Nature of a Magnetic Field

Abstract

IN a paper read before Section A of the British Association last year, I gave some account of experiments made by Dr. Norgrove and myself on cylindrical magnets and solenoids spinning about their axes. These experiments forced us towards the conclusion that even in the strongest permanent magnet there was no evidence of any attachment between the metal and the system of tubes of induction to which it is supposed to give rise. All our tests then and since have only confirmed Faraday's words as to the “singular independence of the magnetism and the bar in which it resides”.