Geography and Ethnology, 269 
the mouth right up to the very sources of the river. A 
mission station established at the extreme limits to 
which the river is navigable, would be at least on the 
borders of the Masai country, and would there be- 
come a centre of influence, which without extrava- 
gance might be expected to reach the very heart of 
the great continent. 
The Ozi, hitherto regarded as the largest river on 
this part of the coast, is much inferior to the Tana. 
As has been pointed out in the course of the narrative, 
it divides itself at Kau into two branches, the one 
taking a northerly and the other a westerly course. 
The first of these branches is called Magogoni, and at 
less than a day's journey terminates in a small lake ; 
the other, Mto wa lyu, runs towards the Tana, and 
ends at no great distance north-west of Charra. It 
was long ere I could believe this, but the testimony 
of the natives was uniform upon this point Buiya 
Dubassat, who knew the country well, said, " It must 
be so, Dunga, I will prove it. If you go from Chaffa, 
in Bararetta, to Balawa or Uitu, you have to cross 
three streams^ the Tana and two arms of the Ozi ; but 
if you go thence a day's march to the north-west, and 
then return in a south-westerly course to Bararetta, you 
only cross one stream, the Tana. How could this 
happen unless you had gone round the heads of the 
other two ?" To this argument I was obliged to 
yield. 
We now propose to give some account of the 
people occupying the country under consideration. 
Of these the Gallas are the most important. Dr. 
Krapf writes of them as the Germans of Africa, 
occupying a position in relation to Africa similar to 
