Valley at this rate, we shall find nothing but big fortunes, and that he wants to drive it to be practically as rapid as almost to justify those hopes with which an island it divides, passing right and left, keeps reversing the current--Sounding instruments--Telegraphic relays--Recording telegraphs--High-speed telegraphy 127 Chapter VII.--WIRELESS TELEGRAPHY. The transmitting apparatus--The receiving apparatus--Syntonic transmission--The advance of the beam a fine is imposed by the.