Notes

Abstract

THE International Meteorological Conference which met in Paris in 1896 appointed a permanent Committee on terrestrial magnetism and atmospheric electricity, and submitted to the Committee a number of questions for report. In order that these questions may be well discussed, it has been decided to hold an international conference on terrestrial magnetism and atmospheric electricity in connection with the forthcoming meeting of the British Association at Bristol, which will begin on September 7. Letters of invitation are being sent out by the Committee; and all foreigners who propose to attend the conference may obtain tickets of membership of the British Association, free of charge, on application to the Assistant General Secretary of the Association. Among the subjects to be discussed are: the calculation of monthly means with and without taking disturbed days into account; the publication of the monthly means of the components X,Y,Z, and the differences ΔX, ΔY, ΔZ, of the monthly means from the preceding means; the establishment of temporary observatories, especially in tropical countries; and the relative advantages of long and short magnets. The decisions of the conference upon these questions will be reported direct to the International Meteorological Conference. But though the first business of the conference will be to report upon the questions submitted to them, papers and communications on other subjects connected with terrestrial magnetism and atmospheric electricity are also invited. It is desired that such papers be sent to the Committee some time before the opening of the British Association meeting.