6 Proceedings. 



June 18, 1896. 

 Sir JOSEPH LISTER, Barfc., President, in the Chair. 



Lieut.-Colonel Sir Or. S. Clarke and Professor H. A. Miers were 

 admitted into the Society. 



A List of the Presents received was laid on the table, and thanks 

 ordered for them. 



Sir J. "W. Dawson exhibited new specimens of Carboniferous 

 Batrachians. 



An oral communication was made by Professor J. A. Fleming, 

 F.R.S., on behalf of Professor Dewar and himself, to the following 

 effect : 



In continuing our experiments on the electrical resistance of bis- 

 muth at low temperatures and in magnetic fields, by the aid of a 

 powerful electro-magnet, kindly lent to us by Sir David Salomons, 

 we have observed the fact that a wire of electrolytic bismuth, when 

 cooled in liquid air to a temperature of 186 C., has its resistance 

 increased more than fortv-two times if it is at the same time trans- 

 versely magnetised in a field of 14,000 units. The bismuth, when 

 cooled in liquid air and thus magnetised, has its electrical resistance 

 increased more than fifteen times, even when compared with its 

 resistance at ordinary temperatures and not in a magnetic field. 

 There is no reason to believe we have reached the limits of this 

 increase. We reserve further details for a full communication to the 

 Royal Society later. 



The following Papers were read : 



I. " Etude des Carbures Metalliques." By M. HENRI MOISSAN. 

 Communicated by Professor RAMSAY, F.R.S. 



II. " On Fertilisation and the Segmentation, 'of the Spore in 

 Fucns." By J. B. FARMER and J. L. WILLIAMS. Communi- 

 cated by Dr. D. H. SCOTT, F.R.S. 



III. " Complete Freezing-point Curves of Binary Alloys containing 

 Silver or Copper together with another Metal." By C. T. 

 HEYCOCK, F.R.S., and F. H. NEVILLE. 



IY. "Note on the Radius of Curvature of a Cutting Edge." By 

 A. MALLOCK. Communicated by LORD KELVIN, F.R.S, 



Y. "A Magnetic Detector of Electrical Waves and some of its 

 Applications." By E. RUTHERFORD. Communicated by Pro- 

 fessor J. J. THOMSON, F.R.S. 



