Electrospheric and magnetospheric phenomena

A LARGE BODY of literature deals with charged particles and the influence of electric fields on such particles. This paper presents new observations in which conducting spherical bodies themselves cause electrification by moving over the surface of a dielectric; and which, if of proper size range, display interesting static and dynamic effects. Also described are a number of new phenomena in which spheres of magnetic material of appropriate size range, when influenced by an alternating magnetic field, do strange, unexpected, and often very fascinating things, depending on whether or not they are magnetized; and sometimes depending on the presence of electrification.