312 REMARKS ON TRAVELS 
agree ; it is the same with the sixty-four days from Tim- 
buctoo to Morzouk. Fewer than twenty eight journeys 
are reckoned from Houssa to Timbuctoo, according to 
the itinerary of Mohammed Ebn-Foul^ this distance is 
too short on our map^ and on all the others, even those 
in Clapperton's travels. There are, besides, other reasons 
for believing that there may be two towns or countries 
called Houssa*. 
I do not compare with the map the distance reckoned 
between Timbuctoo and the town of Tafilet, because 
M. Caillie heard no mention of a town so called : he af- 
firms that none such exists, in which case it is not pos- 
sible to make use of this distance. 
I shall add in conclusion of this discussion, that 
nothing can authorise us to depart from the observations 
of latitude taken by Mungo Park, at Yamina and Sami, 
namely, 13° 15' and 13^* 17', and to remove these points 
much further to the south, as M. Brue has done upon his 
map, otherwise so rich in details and nomenclature. The 
determination which I propose for the latitude of Timbuc- 
too agrees better with these observations, the only ones 
we possess in this direction as far as Timbuctoo. 
* In his letter dated from Timbuctoo, Major Laing speaks of a 
distance of fifteen days' journeys between Sego and Timbuctoo ; I find 
upon the map about three hundred and fifty-four miles in a direct 
line ; the days' journeys are of twenty four miles, or those of a light 
caravan. 
