Strabo remarks, that “the Lake Mœris, by its magnitude and depth, is able to receive the superabundance of water which flows into it at the time of the rise of the river, without overflowing the inhabited and cultivated parts of the province.” This could not be made to accord with M. Linant’s theory, and can only be understood by supposing that the _high_ lands in the Fayûm were reclaimed, and that the flood waters filled the rest of the Fayûm without rising so high as to inundate them. At the same time the area of the lake must have been great to fit it, under this limitation, to receive a sufficient volume to moderate the Nile floods and to be able to return to the Nile a sufficiently large supply to supplement the low Nile discharge in an efficient manner. The figures representing the possible performances of the lake have been given. Diodorus also says, “Accordingly the king dug a canal from the Nile to the basin 10 miles in length and 300 feet in breadth.” This would seem to show that the canal took off from the Nile immediately opposite Lahûn, for, if its mouth had been carried further south up the Nile, its length would have exceeded 10 miles. The breadth of 300 feet equals 91½ metres. This also agrees with the size of the inflow and outflow canals which would have been necessary to discharge the calculated volumes. A canal with bed width 90 metres, depth 8 metres, and water surface slope ¹⁄₂₀₀₀₀, will discharge about 69½ million cubic metres per 24 hours, which agrees with the calculation for the inflow. A canal with bed width of 90 metres, depth 6½ metres, and water surface slope of ¹⁄₂₅₀₀₀, would discharge 34 million cubic metres per 24 hours, which agrees with the calculations for the outflow. Diodorus remarks also that “a little south of Memphis a canal was cut for a lake, brought down in length from the city 40 miles.” This is somewhat obscure, but may mean that a canal 40 miles in length was dug to connect Memphis with the lake. Supposing the canal that fed the lake from the Nile passed Abûsir-el-Malaq as already described, the canal to connect the lake and Memphis would have taken off from the feeder canal at or near Abûsir-el-Malaq. The distance from that point to the modern Bedreshên, the station at which tourists alight for viewing the ruins of Memphis, is 47 miles, and it is quite possible that what was known as Memphis extended several miles to the south, and that the canal was only 40 miles in length between Abûsir-el-Malaq and Memphis. Herodotus states that the lake is six months filling and six months emptying. With the surface level of the lake limited to R.L. 22·50, and with the mouth of the feeder canal near Ashment and the outflow at Kosheshah Escape, such would be the case, for though the lake might be filled during the months of flood to R.L. 22·50, there would still be a flow into the lake for the remainder of the six months to meet loss by evaporation.