226 
TEAVELS IN CENTEAL AEEICA. 
inform me that there is a considerable stream within well-defined 
banks,, winding northwards. This stream they have repeatedly 
crossed in the wet and dry seasons ; it is not fordable,, but passable 
only in canoes. It is called the Nam. Crocodiles and hippopotami 
abound in it. Three days^ march west of Neangara the natives 
have constructed a neat wooden bridge of fabulous lengthy guarded 
with rails on either side,, across the same stream,, known to them 
as the Yalo. 
The district as far westward as the Nam is called Agar, and forms 
part of the extensive Rhol territory. The population, of Dinka 
extraction, make exclusive use of that language. West of the Nam 
is the Rohl proper, and a narrow district, occupied by the Djour, 
divides it from the extensive possessions of the Dor, traversed by 
me in the years 1853 to 1858, and described in my work entitled 
Egypt, the Soudan, and Central Africa.^^ Their arms not having 
been pictured in that work, I annex a few sketches thereof, con- 
sisting of spears, bows and arrows, and peculiarly carved clubs of 
ebony wood. 
What the population might amount to is difficult to surmise. 
My numerous informants assert that the country is thickly inha- 
bited, and that the negroes, on the report of danger, appear in 
numbers with as little warning as a swarm of bees. They are re- 
puted by the men at the station to be treacherous and cowards in 
fight : they will collect in numbers, make a great noise, worry their 
enemy by continuous shouting, day and night ; seldom attack 
openly, but remain in ambush, taking advantage of circumstances, 
and generally close under cover of the night. 
They are considerable cattle holders, and cultivate grain to a 
greater extent than the tribes hitherto passed. Their relations 
with the surrounding tribes, whether of the same race or not, are 
