to colonnades, and from the colonnades to other rooms, and then from the chambers again to other courts. Over the whole of these is a roof made of stone like the walls; and the walls are covered with figures carved upon them, each court being surrounded with pillars of white stone fitted together most perfectly; and at the end of the labyrinth, by the corner of it, there is a pyramid of forty fathoms, upon which large figures are carved, and to this there is a way made under ground. 149. Such is this labyrinth; but a cause for marvel even greater than this is afforded by the lake, which is called the lake of Moiris, along the side of which this labyrinth is built. The measure of its circuit is three thousand six hundred furlongs 131 (being sixty schoines), and this is the same number of furlongs as the extent of Egypt itself along the sea. The lake lies extended lengthwise from North to South, and in depth where it is deepest it is fifty fathoms. That this lake is artificial and formed by digging is self-evident, for about in the middle of the lake stand two pyramids, each rising above the water to a height of fifty fathoms, the part which is built below the water being of just the same height; and upon each is placed a colossal statue of stone sitting upon a chair. Thus the pyramids are a hundred fathoms high; and these hundred fathoms are equal to a furlong of six hundred feet, the fathom being measured as six feet or four cubits, the feet being four palms each, and the cubits six. The water in the lake does not come from the place where it is, for the country there is very deficient in water, but it has been brought thither from the Nile by a canal: and for six months the water flows into the lake, and for six months out into the Nile again; and whenever it flows out, then for the six months it brings into the royal treasury a talent of silver a day from the fish which are caught, and twenty pounds 132 when the water comes in.