THE President and Council of the Royal Society adjudged, for 
the year 1791, two Medals on Sir Godfrey Copley's Donation; 
one to James Rennell, Esq. F.R.S. for his Paper on the Rate of 
Travelling as performed by Camels, printed in the last Volume of 
the Philosophical Transactions ; the other to John Andrew de Luc, 
Esq. F.R.S. for his Improvements in Hygrometry. 
ERRATUM. 
P. 68, 1. 23. for 2,1446 — 60,08711 read 2,14466 — 0,08711. 
