MERGE TO GYRENE. 
493 
liar to the hyaena, who not only walks away very slowly when 
advanced upon, but appears at the same time to have a limping 
motion, as if he were lame of one leg. The hyaena most commonly 
seen in the north of Africa is that which is striped in the back, black 
and grey ; its paws are scarcely more formidable than those of a large 
dog, but its teeth and neck are very strong, and there is no animal 
fiercer when wounded or closely attacked. 
We arrived at Apollonia late in the evening, and set out early 
the next morning, to find the spring which was said to exist in a 
neighbouring ravine. We followed the course of the aqueduct 
mentioned above, which appeared to us to finish at the mouth of the 
wady ; but our companion, Shekh Aadam, pointed out to us a spot 
where it was continued over the hill and along the side of the preci- 
pice: this w^as probably done to avoid the rush of water which 
thunders down the vallies after rain, and brings with it large stones, 
trunks of trees, and other matters, sweeping everything before them 
in their course. As the aqueduct was constructed of stone, and 
covered over apparently with the same materials, besides being coated 
in the inside (or water-course) with cement, there does not seem to 
be any objection to its having been carried out of the level. We pro- 
ceeded up the ravine nearly a mile and a half, and then came to a 
stream of water issuing out of the rock at some distance above, 
which descended in little cascades and was lost in the bed of the 
wady. The sides of this ravine are nearly perpendicular, and about 
five hundred feet in height : near the top we observed two caves, 
situated as those were which have already been described ; and had 
