Electric Induction in Shells of small Thickness. 147 



May 3, 3888. 



Professor G. G. STOKES, D.C.L., President, in the Chair. 



The Presents received were laid on the table, and thanks ordered 

 for them. 



In pursuance of the Statutes the names of the Candidates recom- 

 mended for election into the Society were read from the Chair as 

 follows : — 



Andrews, Thomas, F.B.S.E. 

 Bottomley, James Thomson, M.A. 

 Boys, Charles Yernon. 

 Church, Arthur Herbert, M.A. 

 Greenhill, Professor Alfred 



George, M.A. 

 Jervois, Sir William Francis 



Drunimond, Lieut.-Gen. R.E. 

 Lapworth, Professor Charles, 



LL.D. 



Parker, Professor T. Jeifery. 

 Poynting, Professor John Henry, 

 M.A. 



Bamsay, Professor William, Ph.D. 

 Teale, Thomas Pridgin, F.R.C.S. 

 Topley, William, F.G.S. 

 Trimen, Henry, M.B. 

 Ward, Professor Henry Marshall, 

 .M.A. 



White, William Henry, M.I.C.E. 



The Bight Hon. John Hay Athol Macdonald, whose certificate 

 had been suspended as required by the Statutes, was balloted for and 

 elected a Fellow of the Society. 



The following Papers were read : — 



I. " On the Induction of Electric Currents in conducting Shells 

 of small Thickness." By S. H. BlJRBURY, M.A., formerly 

 Fellow of St. John's College, Cambridge. Communicated 

 by H. W. WATSON, D.Sc, F.B.S. Beceived March 22. 

 1888. 



(Abstract.) 



1 — 4. Definition of current sheets, current shells, superficial cur- 

 rents, and current function. 



5. Expression for the vector potential of the currents in a sheet. 



6. Expression for the energy of a system of current sheets in terms 

 of the current function and magnetic potential, viz. : — 



VOL. XLIV. M 



