The Measurements of Kaufmann on the Deflectability of β-Rays in their Importance for the Dynamics of the Electrons
by Max Planck.
Gentlemen! Probably all physicists especially interested in the development of the newest branch of electrodynamics, the mechanics of electrons, have awaited with great interest the outcome of the subtle measurements of the electro-magnetic deflectability of β-rays of radium, performed last year by W. Kaufmann, and the expectations attached to such experiments have been met in large measure; because Kaufmann has gained from them a large amount
