IN CENTRAL AFRICA. 313 
From the whole discussion^ it results, first, that the 
different lines of route forming the itinerary map have 
been subjected to divers conditions resulting from the 
journal of the traveller, from anterior observations and 
from good geographical data ; secondly, that the hour's 
journeys, estimated at three English miles, mean measure, 
between Kakondy and Galia or Djenne, are a little in- 
creased between Kakondy and Time, in consequence of 
the position of Timbo ; thirdly, that, from Djenne to 
Timbuctoo and thence to Fez, the average of two miles 
an hour has been a little modified by the real difference 
in latitude of the two extremities. I have now only to 
speak of the bearings and measure of the lines of march. 
