lii 
APPENDIX. 
authorities, together with an outline of the construction. To enter into a 
detail of both, would require a volume : I shall therefore barely specify 
the authorities for the sea coasts, and for such parts of the interior as have 
been aforeiimes described by geographers ; and confine the detail to mo- 
dern discoveries, and to such parts, as those discoveries have helped to 
improve : and more especially to the points which determine the courses of 
the Niger and Nile. 
The western and southern coasts, from the Strait of Gibraltar to the 
Equator, have been newly constructed for the present purpose. M. Fleu- 
rieu's authorities have been followed in respect of Cape Verd, Cape 
Blanco, and the Canary Islands. The coasts of Morocco and Fez, rest on 
the authority of Don Tofino's charts, in the Spanish atlas: and between 
Morocco and Cape Blanco, various authorities have been admitted, in the 
different parts : as it appeared to me, that M. Fleurieu had not rightly 
conceived the position of Cape Bajador. 
The coasts on the south and east of Cape Verd, are drawn in conformity 
to the ideas of Captain Price. This gentleman, in the Royal Charlotte East 
India ship in 1793, had an opportunity of adjusting the longitudes of some 
important points ; which longitudes Mr. Dalrymple applied to the cor- 
rection of the existing charts of the coast, and with his accustomed liberality 
and zeal for the improvement of science, permitted me to avail myself of 
the use of these corrections, previous to his own publication of them, in a 
different form. It is to the same invaluable Journal of Capt. Price, that 
I am indebted for some of the most important notices respecting the varia- 
tion of the compass, along the coast of Guinea, &c, ; and without which 
notices, the approximation of the quantity of variation in the interior of 
Africa, could not have been accomplished. (See above, page xxvi.) 
The result is, that the coast of Guinea has several degrees more of extent 
from east to west ; and that the breadth of South Africa at the Equator, is 
less, than M. D'Anville had supposed. 
No alteration has been made in the coasts within the Mediterranean, save 
in the form and position of the Gulf of Alexandretta, and the adjacent coasts. 
The Red Sea, or Arabian Gulf, as well as the whole, course of the Nile, 
