reads how thoroughly a century ago the entire theory
of the modern electric telegraph was comprehended;
for a most remarkable premonition, so to speak, of
this great device is contained in a letter recently
brought to public notice, written by the abbe Barthelemy
(the once famous author of the
Voyage of Anacharsis)
to the marchioness du Deffand. “I often
think,” says the abbe, writing under date of
Chanteloup, 8th August, 1772, “of an experiment
which would be a very happy one for us. They
say that if two clocks have their hands equally magnetized,
you need only to move the hands of one to make those
of the other revolve in the same direction; so that,
for example, when one strikes twelve, the other will
denote the same hour. Now, suppose that artificial
magnets can some day be so improved as to communicate
their power from here to Paris: you shall procure
one of these clocks, and we will have another.
Instead of the hours, we will mark on the two dials
the letters of the alphabet. Every day at a certain
hour we will turn the hands. M. Wiart will put
the letters together, and will read them thus:
’Good-morning, dear little girl! I love
you more tenderly than ever.’ That will
be grandmother’s turn at the clock. When
my turn comes, I shall say about the same thing.
Besides, we could arrange to have the first motion
of the hand strike a bell, to give warning that the
oracle is about to speak. The fancy pleases me
wonderfully. It would soon become corrupted,
to be sure, by being applied to spying in war and
in politics; but it would still be very pleasant in
the intercourse of friendship.” In 1774—that
is, two years after Barthelemy’s letter—Lesage,
a Genevese professor of physics, guardedly intimated
that an apparatus could be constructed to fulfill
these vague suggestions. There were a few experiments
in electro-magnetism during the succeeding half century.
It was reserved for our own Morse to put into practical
application the grand system which the abbe Barthelemy
had so curiously foreshadowed in a freak of fancy.
* * * *
*
Endless are the blandishments and the seductive devices
of trade. A famous dry-goods store lately startled
the shopping community of Paris by opening a free
restaurant, a billiard-hall and a reading-room for
the use and behoof of its customers. When ladies
go to purchase at this place, while preparing their
lists a polite clerk escorts them to the buffet,
which is set out with ices, cakes, madeira wine, and
so forth; and, having ended their repast, they are
again escorted to the counter at which they desire
to buy. But sometimes ladies bring their escorts—husbands,
brothers or other useful bankers and purveyors of
lucre—and the question arises, therefore,
how to provide for them. The device of the reading-room
and the billiard-table is interposed for this purpose,
and a servant in livery informs them when the buying
is completed, and when their own duties—namely,