The President and Council of the Royal Society ad- 
judged the Medal on Sir Godfrey Copley’s Donation, for the 
year 1818 , to Robert Seppings, Esq. for his Papers on the Con- 
struction of Ships of War, printed in the Philosophical Transac- 
tions ; and the Gold and Silver Medals on the Donation of 
Benjamin Count of Rumford, to David Brewster, LL. D. 
E. R.S. for his Discoveries relating to the Polarisation of Light. 
