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PHILOSOPHICAL 
TRANSACTIONS. 
VIII. 0 « the Rate of Travelling, as performed by Camels ; and 
its application, as a Scale, to the Purpofes of Geography. By 
James Rennell, Eft. F. R. S. 
Read March 17, 1791-. 
A MONGST the difcoveries and improvements of various 
kinds, that may be expe&ed from the very laudable, and, 
as it concerns mankind in the grofs, no lefs humane and bene- 
volent inftitution of AN association for promoting dis- 
coveries IN THE INTERIOR PARTS OF AFRICA, that of the 
geography of the Continent in queftion may be expected to 
make the quickeft progrefs : fmce, in every kind of diftant 
refearch, whether fuccefsful or otherwife, the a£t of enquiry 
alone brings materials to the geographer. But 9 even with every 
Vol. LXXXI. T ordinary 
I5r 
