182 REPORTS OF DANGER GEOLOGY. 
nierstoii by the courier ; and should have written 
much more, had not I been occupied with the news 
and with the Kailouees, who have chosen this occa- 
sion to be troublesome. We do not get so much 
information, by the way, out of these people as we 
might expect ; they do not know the names of the 
wadys and rocks hereabouts, and so pretend they 
have none. 
The hundred dollars which we brought from 
Mourzuk are now nearly all gone — I have only 
eight or ten left. Friend Sidi Jalef Waled Saker- 
taf — how unmusical the name sounds! — will get 
little money from us, and must content himself with 
our baggage, if he will play the robber. For the 
cousin of a Sultan, fie! 
August i. — We left Ajunjer early, and made five 
hours only, because to-morrow there is no herbage 
until late in the evening. How tantalising to be 
obliged to advance thus by short stages towards an 
ambuscade ! We take things pretty philosophically, 
however, and make geological observations. Over- 
weg (who begins to show signs of weakness) is de- 
lighted that we have at length reached a region of 
granite. I think I must have passed a great num- 
ber of rocks of the same kind between Ghadamez 
and Ghat. To the eye of an ordinary observer, 
some of them have the same aspect as sandstone, or 
even limestone. This granite interests us, especially 
as in the direct Bornou route there appears to be 
none at all. 
