1868.] Proceedings of the Asiatic Society. 169 



in having deer-like tails. Like the Nylgai too, they keep in herds 

 away from the bucks, which are found solitary in general. Several 

 of the sportsmen here persist in declaring that they have seen true 

 deer with antlers. The fact is, they have seen koodoo. The very open 

 curve of the horns, especially when they are not very large, makes 

 them look marvellously like antlers at a distance. 



Geology of the road from Senafe to Antalo. 



Camp Antalo, March 29th, 1868. 

 Senafe, as I before mentioned, I think, is on sandstone, upon which 

 a series of trachytes and basalts rest quite unconformably ; the sand- 

 stone itself resting on metamorphics, which occupy all the lower 

 ground and form many of the hills as far as Goona Goona, the first 

 march. Here the sandstone comes in, in force, and continues for the 

 main part of this distance to Attegerat, the 3rd halting place ; trap 

 hills occurring here and there, and a portion of the route being over 

 them. From Attegerat the road passes over sandstone to beyond the 

 Mai Wahiz, the 4th halting place, a high range of trap hills flat 

 at the top, running along the west of the road ; and beyond Mai 

 Wahiz the road descends to a great plain of metamorphics, on the 

 west of the watershed between the Nile tributaries and the salt plain ; 

 for it has been ascertained that the drainage of the Eastern flank of 

 the Abyssinian highlands never reaches the sea, but is intercepted 

 and lost in the great salt tract, below the sea level, which extends 

 from just south of Annesley Bay to near Tajurra. The metamor- 

 phics extend beyond Ad Abaga (the 5th march) until near Dongolo, the 

 6th. Here, after descending a steep hill, a great change takes place. 

 So far all has been simple enough ; metamorphics below, sandstone 

 above them, and trap capping the whole ; the two upper series nearly 

 horizontal, and near Attegerat apparently almost conformable ; and the 

 road passes from one to the other as it ascends and descends. At 

 Dongolo just below the Ghat, sandstone comes in with a strong 

 westerly dip. I had not time to make out whether it was faulted 

 against the metamorphics or deposited in a hollow. Just beyond 

 Dongolo, limestone succeeds, apparently resting on the sandstone, but 

 of this I am extremely doubtful, for near this, sandstone appears to 

 overlie the limestone. This limestone continues for upwards of 60 



