The New York herald. [volume] (New York [N.Y.]) 1840-1920, 1851-04-24

From the London Athenaum
Letters from Dr. Barth and Dr. Overweg have
been received by his Exceliency che 7iler Bunsen,
by which we learn that up to October last The trav
ellers still detained in the kingdom of Air.
My last communication lsee Atie'm an, No. ,2)-,
p. l,3til gave accornt of the difficulties and
dangers which they had met with on catering that
country; the Inhabitants Of which had shown them
selves hostile to them, that their fate seemed
tirely to depend The protection Of the Prince En-
Muir. sultan of the kelves THIS hoped-for pro-
though il appears no. to have been Sufficient to in
sure their safety beyond Tin-Tcllus, the residence
of the prince, in consequence of which they have
been obliged to forego the exploration OF the coun-
try, and To remain with the prince. They have,
however, been enabled, while thus stationary, to
colec, good deal of oral information, especially
southwest Of Chat which, instead Of being no-
notonous desert, proves to be intersected by many
fertile wadys with plenty of water. Am5ng these
novel features, not the least interesting is lake.
between Chat and Tust, infested with crocodilcs.
AT the date of Dr. Barth letter, Cd October,) the
travellers the point of setting out on an ex-
cursion TO Aghades, the capital Of Air; the new
sultan ha wing promised them his protection, and the
valiant son-in-law Of En-Nur accompanying them
on their journey The latitude of T,n-Telas has
been found to be Is 81 "; the longitude ha ! not
been finally determined. The rainy season lasts
till September, and thunder storms occur daily in
the afternoon between two aud three o'clock, &C
companicd by a west wind, while ut other times it
blows from the east. 1t seems yet uncertain when
Mazxini, the Roman Patriot.
The conspirator Niazzin, as be was called, was
for thirteen years the marked OF European
despotism. Had he dared to set his foot in his
tive Genoa, in any other spot of the land which
had exied him, death by the halter 81 by the bul-
let, would have been his inevitable fate. In Aus
tria, in Russa, or in any other part of eastern
Europe, his capture would have been paid for ly
purses Of gold. France, Switzerland, and England,
the only countries that could receive the fugi.
tive. Now here, now there-watched, proscrbed,
icared-hc still pursued his design, wandering
myth Of instruction, the very spirit Of conspiracy
incarnaic. Wherever plot against dcspotism
goin on, there was Mazzni, either by person or by
correspondence sometimes to stir up, at other times
to repress, and inculca,e pru lcnce. Across the
Alps, all Italy looked to him young Italy, that
dared not speak his name, thought Of him, aud
prayed for him. At last. neither Switzerland nor
France would give asy lum to such man England
alone could afford him a refuge. For years,
accordingly, he was an inhabitant Of Lonon-a
poor. obscure Italian, it seemed earning iiye-
hood by literature. The great mass Of the people
he lived amidst knew nothing ab0u; him. Some
times his would appear IL newspaper,
coupled with a calumny. Sometimes, IN a room,
one person would whisper 10 another, " There i
Nlagziu = aud the eye Of the person - addressed
would rest, with more less Of ntercst or the
slight figure of q man remarkable among a thou
sand for the burning kecnness Of his eye. and the
intense aud earnest melanch Dly Ol he pale coun-
tenance. bf those that knew him more iutmately,
noble and true a man Oi irrcTroachablc rccti-
tude, and the mos. exquisite scasbties the very
soul of chivalry aud honor. Even those who dsa-
greed with him in the whole tenor of hi. spucula-
tons, and who were disposed 90 regard him ~ one
mslcd by restless enthusiasm that had nothing to
10 with facts. aud that facts would never acknow-
ledge, admired his indcstructiblc magnanmity and
h- heroic perseverance. Aud over such - were nj
one with him in political faith, his power amounted
70 absolute fascination. They were never tired Of
talking Of him, If seeing him. OF listening to him
They worshipped him with iervor all but rcli-
gous
The Copying Electric Telegraph.
4 trial If MIR. Bakewell's copying electric tele.
graph was made Wednesday last the "a instant,
between Brighton and LONDON. An instrument n:
the central station Ut the Electric Telegraph Com
pary in Lothbury was placed ia connection with a
corresponding instrument at Brighton, aud comnu-
nicaiions in writing were opened between those
stations. Several messages, which were fac si1iaes
Of the writing applied TO the cylinder Of the trans-
hitting instrument. were received IN othbury in
the prrsence Of gentlemen connected with the Telc-
gtath Cornpauy. The writing, formed by electro
chy meal decomposition, was distinctly legbe, and
the signatures could be recognized. The rapdity
with which the transmission was Effected varied
from 100 10 80 letters per minute, accodrng TO the
sire Of the writing; and we understand that Mr..
Bakeweli expects TO accomplish more than 300 let
tors n minute with single wire when the telegraph
i in regular work. The messages transmitted were
written in full with capitals, points and figures, but
cJntractons and even shorthand symbols might be
used. No manipulation Is required to transfer the
coies of writing from one instrument 10 the other
ut a distances therefore this tolcgraphic coTesp'n-
dorcc is free from the liability to which always
attends the manual operations Of other tclegraphs
The writing transmitted is an exact copy OF the
original. therefore no error can occur. To exhibit
the peculiar means Of secrecy which tae copying
Telegraph PRESENTS some Of the messnEee received
from Brighton on Wednesday we're iinprsased in
yislby onthe paper, and no trace Of wiring could
bo seen until il was washed with solution Tia. in
stantly made the whole legible,