REPORTS ON THE STATE OF SCIENCE, 



Etc. 



SEISMOLOGICAL INVESTIGATIONS. 



Forty-second Report of the Committee of Seismological Investigations (Dr. 

 F. J. W. Whipple, Chairman ; Mr. J. J. Shaw, C.B.E., Secretary ; 

 Miss E. F. Bellamy, Prof. P. G. H. Boswell, O.B.E., F.R.S., 

 Dr. E. C. Bullard, Dr. A. T. J. Dollar, Sir Frank Dyson, K.B.E., 

 F.R.S., Dr. A. E. M. Geddes, O.B.E., Prof. G. R. Goldsbrough, 

 F.R.S., Dr. Wilfred Hall, Mr. J. S. Hughes, Dr. H. Jeffreys, 

 F.R.S., Mr. Cosmo Johns, Dr. A. W. Lee, Prof. E. A. Milne, M.B.E., 

 F.R.S., Prof. H. H. Plaskett, F.R.S., Prof. H. C. Plummer, 

 F.R.S., Prof. J. Proudman, F.R.S., Prof. A. O. Rankine, O.B.E., 

 F.R.S., Rev. C. Rey, S.J., Rev. J. P. Rowland, S.J., Prof. R. A. 

 Sampson, F.R.S., Mr. F. J. Scrase, Dr. H. Shaw, Sir Frank 

 Smith, K.C.B., C.B.E., Sec.R.S., Dr. R. Stoneley, F.R.S., Mr. E. 

 Tillotson, Sir G. T. Walker, C.S.I., F.R.S.) 



Meeting of the Committee. 



The Committee miet once during the year, on November 27. Dr. E. C. 

 Bullard, Dr. A. E. M. Geddes and Prof. J. Proudman, F.R.S. , were co- 

 opted as members. The annual grant of £100 from the Caird Fund and 

 the special grant of £50 from the same fund were allocated to the University 

 Observatory, Oxford, for work on the International Seismological Summary. 

 Prof. Plaskett was able to inform the Committee that increased support for 

 the Summary was being received from the International Union for Geodesy 

 and Geophysics through the Seismological Association, so that the financial 

 position could be regarded as satisfactory. 



The Committee considered the possibility of the inauguration of experi- 

 ments to determine by seismological methods the structure of the Con- 

 tinental shelf near the British Isles. Such experiments have been made 

 with success off the east coast of North America. 



The Gray-Milne Fund. 



There has been no considerable call on the Gray-Milne Fund during the 

 year. The income of the fund has improved on account of the partial 

 resumption of the payment of dividends by the Canadian Pacific Railway. 

 Purchases for the Milne Library include Vol. I. of the Introduction to 

 Theoretical Seismology by Macelwane and Sohon and Earthquakes by Heck. 



Gray-Milne Fund. 



I s. d. 

 Balance, July I, 1936 . 139 18 5 Operation of Seismo- 

 graphs . . 681 



Trust Income . . 56 14 10 Milne Library . . 3 3 o 



Bank Interest . . 17 o Insurance . . 15 o 



Balance June 30, 1937 187 4 2 



£197 10 3 £197 lo 3 



