Peaks at the Head of Mobuku Valley. 
torrent. Near to the glacier the only plants are arboraceous 
senecio, several yards high. 
A little before the end of the valley the way crosses the 
torrent and mounts a frontal moraine left by the retreating- 
glacier. In this way a projecting rock is reached where 
Grauer had encamped at a height of 13,229 feet above the 
sea, a little below the lower end of the glacier. This was the 
last point where it was possible to light a fire, and during 
the brief halt the porters huddled shivering around the flame. 
The distance from Bujongolo to this point is one hour’s march. 
The way now continued skirting the rock to the right and 
ascending a short chimney closed at the top by a boulder, from 
which still hung one of the ropes placed there by Grauer to 
facilitate the ascent. Thanks to this assistance the obstacle 
was easily surmounted. 
In one more hour’s climb up the rocks the left margin of 
the glacier was reached just above the terminal fall of seracs. 
Here the way skirted the glacier for a bit, and then proceeded 
again to climb the rock wall over a difficult passage, which 
the porters would have been unable to negotiate without the 
assistance of the guides. Their bare feet slipped continually 
upon the smooth steep moss-grown slabs of rock, or got 
wounded on their edges and sharp points. At last the Duke 
gave up the idea of bringing them further and sent them 
back to Bujongolo. 
A short traverse led back to the glacier at the foot of a 
rocky projection. The Duke had wished to encamp on the top 
of the ridge so as to be there at the following dawn when 
there was greater chance of a clear sky. But hardly had 
they reached the glacier before a dense fog enveloped the 
party and shut out everything from their sight. It was 
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