Recently they had found that they could dispense with the floating mirror and reflector. The ether was their transmitter of all they wished to see or hear at a distance. Through it passed electric waves from even immeasurable distances, whilst the sky itself formed a sufficiently complete mirror for reflecting whatever was occurring under the horizon. By recent discoveries and inventions they were enabled to transform electric impulses into the scene or sound that gave them out into the surrounding air. Their new instruments would tap the occurrences at any point on any given line or in any given direction. They were now independent of any artificial medium for their knowledge of the outside world. The receivers of their new idrovamolan were every moment recording and analysing whatsoever occurred along the line in which it was directed; and its transformers were constantly translating the electric records into the forms or sounds which originally sent out the impulses; it was so constructed as to prevent the confusion of waves that came from different points on the route, for it moved with the swiftness of light or, if required, with that of electricity. These new modifications gave them hope that they would soon be able to see and hear much of what goes on in universes which, though invisible, yet transmit luminous and electric waves sufficiently strong to affect their telescopic instruments, and that the straggling rays of light or electricity might be transformed into the scenes and sounds which gave them birth.