178 Proceedings at the Meetings. 



3. Some Compounds of Guanidine with Sugars. By R. S. Mor- 

 eell, M.A., Gonville and Caius College, and A. E. Bellars, B.A., 

 Magdalene College. 



4. The influence of strong electromagnetic fields on the spark 

 spectra of some metals. By J. E. Purvis, M.A., St John's College. 



March 13«A, 1905. 



In the University Chemical Laboratory. 



Professor Marshall Ward, President, in the Chair. 

 The following was elected a Fellow of the Society : 



H. T. Ferrar, M.A., Sidney Sussex College. 

 The following Communications were made : 



1. On the relation in size between the megalosphere and the 

 microspheric and megalospheric tests in the ISTummulites. By J. J. 

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



2. The Penguins of the Antarctic. By E. A. Wilson, M.B. 

 (Communicated by Mr A. E. Shipley.) 



3. The old Moraines of South Victoria Land. By H. T. Ferrar, 

 M.A., Sidney Sussex College. (Communicated by Mr A. E. Shipley.) 



4. Notes on a collection of Parasites from the Museum of Univer- 

 sity College, Dundee. By A. E. Shipley, M.A., Christ's College. 



5. On the Maturation of the Egg and early development in certain 

 Sawflies (Tenthredinidce). By L. Doncaster, M.A., King's College. 



6. Densities of the Earth's Crust beneath Continents and Oceans 

 compared. By Rev. O. Fisher, M.A., Jesus College. 



May 1st, 1905. 



In the Cavendish Laboratory. 



Professor Liveing, Vice-President, in the Chair. 



The following Communications were made : 



1. On the striation of the positive column in discharges through 

 vacuum tubes. By J. J. Thomson, M.A., Cavendish Professor of 

 Experimental Physics. 



