The President and Council of the Royal Society ad- 
judged the Medal on Sir Godfrey Copley’s Donation, for the 
year 1815 , to David Brewster, LL.D,, for his Paper on the 
Polarisation of Light by Reflection, printed in the Philosophical 
Transactions ; And the Gold and Silver Medals on Count Rum- 
ford’s Donation, to William Charles Wells, M. D. for his 
Essay on Dew, published in the course of the preceding year. 
