Proceedings at the Meetings. 175 



The names of the Benefactors were recited. 



The following was nominated an Associate of the Society : 



H. N. Russell, King's College. 

 The following Communications were made : 



1. On the Dimorphism of the English species of Nummtdites. 

 By J. J. Lister, M.A., St John's College. 



2. A problem concerning Wood and lignified Cell-walls. By H. 

 Marshall Ward, Sc.D., Professor of Botany. 



3. The Pine- Apple Gall of the Spruce : Note on the early stages 

 of its development. By E. R. Burdon, B.A., Sidney Sussex College. 



4. Note on some peculiar Features in Seedlings of Peperomia. 

 By A. W. Hill, M. A, King's College. 



5. On certain Quintic Surfaces which admit of Integrals of the 

 First Kind of Total Differentials (Second Paper). By A. Berry, M.A., 

 Kind's College. 



November lith, 1904. 

 In the Cavendish Laboratory. 



Professor Marshall Ward, President, in the Chair. 



The following were elected Fellows of the Society : 



N; R. Campbell, B.A., Trinity College. 

 J. H. Field, B.A., St John's College. 



The following Communications were made : 



1. The charge of the a rays from Polonium. By J. J. Thomson, 

 M.A., Cavendish Professor of Experimental Physics. 



2. On the dynamical significance of Kundt's Law of selective 

 Dispersion in connexion with the transmission of the energy of Trains 

 of Dispersive Waves. By J. Larmor, M.A., Lucasian Professor of 

 Mathematics. 



3. The chlorination of a Picoline. By W. J. Sell, M.A., Christ's 

 College. 



4. An attempted synthesis of Uric Acid. By H. J. H. Fenton, 

 M.A., Christ's College. 



5. The diffusion of Hydrogen through Palladium. By O. W. 

 Richardson, M.A., Trinity College. 



6. Optically active Nitrogen Compounds. By H. O. Jones, M.A., 

 Clare College, and Miss M. B. Thomas. 



