considered, would have been 5 m. 60., _i. e._ 17 feet, and the bottom of the lake would thus have been raised by the sediment about 11 feet in its existence of 2,000 years. But if we take for granted that the 11 or 12 feet of black earth were deposited in historical times, the above amounts would be almost double. Thus it may be understood how it is that its usefulness is so much, diminished, for, by the deposit of 11 feet, the lake lost (if we accept Linant’s statement as to its circumference) about 13,000,000,000 square feet of water, which it could formerly contain. Raising the dykes would not, it may be readily understood, have counteracted it, because they had already been put into the proper connection with the point of entrance of the Bahr Jussuf into the Faiûm. This may have been one of the most cogent reasons for the neglect into which Lake Mœris had been permitted to fall, and even if Linant had the Bahr Jussuf turned off much higher from the Nile than the ancient Pharaohs found it good, his daring project of restoring the lake again would not completely succeed. In two hours and a half from this breach, we arrived by El Elâm, where the dam ends, at the remarkable ruins of the two monuments of Biahmu, which Linant considers to be the two pyramids of Mœris and his wife, mentioned by Herodotus as seen in the lake. They are built up of massive blocks; there is yet a heart existing of each of them, but not in the middle of the square rectangles, which appear as if they had been originally quite filled by them. They rose in an angle of 64°, therefore much more steeply than pyramids usually do. Their present height is only twenty-three feet, to which must be added, however, a protruding base of seven feet. A slight excavation convinced me, that the undermost layer of stone, which only reaches four feet below the present surface of the ground, is neither founded upon sand or rock, but upon Nile-earth, by which the high antiquity of this structure is much to be doubted. At least this proved that they did not stand in the Lake, which must have had a considerable bend to the north-west if it included them.