XXXVlll 
APPEN D I X. 
points to Tombuctoo, when placed in 16^. Now, as Walet lies in the 
shortest route from Benowm to Tombuctoo, one might infer, of course, that 
it lies also the nearest to the line of direction towards Tombuctoo, of 
any of the places pointed out : and, I confess, I am strongly inclined to 
adopt the highest parallel, on this very account. 
These alone, are the authorities for the position of Tombuctoo, derived 
from Mr. Park's observations and inquiries ; and which differ, as we have 
seen, no more than half a degree in the parallel : that is, from 16°, to i6°-|-. 
The reader may recollect, that these are very far indeed to the southward 
of those assigned to it, by M. D'Anville and myself, in former publica- 
tions ; as we mistook its position so far, as to place it between 19°, and 20°. 
Before I proceed to state the authorities for its position, derived from 
the northern stations, it will be proper to compare the calculation of distance 
made by Mr. Park, with the reports of merchants and travellers ; in order 
finally to deduce the longitude of Tombuctoo from the west; and afford 
a fair ground of comparison, between the authorities from the opposite 
quarters. 
It has appeared that Sego, according to Mr. Park's calculation, falls in 
latitude 14° 10', longitude 2° i' west of Greenwich: and accordingly, the 
direct distance between it and Medina, the capital of WooUi, will be by 
this- account 618 G. miles. Now, the merchants reckon 36 journies 
between them. The daily rate between Fezzan and Egypt having come 
out by construction 16,3* per day, on 53 days, and about i6:|: between 
Morocco and Jarra, on 50 days, I may venture to assume the highest of 
the two rates on 36 days; and this gives about 587, or only 31 short of 
Mr. Park's result. 
Again, between Fort St. Joseph and Tombuctoo, M. D'Anville (Mem. 
Insc. Vol. xxvi. p. 73.} allows 240 French leagues. These are rated at 
2,64 G. miles, or 23^ to a degree, on his scale; consequently there 
results a distance of 634 G. miles. M. Lalande (Afirique, p. 23.} allows 
250 leagues, which give about 660 miles. Ben Ali went from St. Joseph 
to Tombuctoo, by way of Tisheet and Aroan, in forty-eight days. The 
• Strictly 16,292. 
