DURING two thunderstorms at the beginning of the present monsoon, the recorded curves of the Copenhagen declination magnetograph recently installed at Alibag showed some characteristic features which ...

LONDON. Physical Society, October 23.—Dr. R. T. Glazebrook, F.R.S., president, in the chair.—The bending of magnetometer deflection-bars, by Dr. C. Chree. A theoretical paper contributed to the ...