ON THE CALCULATION OF MATHEMATICAL TABLES. 



81 



Geophysical Discussions.— Report of the Committee, consisting 

 of Sir F. W. Dyson (Chairman), Dr. S. Chapman (Secre- 

 tary), Dr. C. Chree, Colonel Sir C. F. Close, Mr. J. H. 

 Jeans, Professor A. E. H. Love, Colonel H. G. Lyons, 

 Professor H. F. Newall, Professor A. Schuster, Sir Napier 

 Shaw, Sir Aubrey Strahan, Professor H. H. Turner, and 

 Mr. G. W. Walker. 



In accordance with the terms of reference to this Committee, ' To 

 ari-ange meetings in the ensuing year for the discussion of papers and 

 reports on Geophysical subjects, and to co-operate with existing 

 Committees in making recommendations for the promotion of the study 

 of such subjects in the British. Empire, ' the following meetings were 

 arranged during the session 1918-19 : — 



1918. Nov. 19. Discussion on the Constitution of the Earth's 

 Interior, Mr. R. D. Oldham, P.R.S.— Chairman, Major 

 P. A. Macmahon, F.E.S. 



1919. Jan. 21. Report on Seiches, Dr. E. M. Wedderburn ; Tidal 

 Motions in the Atmosphere, Major G. I. Taylor and Dr. S. 

 Chapman. — Chairman, Sir Napier Shaw, F.R.S. 



1919. Feb. 18. Report on Seismology, Prof. H. H. Turner, 

 F.R.S. ; Account of two papers by the late Prince Galitzin, 

 Mr. G. W. Walker, F.R.S.— Chairman, Dr. A. Schuster, 

 Sec.E.S. 



1919. March 18. Discussion on the Measurement, by means of 

 Horizontal Coils, of Pulsations in the Earth's Vertical Mag- 

 netic Force, Dr. Crichton Mitchell, Prof. W. H. Bragg, 



