That it has been dug out and made by men's hands the lake shows for itself; for almost in the middle of it stand two pyramids, so built that fifty fathoms of each are below and fifty above the water; atop each is a colossal stone figure seated on a throne.

Thus these pyramids are a hundred fathoms high; and a hundred fathoms equal a furlong of six hundred feet, the fathom measuring six feet or four cubits, the foot four spans and the cubit six spans.

The water of the lake is not natural (for the country here is exceedingly arid) but brought by a channel from the Nahr an- Nil [31.1,30.166] (river), AfricaNile; six months it flows into the lake, and six back into the river.

For the six months that it flows out of the lake, the daily take of fish brings a silver talent into the royal treasury, and twenty minae for each day of the flow into the lake.