When the great dam at Aswân on the frontier between Upper Egypt and Lower Nubia was built, the Nile valley for some eighty miles southwards was turned into a vast reservoir. The natives were handsomely compensated for the destruction of their houses and the submersion of their land, and their villages were rebuilt on the hillsides at a higher level. The reservoir is full each year from about January to June, while during the remaining months of the year the river resumes its natural level, and the people come down from their lofty dwelling-places to cultivate their small fields, like Mr. and Mrs. Noah from Ararat. Now, however, the dam, having proved so great a success, has been heightened; and in recent years the level of the water in the reservoir has been so increased that the country is flooded for well over a hundred miles. Several ancient buildings and many cemeteries and other remains have gone under the water; and for half the year the country is like a great lake with temples for islands. In order to decide what steps had to be taken to prevent any loss to Egyptology in this respect, the present writer made an elaborate report for the Government in 1906-7; and as a result of this a large sum of money--£60,000 or £70,000--was voted for archæological works. Not only was every temple repaired, strengthened, and thoroughly studied and photographed, but every single cemetery and ancient site was exhaustively excavated. Thus, not a scrap of information was lost to science, and every possible precaution was taken to safeguard the interest of the antiquary. It was early in the summer of 1912 that I paid my last visit to Lower Nubia, on board a P.W.D. steamer; and I should like to record here some unofficial impressions of this very interesting reach of the Nile.