PREFACE. 
XV 
Having proceeded, In this manner, to mark down the route and the 
chains of mountains on each side of it, as far as the drosdy of Graaf Rey- 
net, and from thence to the rea-coast at Algoa Bay, I here joined Lieu- 
tenant Rice of the navy, an able and intelligent navigator, who had been 
sent in His Majesty's brig the Hope, under the instructions of Rear-Admiral 
Pringle, to make a survey of this bay, and of the coast and bays from hence 
to the Cape. Here we made repeated observations for the latitude, but 
had no opportunity, during our stay, of taking the angular distance of 
the Sun and Moon, in order to determine the longitude. I therefore re- 
tained the longitude arising from the data I procured in the manner already 
mentioned, although it differed a Httle from Mr. Rice's, being about a 
degree more easterly. His longitude was the result of the log-reckoning ; 
but as the currents that, at all seasons of the year, are found to set in one 
direction or another upon the Bank of L'Aguillas, render the log-reckoning 
very uncertain ; and, as the result of observations, afterwards made, gave 
about the mean longitude between ours, it did not appear important to 
make any change in the chart. I was moreover induced to retain the lon- 
gitude, brought out by computation of the distance and direction travelled, 
on perceiving that it differed not half a degree with that of Algoa Bay, 
as laid down in the excellent chart of the Bank of L'Aguillas, published 
by Major Rennell. 
I have little to observe with regard to the alterations and the additions 
which will be found in this new edition. The most material is perhaps 
the illustration afforded by a few prints from sketches for which 1 am in- 
debted to my friend Mr. S. Daniell, whose elegant work on African scenery 
and animals, just ready for publication, will be highly gratifying to the 
lovers of the arts and of faithful representation. In the arrangement 
of the materials I have made some little change, and rejected some 
superfluous matter and repetitions which were unavoidable in the former 
volumes, on account of their having been published at different times. 
