114 degrees Fahr. in
the shade under the water-skins; 137 degrees in the sun.
Noiselessly the spongy tread of the camels crept along the
sand--the only sound was the rattle of some loosely secured
baggage of their packs. The Arab camel-drivers followed silently
at intervals, and hour by hour we struck deeper into the solitude
of the Nubian desert.
We entered a dead level plain of orange-coloured sand, surrounded
by pyramidical hills: the surface was strewn with objects
resembling cannon shot and grape of all sizes from a 32-pounder
downwards--the spot looked like the old battle-field of some
infernal region; rocks glowing with heat--not a vestige of
vegetation--barren, withering desolation.--The slow rocking step
of the camels was most irksome, and despite the heat, I
dismounted to examine the Satanic bombs and cannon shot. Many of
them were as perfectly round as though cast in a mould, others
were egg-shaped, and all were hollow. With some difficulty I
broke them, and found them to contain a bright red sand: they
were, in fact, volcanic bombs that had been formed by the
ejection of molten lava to a great height from active volcanoes;
these had become globular in falling, and, having cooled before
they reached the earth, they retained their forms as hard
spherical bodies, precisely resembling cannon shot.
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