248 REMARKS ON TRAVELS 
others had not the opportunity of observing. The rivers 
and rivulets crossed by these travellers, some of which 
flow northwards and fall into the Rio-Nunez^ and others 
south towards the district of Sousou, are distinguished. 
By combining the observations of all the four a complete 
idea may be formed of tlie tract which separates Kakondy 
from the Fouta-Dhialon and the mountains of Timbo.* 
We are indebted to the expedition of M. MoUien for 
some interesting particulars of the unknown parts of the 
Senegambia, and of the plain of the Fouta Dhialon. 
Nothing was wanting to this expedition of discovery but 
mathematical observ^ations^ which it would be unjust to 
require from him who traverses^ for the first time^ un- 
known countries, inhabited by a fanatical population. 
Geography is a great gainer when it can obtain any posi- 
tive information, either respecting the lines travelled over, 
with their bearings, or the relative situation of places, 
and their nomenclature ; or even a view of the impor- 
tance and population of the country, and the state of 
agriculture, commerce and industry. A learned geogra- 
pher, M. Eyries, has shewn the merit of M. Mollien's 
travels, and the acquisitions for which science is indebted 
to him ; it only remains therefore, for me to notice that 
part of his journey, which coincides with that of M. Caillie. 
Both crossed the Fouta-Dhialon, but in different direc- 
tions. The first went from Labe to Timbo the second 
* See further on for v/hat relates to the basins of the dif- 
ferent rivers. 
