Peaks of the Central Group. 



Presently the sun appeared again below these clouds and 

 lit up tlie western sky, the valley, and the vast forest of 

 the Congo, which merged in the intense red of the far-oif 

 horizon. 



On the following morning, Laurent Petigax, Brocherel, and 

 three native porters went back to fetch the loads which had 

 been left on the preceding day on the pass when they came 

 up from Bujongolo. The otliers set out on the march carrying 

 the rest. They skirted the two little lakes at the foot of the 

 slopes of Kiyanja, cutting their way step by step through 

 the dense tangle of senecio and helichrysum. Between 

 the thickets of sempervivum were found specimens of an 

 exceedingly beautiful large flowering hypericum, together 

 with ranunculus, several plants of the cruciferous family, 

 alchemilla, balsam, robbia, etc. The valley was narrow and 

 grim, shut in between steep rocks, dryer than the Mobuku, 

 and showino- manv and clear traces of 2"lacier action at a not 

 very remote period. The whole Ijottom was full of moraine 

 rubbish, mingled with detritus, fallen from Kiyanja. Both 

 lakes are of glacial formation. Under the lower lake lies 

 a frontal moraine forming a dam, with a spur of rounded 

 rock. The two lakes are divided by a rocky transversal 

 ridge covered with detritus. To the north of the upper lake 

 lies another moraine forming a steejD bank, above which a 

 high plain slopes upward. Here the valley widens out about 

 two-thirds of a mile. At the foot of Kiyanja is a long 

 néve, formed l)y avalanches falling over the side. 



The valley is dominattMl ])V the southern peaks of the 

 central group, from wliicli flow down two glaciers, forming- 

 two sources of tlie torrent ; tlie third springs from a glacier 

 of Kivauja. 



175 



