The third Pyramid, built by Menkara, who reigned 63 years, is much smaller than the other two, and has also two sepulchral chambers, both in the solid rock. The lower chamber, which held a sarcophagus of rectangular shape of whinstone, had a pointed roof, cut like an arch inside; but the cedar coffin, in shape of a mummy, had been removed to the upper or large apartment, and its contents there rifled. Amongst the debris of the coffin and in the chambers were found the legs and part of the trunk of a body with linen wrapper, supposed by some to belong to the monarch, but by others to an Arab, on account of the anchylosed right knee. This body and fragments of the coffin were brought to the British Museum; but the stone sarcophagus was unfortunately lost off Carthagena, by the sinking of the vessel in which it was being transported to England. There are six other Pyramids of inferior size and interest at Gizeh; one at Abou Rouash, which is ruined, but of large dimensions; another at Zowyet El Arrian, still more ruined; another at Reegah, a spot in the vicinity of Abooseer, also much dilapidated, and built for the monarch User-en-Ra, by some supposed to be Busiris. There are five of these monuments at Abooseer, one with a name supposed to be that of a monarch of the Third Dynasty; and another with that of the king Sahura. A group of eleven Pyramids remains at Sakkara, and five other Pyramids are at Dashour, the northernmost of which, built of brick, is supposed to be that of the king Asychis of Herodotus, and has a name of a king apparently about the Twelfth Dynasty. Others are at Meydoon and Illahoon, Biahmo and Medinat El Fyoum, apparently the sepulchres of the last kings of the Twelfth Dynasty. In Nubia, the ancient Æthiopia, are several Pyramids, the tombs of the monarchs of Meroë and of some of the Ethiopian conquerors of Egypt. They are taller in proportion to their base than the Egyptian Pyramids, and generally have a sepulchral hall, or propylon, with sculptures, which faces the east. The principal groups of these Pyramids are at Bege Rauie, or Begromi, 17° N. lat., in one of which, gold rings and other objects of late art, resembling that of the Ptolemaic period, were found. The numerous Pyramids of Mexico are of vast size and importance, but their purpose is not yet fully ascertained. Completely covered as they are with dense vegetation, filled with venomous reptiles, they are difficult to investigate, but they were evidently much the same in shape and structure as the Egyptian, and their entrances were richly sculptured.