The result in the external space would be the alternate production of lines of electric strain and magnetic flux, the direction of these lines being reversed each half cycle.
"Hertzian Wave Wireless Telegraphy"
John Ambrose Fleming
Outside the rods we have a corresponding set of charges, lines of electric strain stretching from end to end of the rod, alternating with rings of magnetic flux embracing the rod.
"Hertzian Wave Wireless Telegraphy"
John Ambrose Fleming
But between the two there'll be any old sort of flux."
"The Rough Road"
William John Locke