178 



Prof. D. E. Hughes. 



[May 10,. 



May 10, 1883. 



Mr, JOHN BALL, M.A., Vice-President, in the Chair. 



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

 them. 



Dr. Dietrich Brandis (elected 1875) was admitted into the Society. 



In pursuance of the Statutes, the names of Candidates recommended 

 for election into the Society were read from the Chair, as follows : — 



Aitchison, James Edward T., Sur- \ Flight, Walter, D.Sc. 



geon-Major, M.D. 

 Browne, James Crichton, M.D., 

 LL.D. 



Dobson, George Edward, Surgeon- 

 Major, M.A., M.B. 



Duncan, James Matthews, A.M., 

 M.D. 



Fitzgerald, Prof. George Francis, 

 M.A. 



Frost, Rev. Percival, M.A. 

 Gill, David, LL.D. 

 Groves, Charles Edward, F.C.S. 

 Grubb, Howard, F.R.A.S. 

 Langley, John Newport, M.A. 

 Remold, Arnold William, M.A. 

 Trimen, Roland, F.L.S., F.Z.S. 

 Venn, John, M.A. 

 Walker, John James, M.A. 



The following Papers were read : — 



T. " Theory of Magnetism based upon New Experimental Re- 

 searches." By Professor D. E. Hughes, F.R.S. Received 

 April 5, 1883. 



In a preliminary note* I communicated to the Royal Society the 

 formulated results of a lengthened series of experiments with the 

 induction balance, and I now present the experimental evidences 

 which led me to these conclusions. 



From numerous researches previously made by means of the 

 induction balance, the results of which I have already published, I 

 felt convinced that in researches upon the cause of magnetism, I 

 should have in it the aid of the most powerful instrument of research 

 ever brought to bear upon the molecular construction of iron, as indeed 

 of all metals. It neglects all forces which do not produce a change 

 in the molecular structure, and enables us to penetrate at once to the 

 interior of a magnet or piece of iron, observing only its peculiar 

 structure and the change which takes place during magnetisation or 

 apparent neutrality. 



* " Proc. Rot. Soc. " vol. 34. 



