OUT INTO THE ATLANTIC. 
517 
to entertain for one moment. We were too poor to 
buy his freedom, and it would have been an injustice to 
employ violence. He was therefore left in captivity. 
I hoped this would have stopped the Wangwana from 
venturing to appropriate the property of such deter- 
mined aborigines ; but on the 24th, after descending 
3 g miles to Kalubu, another man was arrested for theft 
of fowls and cloth. The case was submitted to the 
captains and members of the Expedition, and it was 
explained to them, that if the man’s liberty could be 
purchased, half of the goods were at their disposal ; but 
that if they determined to fight for his release, they 
must give me warning, so that I might move down 
river with those who preferred to be guided by me. 
The captains unanimously condemned him to captivity, 
and their decision was gravely delivered in presence 
of all. 
Just above Kalubu, on the right side of the river, a 
lofty reddish cliff stands, which, upon examination, pre- 
sents many traces of igneous eruptions. From the elbow 
below it are visible the remains of an old cataract, and 
lava is so abundant that it gives quite a volcanic 
appearance to the scene. A lofty ridge south of 
Kalubu strikes towards the north-north-east, and 
formed a notable feature as we descended from Mata 
river. 
Four miles further down brought us, on the 25th, to 
a little cove above Itunzima Falls, where was another 
furious display of the river, and a most dangerous cata- 
ract. Crossing over to the left bank, we succeeded next 
day in passing it, after a laborious toil of eight hours, 
and camped in a beautiful bend below. 
At this camp we first met natives who were acquainted 
with the name Yellala, but they informed us that there 
were several great rapids below Itunzima, upon which I 
finally abandoned the search for “ Tuckey’s Cataract,” 
and instead of it strove to ascertain if any were ac- 
quainted with the name of “ Sangalla.” None of them 
had ever heard of it ; but they knew “ Isangila,” which 
we were informed was about five days’ journey by 
