258 
ANALYSIS OF THE MAPS 
ART. II. 
MAP OF THE TRAVELLER'S ROUTE. 
GENERAL OBSERVATION. 
Before entering, in somewhat minute detail upon 
the examination of M. Caillie's routes, I should make 
an observation to warn the reader against the appa- 
rent differences which he may observe between the journal 
of the travels and the map of the route. To render this 
journal fit for perusal, and not to interrupt perpetually the 
description of places and people, it has been found neces- 
sary to retrench the number of distances and bearings, to 
such an extent that any one who should attempt to form 
a plan of the route by the assistance of the narrative 
alone would fall into serious errors : respecting this cir- 
cumstance however the reader has been already cautioned 
in a note in the first volume. The construction of the 
lines of route upon the map which I have designed is the 
result of all the indications given by the traveller, and 
which I have collected in the form of a table. It is also 
necessary to consult the following article, respecting the use 
which I have made of these materials, to render them 
accordant with anterior information and the positions 
already admitted as incontestable. 
