The Possibility of obtaining, under certain conditions, flowing wells from these sandstones has been brought to my notice by the discovery that in the neighbourhood of El Dêr, on the east side of the depression, flowing water is obtainable from comparatively shallow wells sunk on the crest of the anticlinal fold, which runs north and south through that district, through the red shales to the underlying surface-water sandstone (see section). I am unable to speak positively of the original depth of the ancient wells in this district, but when one of those to the north of El Dêr was taken in hand, cleaned out and cased. flowing water was met with at a depth of 65 metres, below which untouched ground was struck. The flow increased on drilling a few metres into the sandstone rock below, and the bore has now given a fairly steady discharge of about 40 gallons per minute for over twelve months.