Of some wells the water is sweet enough
for drinking; of others quite brackish. The fertility of the fields and
gardens is in proportion to the quality of the well-water; those
irrigated with brackish water, repay badly the labour of their owners;
the date-trees alone thriving equally well in any place.
In addition to the water of the wells and the aqueduct, the town in
winter time receives a supply from the considerable torrent called Seyl
el Medina, or Seyl Bathan, which flows from S. to N. passing across the
suburbs, and losing itself in a stony valley to the N.W. [All the
neighbouring torrents lose themselves in a low ground in the western
mountains, called El Ghaba, and also El Zaghaba. See Samhoudy.] A heavy
rain for one night will fill its bed, though it usually decreases as
fast
[p.329] as it swells. In that part of the suburb, called El Ambarye, we
find a good arched stone bridge thrown across its banks, where it is
about forty feet in breadth. The neighbouring country abounds with
similar torrents, which fill many ponds and low grounds, where the water
often remains till the summer months: