176 A NATURALIST IN MID-AFRICA. 



The Central Watershed rocks are not by any 

 means so interesting as those of Buwenzori. It 

 gives me a great deal of pleasure to record that 

 Speke, with that extraordinary power of seeing 

 all that was of importance and setting it forth 

 without additions, practically said as much as is 

 required with regard to them. These hills begin 

 close to Kiarutanga, and extend along the southern 

 side of the Buizi river, by Antari's hill, and round 

 the corner of the mountains behind Kitoboko to 

 the point where the Kagera issues from them, not 

 far from my camp at Butunguru. They then keep 

 on the south side of the alluvial plains of the 

 Kagera until they appear to again approach it not 

 far south of Kitangule. They extend, therefore, 

 over the whole of Karagwe and a large portion 

 of Ankole. On the northern and eastern side they 

 approach the alluvial and volcanic rocks of the 

 Albert Edward, and I entered them before 

 Kubata's on my way south. They are apparently 

 interrupted near Latoma, where the watershed 

 between the Kufui river, which is said to enter 

 the Albert Edward Nyanza, is not more than 300 

 feet above the Kagera valley level ; and from this 

 point they probably proceed southwards till they 

 reach the chain of volcanoes, of which the active 

 volcano, Kissigali, and Mfumbiro are the most 

 prominent members. They then turn south and 

 appear to follow the east shore of Tanganyika ; 

 forming the watershed between the latter and 



