The equation of electrical propagation

Members of the Institute always have been interested primarily in those parts of electrical science that concern the motion of electricity in conductors. Although Kirchhoff and Maxwell formulated the equations of electrical propagation more than 30 years before the founding of the A.I.E.E., it remained for the period coinciding with the life of the Institute for the full meaning of their theoretical achievements to be demonstrated. It seems particularly appropriate, therefore, that on the Institute´s 50th anniversary these achievements should be reviewed by one who has had such a large part in applying them and in extending them to long distance telephonic transmission.