The weekly intelligencer., 1895-08-24
FOUND BY THE NEEDLE.
a Hugo Inaccessible Mass Of Iron Ore
KuaaIn.

4 Hugo Inaccessible Mass of Iron Dre In
Russia.
Science has just demonstrated that
there lies under the historic Russian
town of Moscow q mass of iron ore
miles In length and breadth, and pow,
erful enough to defect the magnetic
needle and pull plumb line from the
vertical throughout large region;
but investigation also makes II proba-
BILE that this mass Is about seven miles
below the surface fact calculated to
cool the ardor of speculators for some
time to come. We translate from
"Gaes," Leipsic, April, an account of
the discovery Of this inaccessible ore
bed, which human eye has never seen:
when recently, for the first time in
afty years, = new triangulation of
Europesu Russia had been begun, the
remarkable fact was discovered that
in the neighborhood of Moscow the
plumb line suffered very notable de-
Walton from the vertical. This devia-
tion appeared greatest within q zone
that extended about forty kilometers
twenty -four miles) north and south
aud one hundred and eighty kilometers
lone hundred and twelve miles) east
and west. Here the lower end of the
line was deviated eleven seconds to the
north of the vertical. About twelve
kilometers (seven and q half miles)
south of Moscow, on a line running
approximately east and west, its direc-
ton IL normal, while farther south the
lower end Of the line Is deviated about
Ave seconds toward the south. So
noteworthy Q deviation of the line
in Q level region seems to indi-
cate that heavy masses of consider
able thickness must be situ-
ated there, under the earth's
surface. Great masses of iron were
naturally thought Of first, and an at
tempt was made to demonstrate the
existence of such masses by means Of
measurements of terrestrial magnet
ism, The scientist II. Fritsche, SO we'll
known on account Of his researches in
terrestrial magnetism, made, in June
1893, . magnetic survey of the neigh
borhood OF Moscow for eighty kilome-
ters (6fty miles) around. The terres-
trial magnetic elements were precisely
measured for thirty-one localities, and
indicated geographically on q map
It was shown that in gone twenty
ktlometers Twelve and q half miles)
wide from north to south and one hun
dred and 6fty (ninety-three miles) long
from east to west, including Moscow,
the total intensity of the earth'a mag
nstio force IL considerably greater than
north or south Of this zone; the anom-
ally II greater than In the eastern. A
chart Of the snomalies of magnetic In
clinstion shows that the deviation of
the magnetic needle from the horizon
tai u greater than the normal north OF
Moscow and smsllsr to the south, and
Q chart Of the anomalies of declina tion
deviation from true north) shows sim-
liar irregularities These researches
lssd 70 the conclusion that where the
local attraction WIS observed, In the
neighborhood Of Moscow, huge masses
Of iron lie buried underground, and
that they possess north magnetism in
. middle zone and south magnetism in
two subsidiary zones stretching north
and south thsrefrom.., The question
how dsep this mass lies cannot Ger.
tainly be answered, but, according to
FritsGhs's estimate, It may be assumed
that the middle zone lies scarcely less
than thirty-ave thousand feet below
the surface. An exploitation of this
immense mass Of ore il therefore i'm
| possible, owing to the depth At which
It b tuatsd.-Literary Digest