438 
TRAVELS IN AFRICA. 
Chap. LXXXV. 
standing the danger from the E'fadaye, to allow our- 
selves and the animals a day and a half's repose ; I 
myself being particularly in want of a little rest, as I 
had been suffering a great deal from rheumatism for 
the last few days. In addition to this the well con- 
tained so little water that it required an enormous 
time to water the animals and to fill our skins. The 
vale was pleasantly adorned with a good number of 
fine talha trees, and there was even one isolated diim- 
palm, while of another one nothing but the trunk 
was remaining. Although we had advanced so much 
towards the north, we did not yet feel the slightest 
decrease in the temperature, and the thermometer all 
this time, at two o'clock in the afternoon, constantly 
indicated 109°. 
This is the southern well of the name of 
Mafaras, while the northern spot of the same 
name, where Mr. Yogel made his astronomical ob- 
servation, is about nineteen miles further to the 
north. We did not pass the latter till early in the 
morning of the 26th, when, stretching over an open 
desert flat, a real mirror or " meraye," the exhaus- 
tion of our animals became fully apparent, so that 
just in the very place where a small Tebu cara- 
van, which had preceded us a few days, had left 
behind one of their camels, we also were obliged to 
abandon the camel upon whose strength we had 
hitherto placed our chief reliance. 
About eleven miles beyond the northern well 
Mdfaras, we halted during the heat of the day 
