The New York herald. [volume] (New York [N.Y.]) 1840-1920, 1843-10-19
Domestic News.


PRoFHSSoR MoRsK's ELEcTRo-MAGNEric IELE-
GRAPR-We have been recently favored, says the
American Railroad Journal, with an opportunity OF
witnessing remarkable experiments preparato-
nv 20 the construction OF the telegraphlc line be-
tween the cities Of Baltimore and Washington.
Wires 10 the total length OF l5S miles having been
prepared, II was thought proper by Professor Morse
that this unusual length OF wire should be used
test OF the powers OF his system and also as means
of determining such points of scientific inquiry
might depend upon the employment OF appara us OF
such remarkable magnitude. Several scientific gen
temeR were present-Protessor Renwick oi Co
lumbla College, Professor Draper OF the N Y City
University, Prot. E-t j. r. Peters, G. Z , and Drs
Fisher and Gale, assistants to Professor Morse The
arrangements, from their temporary character, were
not Intended 10 show the perfect working OF the
finished telegraph. The powerful battery employed
was operated under the disadvantages OF Imperfect
insulation and the oampness OF the earth above
which they were supported. THIS was ieeIngy
demonstrated by the liberal supply OF shocks CIV
en- IN every direction by the slightest contact -
Notwithstanding the Disadvantages, the results
were such to eford the utmost satisfaction 10
all present. The battery employed was OF The form
known as "Groves' Constant Battery" with plates
OF platinum in pure nric acid, aud amileamated
zinc In dilute suphurlc acid-the two qulds sepa-
rated by porous diaphragm. One hundred OF these
pairs were sufficient TO work the magnets through
the whole los miles OF wire, and that 90, In space
oi scarcely app eclable fraction oI a second OF
time. A portion OF this interval was consumed IN
overcoming the resistance of the spring attached To
the moving point and the friction OF the JOINT so that
may safely say that the action is instantaneous
through thus length Of wire, This result though III
accordance with the known laws of electric action,
was yet gratifying, as atiording a continuation OF
them when applied 10 an "eXtrenne case" The use
OF larger number Of pairs of course, increased
the power OF the magnets A series OF experiments
were then made TO ascertain the resistance 10 pas
sage OF the electric current by various lengths, Of
from 10 los miles of wire. The result was again
In accordance with what had been predicted TINS
resistance increases rapidly with The hrst lev miles,
afterwards.
great lengths no sensible difference can be observed
This is most fortunate circumstance IN the employ
ment OF electro magnetism for Geographic purposes,
since, contrary to all other modes OF communicating
intelligence, the ffculty 10 be overcome decreases
IN proportion 10 the distance. Several other expert
ments, suggested by the unusual opportunity OF We
ry large battery were then made. and one clrcum-
stance throughout the whole time consumed, seve-
raj hours, was worthy OF note-we refer TO the re-
markaby constant effect OF the battery. TINS ls
one OF the recent improvements, since the appara-
tus formerly in use was subject TO very rapid and
pernlanentoss OF power.
CouKT FOR THE CORRECTION OF ERRoRs.-Octo-
Der IL, lSis-Absent, the Lieutenant Governor, the
Chancellor, Senators Bartllt, Corning, Denniston,
Deyo, Dickinson, Dixon, Hunter, Sherwood, Var
ney-ll
No. "a "A. Gordon imp'd, &c vs. l. n. Gosler
Also No. l3.-The same ]. Beers. Mr.. =. Ste
vens was heard Tor plaintiffs in these causes, and
Mr. S. Sherwood for the defendants in error.
Cause No IL postponed until next Monday.
KENDALL COURSE, BALTMoRE.-The following is
the result ct tuesdays races:-
S. G. Reese Dr. Thos Payne's ch. /. by Priam 1870
J. B. Kendali's CHI. by Drone. ................
The second race by John Gooding-
time l So. First dead heat Fashion and
Blue Dick viii start for the four mile purse.
Friday, Propaetors Parse $500 j. B. Kendall
Mary Randolph. Z. J. Wilson enters bay colt Cos
port, years old, by Margrave, dam Valentine; S.
9. Longwood enters Black Dick, years old, by
Margrave dam Parnonky o. p. Hare enters Tho |
WatSDu's Yellow b n
drew, dam Tubrose.
FATAL SICKNESS. in the Mississippi Free |
Trader OF the 7th instant the following paragraph |
RODNEY, Mlss,-TnIs village, about 40 miles above
NatcheZ has been visited by the yellow fever. A |
number of deaths, and still greater number OF well
marked cases have occurred. in consequence of
which, we are Informed by Natchez ply stefan and
another NatcheZ gentleman who visited Rodney
two days ago, the village is almest depopulated -
Even the only apohecay shop In the place is closed,
as are all the stores,
POPULATION IN THE WEsT-The increase of po-
pulatioa in the West goes on al an extraordinary
rate A census OF Milwaukee city. Just taken, shows
the number OF Inhabitants 10 be 5000, being in
crease OF more than one hundred per cent IN three
years. Racine, now containing 100 inhabitants,
had IN 1889 only % families in The place. The Mil
waukle Courier states, " the crowds OF emgIanis
that overflow the public houses aud block up the
streets, on lher way 10 the INTERIOR would appear
incredible 10 any hut an eye Witness" Ii Is assert
ed In the Detroit Free Press that Michigan, tor the
last two penooe at ten years, mas ased IN popu-
ldllOn al A lSueI an any olllt1 Sldt6 W
riiory; and that she has outsrTped Ohio as 10
rate OF increase, the same relative stages Of Their
growth From 1920 10 1880, the rate OF increase OF
the population at Michigan was 223 per cent; the
next highest dufug the same period illinois,
which wac ls5 per cent, Alabama, l42 per cent. &c
From 1880 TO 1910. her rate Ot increase was 622 per
cent or from population OF 2S 00i. exc usIvr ot
the counes embraced IN Wisconsin, To 2l2-
267. The next highest Stale OF Territory 10 rate
of increase during the same period, was Arkansas,
being 22l per cent then Illinois, al 202 per cent
Mississippi, Ia per cent Missouri, l73 per cent;
Indiana, 80 per cent