488 Proceedings at the Meetings 



February 7, 1921. 

 In the Botany School. 



Professor Seward, President, in the Chair. 

 The following was re-elected a Fellow of the Society : 



E. H. Hankin, Sc.D., St John's College. 

 The following were elected Associates of the Society : 



E. N. Hewitt, Trinity College. 

 W. Schlundt. 



The following Communications were made to the Society: 



1. The Development of Photosynthetic Activity during Germination 

 By G. E. Briggs, M.A., St John's College. (Communicated by Professor 

 Seward.) 



2. A theorem concerning summable series. By Professor G H 

 Hardy. 



3. Vectors and Tensors. By E. A. Milne, M.A., Trinity College. 



4. (a) Standing waves parallel to a plane beach. 



HT A i?T^ ¥''^*\^ ^^^^''^ '^^ *^^ Universe. By H. C. Pocklington, 

 M.A., St John's College. 



5. (a) A configuration in four dimensions. 



(6) The representation of a cubic surface on a quadric surface. 



(c) On Delaunay's method in planetary theory. 



(d) A periodic motion in dynamics. By Professor H. F. Baker. 



February 21, 1921. 

 In the Anatomy School. 



Professor Seward, President, in the Chair. 

 The following were elected Fellows of the Society: 

 G. S. Adair, B.A., King's College. 

 H. S. Carslaw, Sc.D., Emmanuel College. 

 G. N. Nicklin, M.A., St John's College. 

 D. F. W. Scanlan, B.A., Jesus CoUege. 

 J. T. Wilson, M.A., St John's College, Professor of Anatomy. 



The following was elected an Associate of the Society: 



B. N. Banerii, Clare CoUege. 

 The following Communication was made to the Society: 



w ??® present position of the Helmholtz theory of hearing. By 

 W. Hartridge, M.D., King's College. 



