the present work to classify them architecturally. It may probably be assumed, with safety, that all the modes which have been enumerated were practised by the Etruscans at a period very slightly subsequent to their migration into Italy. Of the first class of the rock-cut tombs—those with merely a façade externally—the most remarkable group is that at Castel d’Asso. At this place there is a perpendicular cliff with hundreds of these tombs ranged along its face, like houses in a street. A similar arrangement is found in Egypt at Benihasan, at Petra, and Cyrene, and around all the more ancient cities of Asia Minor. In Etruria they generally consist of one chamber lighted by the doorway only. Their internal arrangement appears to be an imitation of a dwelling chamber, with furniture, like the apartment itself, cut out of the rock. Externally they have little or no pretension to architectural decoration. It is true that some tombs are found adorned with frontispieces of a debased Doric or Ionic order; but these were executed at a much later period and under Roman domination, and cannot therefore be taken as specimens of Etruscan art, but rather of that corruption of style sure to arise from a conquered people trying to imitate the arts of their rulers. [Illustration: 168. Tombs at Castel d’Asso. (From the ‘Annale del Instituto.’)] The general appearance of the second class of rock-cut tombs will be understood from the woodcut (No. 168), representing two monuments at Castel d’Asso. Unfortunately neither is complete, nor is there any complete example known to exist of this class. Perhaps the apex was added structurally and that these, like all such things in Etruria, have perished. Possibly, if cut in the rock, the terminals were slender carved ornaments, and therefore liable to injury. They are usually restored by antiquaries in the shape of rectilinear pyramids, but so far as I know, there is no authority for this. On the contrary, it is more in accordance with what we know of the style and its affinities to suppose that the termination of these monuments, even if added in masonry, was curvilinear. [Illustration: 169. Mouldings from Tombs at Castel d’Asso.]