360 
APPENDIX. 
From this line, which is winding, and which, as it runs north, 
curves towards the west, the country is mountainous for the space 
of ten degrees from east to west ; it rises in parallel terraces, and 
forms chains which increase in height in proportion as they advance 
to the south, or as they approach the seventh degree of west longi- 
tude ; they become lower further to the east ; they attain their 
greatest known elevation between the eighth and tenth degree of 
north latitude; it was a little above the latter that M. Mollien disco- 
vered the sources of the rivers, which he was instructed to explore. 
The declivity of this mountainous country is generally steeper to the 
east than to the w^est, as we learn from the travels of Mungo Park, 
and also in the southern than in the northern part ; we do not know 
its extent to the south, one of its terraces, however, ends on the 
coast at Sierra Leone, and the declivity on the western side is consi- 
derable to the south of the tenth degree. The whole of this elevated 
country abounds in metals, especially in iron and gold. The courses 
of the rivers are often obstructed by ridges of rocks, which occasion 
cataracts ; perhaps more considerable falls might also be found there. 
Mungo Park, having generally proceeded parallel to the 
equator, crossed the rivers which flow from these chains of moun- 
tains ; not having seen their sources he was obliged on this point to 
refer to the accounts given him by the inhabitants of the country ; 
consequently he placed these sources in the following manner : 
that of the Ba Fing, the middle branch of the Senegal, in 10" north 
latitude, and 6° 40 west longitude (9" west of Paris) ; that of the 
Falemein 11° 25' north latitude, and 8° 10' west longitude (10° 30 
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