Chapter IV. 



Near Nakitawa, at the entrance of the Mahoma Valley, the 

 ancient moraines of the two valleys meet and unite together. 

 In the corner formed by the meeting of the left moraine of 

 Mahoma with the right moraine of Mobuku lies a little lake, 

 which was visited subsequently by the expedition on their 

 return journey. 



The j^eaks of the Portal group soar up over tlie left side of 

 the valley exactly o}){M)site this camp. The two southernmost 

 of these peaks stand like giant sentries on either side of the 

 entrance of another great valley which liere opens into the 

 Mobuku. 



];rii.i)iX(; sheds, uunda. 



The discovery of this important triliutary valley, over- 

 looked by all the previous explorers, pemiitted the Diike to 

 arrive from the first at certain vital conclusions regarding the 

 position of the peaks. 



122 



