The telegraph manual: a complete history and description of the semaphoric, electric and magnetic telegraphs of Europe, Asia, Africa, and America, ancient and modern.

EARLY ELECTRIC TELEGRAPHS.
CHAPTER IX.
Suggestions of Science-The Telegraph of Lomond-Reizen's and Dr. Salva's
Electric Spark Telegraph-Baron Schilling's, Gauss and Weber's, and Alexander's Telegraphs.
SUGGESTIONS OF SCIENCE.
THE various discoveries in the sciences, made from time to
time, developed the idea of an electric telegraph. With many
of the discoverers, nothing more was done by them toward the
production of a practical telegraph, than suggesting to others
the application of the sciences to the arts, which, in their
opinion, would accomplish the great achievement. Philosophers dislike to vend to the world, commercially, their discoveries.
They remove the coverings from the long-closed vaults containing the hidden treasures of a mysterious providence; and
as soon as they catch a single gleam from the brilliancy of the
gem, the world is informed of it. The myriads of discoveries
of the present age compose a galaxy more brilliant in glory than
those of any other century.
Among those who aided by developing science, suggestive.
of the telegraph, may be mentioned Prof. Henry, of America,
who, in 1830, wrote an article, which was published in Silliman's Journal, in 1831, in which he stated " the fact, that
the magnetic action of a current from a trough is, at least, not
sensibly diminished by passing through a long wire, is directly
applicable to Mr. Barlow's project of forming an ElectroMagnetic Telegraph, and also of material consequence in the
construction of the galvanic coil." Ampere, Jacobi, Faraday,
Sturgeon, and others, have also aided by their discoveries the perfection of the art of telegraphing, as now practically employed
throughout the civilized world.
LOMOND1 S ELECTRIC TELEGRAPH.
It is stated in Young's Travels in France (1787, 4th ed., vol.
i. p. 79), that a Mr. Lomond had invented a mode by which,