388 
GEOGRAPHICAL SYSTEMS 
To the east of Gana, Wangara rests entirely up- 
on the authority of the Arabians. Their descrip- 
tion of Cauga agrees very well with the notices of 
Horneman and Browne, so ably combined by Ma- 
jor Rennell. * But the space which fills up the 
interval between Cauga and the Nile, is involved 
in considerable obscurity ; nor does it appear to me 
that it has been very correctly understood by mo- 
dern geographers. 
Among all the states in this part of Africa, Ku- 
ku is represented, by the Arabian writers, to have 
held a high pre-eminence ; nor does any other 
appear to have rivalled it in power and splen- 
dour. According to our present maps, Kuku oc- 
cupies a tract quite unexplored by modern travel- 
lers, between the north of Bornou and the part of 
Nubia which borders on Egypt. In this case, it 
would remain a very important discovery yet to be 
made. The position, however, thus assigned to it, 
seems to me wholly incompatible with the data of 
Edrisi, which are as follow :■ — From Gana to Cauga, 
gives nearly a month and a half's journey east ; 
from Cauga to Kuku, twenty days' north ;v3* om 
Kuku to Gana, a month and a half. The triangle 
is thus completed j and, in attempting its construe-, ^ 
tion, it will appear that Kuku is both placed too far 
north, and also, that, instead of being north-east 
r -I. 1 ■ 
* Illustrations of Horneman, ch. 3. 
