Formation and (icneral Features of Ihiwenzori. 



The wateislicd line start iiii;' from the peak to tlie extreme 

 soiitli, the Weismaiin, runs eastward along Mt. Luigi di Savoia, 

 tlien nortliwards over Freshfield's Col and along P^dward Peak 

 and Semper Peak of Mt. Baker. From this point, making 

 a wide lialf-circle, it runs along tlie high ridge of the Bujuku 

 Valley over Scott Elliot's Col, over the peaks of Mt. Stanley 

 and Stuhlmann's C*ol as far as Vittorio Emanuele Peak, then 

 descends along the north-east ridge of Mt. Speke to Cavalli's 

 Col, traverses the summit of the two parallel groups, Eniin and 

 Gessi, crossing Ivoccatl's (\A between them. From Iolanda 

 Peak of Mt. Gessi It follows a south-easterly ridge to tlie 

 grou}) of the Portal Peaks, whence it tm^ns north-east again. 



The most important river basin to the east of the chain 

 is that of the Bujuku Valley, which is surrounded by live 

 mountain groups and is fed by the greater glaciers of Mt. 

 Stanley, Mt. Speke, and Mt. Gessi. The Upper Mobuku 

 Vallev, on the other hand, receives only the waters of the 

 Baker glaciers and of a few little glaciers on the eastern side 

 of Mt. Luigi di Savoia through the Mahoma torrent. Hence 

 the Mobuku Kiver is much smaller than the Bujuku Piver, 

 and Is in realltv a mere affluent of it. It would, therefore, be 

 more geographically correct to name the entire valley Bujuku, 

 even If onlv l)ecause tlie two iiTeater mountains stand at its 

 head as well as Stuhlmann's Col, which is the deepest 

 depression of the whole range and lower tlian Freshfield's 

 Col. The name Mobuku, however, as applied to both river 

 and vallev, has been so widely spread by preceding explorers 

 that H.II.H. did not think fit to change it, in order to 

 avoid confusion in the nomenclature. 



The atmospliei-(^ around Iluwenzori is so misty and so 

 lacking In transparencv, even In fine weather, that the Duke 



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