n many places was covered with a substance
like the rime of a frosty morning; it tastes like salt, and from it they
get nitre. Captain B. thinks it was salt. The water which we drank was
brought from Ghafsa: the Bey drinks water brought from Tunis. We marched
across a vast plain, covered with the salt just mentioned, which was
congealed in shining heaps around bushes or tufts of grass, and among
which also scampered a few hares. We encamped at a place called
Ghorbatah. Close to the camp was a small shallow stream, on each side of
which grew many canes; we bathed in the stream, and felt much refreshed.
The evening was pleasantly cool, like a summer evening in England, and
reminded us of the dear land of our birth. Numerous plains in North
Africa are covered with saline and nitrous efflorescence; to the
presence of these minerals is owing the inexhaustible fertility of the
soil, which hardly ever receives any manure, only a little stubble being
occasionally burnt.

We saw flights of the getah, and of another bird called the gedur,
nearly the same, but rather lighter in colour. When they rise from the
ground, they make a curious noise, something like a partridge. We were
unusually surprised by a flight of locusts, not unlike grasshoppers, of
about two inches long, and of a reddish colour. Saw also gazelles.
Halted by the dry bed of a river, called Furfouwy. A pool supplied the
camp: in the mountains, at a distance, there was, however, a delicious
spring, a stream of liquid pearls in these thirsty lands! A bird called
mokha appeared now and then; it is about the size of a nightingale, and
of a white light-brown colour. We seldom heard such sweet notes as this
bird possesses. Its flying is beautifully novel and curious; it runs on
the ground, and now and then stops and rises about fifteen feet from the
surface, giving, as it ascends, two or three short slow whistles, when
it opens its graceful tail and darts down to the ground, uttering
another series of melodious whistles, but much quicker than when it
rises.

We continued our march over nearly the same sort of country, but all was
now flat as far as the eye could see, the hills being left behind us.
About eight miles from Furfouwy, we came to a large patch of date-trees,
watered by many springs, but all of them hot. Under the grateful shade
of the lofty palm were flowers and fruits in commingled sweetness and
beauty. Here was the village of Dra-el-Hammah, surrounded, like