, 1870-06-26

y<oducan6 the picturo, not in colors, but with
dne Bradasitus Of Light and shade. In, this
w Photographs g. Ne should now call thsn)
4brea uf plants. wtngn ct Insects, and delicate
dcalsna Of lace. But tho an.ir died ont, and
was not fnStTIhed fot long sWies OF ye4r1;
owing to this f.ct-that no firing procsss had
oesn discove5ed. The Photographic darksnod
my lind Vas LETT. These eleTe. men men d,d
th1ee-fourtts of the work aeariy aerenty
years ago; but they failed to Lit
the remaining fourth; therefore they are not
honored as the discovers Of photography.
Is that which relates to the electric Telegraph,
The yeenit strsda, in 1877. speeulated On the
possibility that there might some day, be
found species Of loadstone or mag
net possessing much moro wonderful
properties than those long known. He
sso neeale. Aais Ss saea touched Idn'' With Il
and then balanced on separate plvots, and the
one to be turned In particular direction, the
other vii move synpathetica1l5 with it,. Il,
theoi TWO persons were possessed Of two such
magnetic needles, md settled upon pre-
tance. He merely n.eieed such STONE. but
did not rontute to predict that It would ever
be found. The same idea Was developed
somewhat more fully By Henry Van Etten, in
1851, ve1y likely after reading Strada: Some
SAY that By Kneans Of = magnet, or such nka
stone. persons who are distant from each
Claude being At Paris, and John At Roma, il
each had a needle touched by stone OF
such virtue, that as ono moved .:salf At
laris, the other should be moved At Rome;
then let Claude and John have . similar alpha
IN tie evening. Let the needle make three
turns and a half, to .aignal that it is Claude,
and no other, who Wishes 10 speak with john.
Claude Wanta to eignify, Le rui est Paris
and makes his needle stop at L. then 1t {, then
u r, o, !, and so OF The rest Nov, At the sams
time. the needle Of John, Agreeing with that OF
CLAUDIO, VII so On moving, and stops at the
same Letters: 80 that he esn easily undersland
OF notice what the other would signify to
him."
Van Etten gave diagram, allowing tho dial,
needle. pivot, alphabet; DC, for working cut
the iaee. He was very sandid and honest,
yention; but / do not think there is ! magnet
in the world which has such virtue" And he
implied danger: "Baaidas It Ia ne1peaient.
for t1easons would be too frequent, and too
much protected" A pleasant paper IN the
Spectator gave new turn to this idea, point
ing out how two lovers could ea11y On senH-
mental conversation whenever cruel distance
sepa1ated theu- Each lover must have dis,
Nath the requisite magnet, and ali tho let
ten OF the alphabet; but, besidea these
ietters, 1t shou}d have several entire words
which haye Axaya : place in paszionate epis-
Ties: sa flames, darts, die, language, Absence,
Cupid, he4rt, eyes, being, dear. and the Ike.
This would very much sbtidgo the lover q paina
u the way Of wiring letter, ss 1t would ena-
bic bin to express the meet ubeful and signif-
CA can't "nzd with simple touch Of tho needle"
Those who have Witnessed the action Of
Wheatntone's dial telegraph viii perceive
how closely this odd eonceit Of the writer's OF
former days apprux11nAtes to the actual re-
suits OF scientific invention; for there arc not
only letterS OF the hnhahet around tho dial,
pfete words. The cardinal point OF differ
ence l. this: that the Projectors imagined
some kind OF occult mystical connexion be-
tween the two dials; whereas, in the practical
telegraph, there is copper wire, With or With
ons to IT ~ ea9s from
ten thousand miles. II WAS in 1745, 50. far ss
is known, TINT i wire was frst made to convey
Az electric impulse to considerable
distance Dr.. Watson stretched wire
ac7oss tho Thames, near Westminster
bridge, and sent N impulse through it
ever, merely shock: not signal to ha-:utter-
pteted or diBc1i1uinatod. Tue d1zBt talking
through wire, appea1r 10 nave been effected
in 1887, when u. LaIntund, : French electro
cian, Arranged two electucal machines in two
et,fs'11ss Of his house, with wire connecting
| them. He agreed with Madame Lamont that
tho peculiar movements Of two little pith balls,
excited by an electric cuITent, should denota
certain letters or words and thus kind Of
conversation Vas carried on By working the
| two electrical machines in turn
Thote who arc old enough TO remember tho
Great Exhibition Of 1851, held in the first Crys-
tai Palace, in Hyde PaIk, may possibly calf to
mind the attention which was bestowed at that
time on some stanZas by CHANGER, pointed out
BY one Of his admirers As prediction OF that
grand display. Stirling it certainly il, in many
respecta. The House Of Fame, consisting Of
some two hundred lines, Is fAnciful descrip-
ton Of mighty aeaemtlage held in palace
OF glass; and considering that deofrey Chau-
Ger wrote II four hundred and seventy yea1s
before the Great Exhibition was held, there
was quite temptation enough TO quote. Tho
! poet, in dream fAncied he WAS