appearances that mimic the shapes of men, and even of friends or
comrades. This is a case much dwelt on by the old travellers, and which
throws a gloom over the spirits of all Bedouins, and of every cafila or
caravan. We all know what a sensation of loneliness or 'eeriness' (to
use an expressive term of the ballad poetry) arises to any small party
assembling in a single room of a vast desolate mansion: how the timid
among them fancy continually that they hear some remote door opening,
or trace the sound of suppressed footsteps from some distant staircase.
Such is the feeling in the desert, even in the midst of the caravan.
The mighty solitude is seen: the dread silence is anticipated which
will succeed to this brief transit of men, camels, and horses. Awe
prevails even in the midst of society: but, if the traveller should
loiter behind from fatigue, or be so imprudent as to ramble aside--
should he from any cause once lose sight of his party, it is held that
his chance is small of recovering their traces. And why? Not chiefly
from the want of footmarks where the wind effaces all impressions in
half an hour, or of eyemarks where all is one blank ocean of sand, but
much more from the sounds or the visual appearances which are supposed
to beset and to seduce all insulated wanderers.

Everybody knows the superstitions of the ancients about the
_Nympholeptoi_, or those who had seen Pan. But far more awful and
gloomy are the existing superstitions, throughout Asia and Africa, as
to the perils of those who are phantom-haunted in the wilderness. The
old Venetian traveller Marco Polo states them well: he speaks, indeed,
of the Eastern or Tartar deserts; the steppes which stretch from
European Russia to the footsteps of the Chinese throne; but exactly the
same creed prevails amongst the Arabs, from Bagdad to Suez and Cairo--
from Rosetta to Tunis--Tunis to Timbuctoo or Mequinez. 'If, during the
daytime,' says he, 'any person should remain behind until the caravan