Other attempts were
also made during the latter half of the nineteenth century to transmit
signals through the sea. They preceded the epoch when, thanks to
numerous physicists, among whom Lord Kelvin undoubtedly occupies a
preponderating position, we succeeded in sinking the first cable; but
they were not abandoned, even after that date, for they gave hopes of
a much more economical solution of the problem. Among the most
interesting are remembered those that S.W. Wilkins carried on for a
long time between France and England. Like Cooke and Wheatstone, he
thought of using as a receiver an apparatus which in some features
resembles the present receiver of the submarine telegraph. Later,
George E. Dering, then James Bowman and Lindsay, made on the same
lines trials which are worthy of being remembered.
But it is only in our own days that Sir William H. Preece at last
obtained for the first time really practical results. Sir William
himself effected and caused to be executed by his associates--he is
chief consulting engineer to the General Post Office in England--
researches conducted with much method and based on precise theoretical
considerations.
Pages:
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288