APPENDIX. QZ 
Its northern boundary may be expressed from lines drawn 
from where the latitudinal and longitudinal points of 35° and 
20° intersect in Sofala Bay, thence eastward to a similar 
intersection in 27° and 19°, thence north to latitude 15°, 
again west to latitude 13°, longitude 20°, from that point 
south-east to long. 15° lat. 19°, and thence to Fish Bay 
upon the Atlantic shores, in lat. 16° 30’, and long. 13°. 
The vast territory overhanging this line of demarcation 
is claimed by the Portuguese, and it is upon the entrance 
of this alone that any serious difficulty or danger to explo- 
ratory adventures may be anticipated. Portuguese jealousy 
and treachery are proverbial, and both of these vices it is 
too well known have a luxuriant growth under the southern 
hemisphere : these would no doubt be called into full excita- 
tion by the appearance of a party of travellers from a British 
settlement within the pale of their trade and influence; but 
as the nearest point of their penetration to the south is 
distant more than four degrees from the tropic, there is but 
little chance of the present expedition incurring the hazard 
of collision with a Portuguese outpost, more especially if 
its conductor, Dr. Smith, followed up the plan entertained 
by the Committee of Management, of making. distance 
an object of subordinate importance to a full and con- 
nected survey of the countries through which it may 
pass. Although it was not contemplated to say any- 
thing regarding these countries, when the present paper was 
commenced, and is not quite within its scope, still as the 
connection of the lines of discovery from the Cape with 
those of the Portuguese is an object of importance, and 
must be the aim of future adventurers, I shall in this place 
add, by way of conclusion, a few notices from Salt’s excel- 
lent work on Abyssinia, and Bowdich’s account of the dis- 
coveries of the Portuguese in Angola and Mozambique. 
The territory just indicated as belonging to the Portu- 
