When we came to about 16d 16' S.latitude, the high wooded banks seemed to leave the river, and no more tsetse appeared.

Viewed from the flat, reedy basin in which the river then flowed, the banks seemed prolonged into ridges, of the same wooded character, two or three hundred feet high, and stretched away to the N.N.E.and N.N.W.

until they were twenty or thirty miles apart.

The intervening space, nearly one hundred miles in length, with the Leeambye winding gently near the middle, is the true Barotse valley.

It bears a close resemblance to the valley of the Nile, and is inundated annually, not by rains, but by the Leeambye, exactly as Lower Egypt is flooded by the Nile.