162 AFRICA AND ITS EXPLORATION. 
main channel. The western channel was about eight 
yards broad. We observed, after we had returned to 
the bay, that the easternmost channel was about six 
yards broad, and about ten feet deep, but very sluggish. 
We had thus examined each of its three mouths, and 
settled all doubts as to the Rusizi being an effluent or 
BRIDGING A STREAM. 
influent. It was not necessary to ascend higher, there 
being nothing about the river itself to repay exploration 
of it. 
The question, “ Was the Rusizi an effluent or an in- 
fluent ? ” was answered for ever. There was now no 
doubt any more on that point. In size it was not to 
be compared with the Malagarazi River, neither is it, or 
