294 
SAVAGE SUDAN 
(v) “ Hell’s Gate ” 
The Nilotic landscape in these regions has, as already 
indicated, completely changed its character. Level 
marsh and low-lying forest have given place to an 
environment of rocky mountains. Giant boulders stud 
the river sides and even project into the unaccustomed 
“ Balancing ’’—(Marabou). 
Wing-expanse, 103 \ inches ; weight, 13 lb. 
stream. The change rejoices eyes wearied by 1000 miles 
of irksome monotony; but it adds a new peril to naviga¬ 
tion. Hitherto we had freely and carelessly bumped up 
against papyrus-barriers, or “cannoned” off marsh-girt 
banks. With rock, that expedient is dangerous. 
This fact was vividly impressed by an incident that 
occurred above Mongalla, at a point ominously known as 
