ADVERTISEMENT TO THE MAP.
I n conformity with the reported computation of the
master of the “ Charles,” the scene of the shipwreck has
been placed in the Map four hundred miles north of the
Senegal, or about the 22d. degree of north latitude.
The ruled line drawn from this point represents Adams’s
recollected courses to Tombuctoo and Wed-Noon, extracted
from the Narrative, at his highest estimates of distance.*
The dotted-line from the same point is given as the assumed
real track of these journeys: being an adaptation of the
former line to the positions assigned by the best authorities
to the cities of Tombuctoo and Wed-Noon; and the difference
belween these two lines will shew the extent of
allowance for errors in reckoning which Adams’s statements
appear to require.
It is evident, however, that the accuracy of the first part
of these journeys (from the coast to Tombuctoo) must
* See' the Table at p. 156.
e
