49 



May 4, 1854. 



Colonel SABINE, R.A., Treas. and V.P., in the Chair. 



In accordance with the Statutes, the Chairman read the following 

 list of Candidates recommended by the Council to the Society for 

 election : 



George James Allman, M.D. Robert Mallet, Esq. 



Edward William Brayley, Esq. Charles May, Esq. 



Alexander Bryson, M.D. 

 J. Lockhart Clarke, Esq. 

 Joseph Dickinson, M.D. 

 Ronald Campbell Gunn, Esq. 

 Robert Hunt, Esq. 

 John Bennet Lawes, Esq. 



Capt. Thomas E. L. Moore, R.N. 

 Captain Richard Strachey. 

 Robert Dundas Thomson, M.D. 

 Samuel Charles Whitbread, Esq. 

 William Crawford Williamson, 

 Esq. 



The following papers were read : 



I. " Account of Researches in Thermo-electricity." By Professor 

 W. THOMSON of Glasgow, F.R.S. Received April 20, 1854. 



51. On the Thermal Effects of Electric Currents in Unequally 

 Heated Conductors. 



Theoretical considerations (communicated in December 1851 to 

 the Royal Society of Edinburgh), founded on observations which 

 had been made regarding the law of thermo-electric force in an un- 

 equally heated circuit of two metals, led me to the conclusion that 

 an electric current must exercise a convective effect on heat in a 

 homogeneous metallic conductor of which different parts are kept at 

 different temperatures. A special application of the reasoning to 

 the case of a compound circuit of copper and iron was made, and it 

 is repeated here because of the illustration it affords of the mecha- 

 nical principles on which the general reasoning is founded. 



