MATHEMATICAL TABLES 237 
at new and full moon. ‘This may be because the majority of world-shaking 
earthquakes have epicentres under the oceans. The figures involved in 
these comparisons are such as to imply that the chance of an earthquake in 
a favourable part of the month is of the order 25 per cent. greater than the 
chance in an unfavourable part. Since the publication of his paper Dr. 
Davison has made the remarkable discovery that the focal depth of earth- 
quakes in Japan is subject to a fortnightly period, the maximum depth 
occurring at the times of new and full moon. 
Accounts.—The General Account of the Committee has been closed, the 
balance having been transferred to the University Observatory, Oxford. 
The grant of £100 from the Caird Fund was allotted to the Observatory. 
The income of the Gray-Milne Fund has not recovered, the dividends 
due from the Canadian Pacific Railway having failed again. ‘The principal 
call on the fund was on account of the new seismograph for Cape Town. 
Gray-Milne Trust Account. 
dhs Se Senne ae Sheed 
Brought forward . - 374 17. 9 Miss Bellamy See 
Trust Income . - 46 14 10 rium) . 20°70o 
Bank Interest f : 1 17 o Milne Library . Bur AeeG 
Fire Insurance ; O15 0 
Printing ‘ Constants ’ 7a OMG 
Seismograph . : 80 © Oo 
Legal Expenses FLO 
Secretarial Expenses . Oo II o 
Carried forward 2G 4 LOT 
£423 9 7 £423 9 7 
Reappointment.—The Committee asks for reappointment, for the con- 
firmation of the grant of £100 from the Caird Fund, and for a special grant of 
£50 for the maintenance of the International Seismological Summary. 
MATHEMATICAL TABLES. 
Report of Committee on Calculation of Mathematical Tables (Prof. E. H. 
NEVILLE, Chairman; Prof. A. LopcGe, Vice-Chairman; Dr. L. J. 
ComriE, Secretary; Dr. J. R. Arrey, Prof. R. A. FisHer, Dr. J. 
HENpeErSON, Dr. E. L. INce, Dr. J. O. IRwin, Dr. J. C. P. Mriter, 
Mr. F. Roppins, Mr. D. H. Sapter, Dr. A. J. THompson, Dr. J. F. 
Tocuer and Dr. J. WisHarrT). 
General activity —Seven meetings of the Committee have been held in 
London. 
Dr. E. S. Pearson, who found that he was unable, owing to pressure 
of other duties, to participate in the Committee’s activities, resigned in 
November. 
The grant of £100 has been expended as follows :— 
Calculations connected with the Bessel functions 
Yo; Y,, Thole Ko and K, . 3 : ‘ 3 - 95 © O 
Secretarial and miscellaneous expenses . - 2 a0 Bisel te 
