The herald., 1895-06-09

from the surface would be very small.
Taking into consideration the known
density OF the ocean at different depths,
even the unit of 1000 miles appears to be
too large.
If the argument is correct, the conclu-
sion to be drawn is that the yertex OF the
curve of density variation is not at the
center of the earth but at some point be-
tween the surface and the center, ana
probably nearer the midway point than
it Is to either the center or to the sur
face.
But in order to represent the density
up to the center OF the earth, the curve
of density must take q backward course
from its verteX, !. e.. continue in the dl-
rectiun of it's prolonged aXis towards the
center. This can occur IN one OF Two
ways: first, by the curve crossing It's
axis at the vertex and :hcn continuing
backwards towards the center; IL VIII
then resem ble somewhat the semi-cublcal
parobola.
But this construction OF the curve
would also make the maximum density
point too large; besides, it would lndl-
cate change from che solid to the ilqud
condition, having the highest tempera-
ture and liquidity at the center In the
second case, the curve would also continue
backwards but would not cross ! Is axis.
In this case the density would increase
more and more rapidly from the surface
up " tne NeTIek, alleT Which ~ NbuiN
decrease in the same manner. IhlS
change in the curve would also indicate
change in the physical condition but
under reverse condition from the first
case.
By employing the same general argu-
ment 1t can be shown the variation in
the terrestrial temperature can also be
represented by curves similar to those
| showing the variation in density. There
fore, in the second OF the above cases.
10th the density and the temperature
| would rapidly decrease from the vertex
| and would tend toward zero at the CEN
ter, just us they commence at zero at the
| oCtermost limit of the atmosphere. AT
! the same time. matter would tend to-
ward the ptherc condition, passing sue
cessivey TO the liquid. gaseous, atomic
| and 3theric conditions OF matter. 1t is
| evident that the farther away the vertex
| OF the curve is from the center, the nearer
| will the above tendencies be fulfilled.
While at first sight the above conclus-
| ions may appear improbable ana irrele-
vent to our problem. a closer study will
show that it will quite readily account for
the mean density. not onl Y OF the earth
! but of the larger planets, and particu-
larly of the sun. Taking into confidera-
tion the immense size of the sun and its
| large gravitative effect, no other theory
can account for its relatively very small
density. The maximum density given
| by bDe SeCOnu curve Will not DG 100 large.
| for in this case we must remember that
we have two minimum density points.
| We can then accept to a large extent the
| theory that the composition OF the solid
part OF the earth is not constant, but that
the deeper parts everything the concentric
lqdid shell are of much larger specific
| gravity than that of the surface.
| That the center OF a celestial body is
what we call vacuous is, when closely
| studied. perfectly consistent with their
| genesis from the 'nebular MIST That
| the center is place OF intense cold also
follows from a true conception of the
nebular mist, that is. the aetheric con-
dition of matter 1t is admitted by all
that terplanetary (aotheric) matter is
| intensely cold.
The above conclusions regarding the
condition of the matter in the interior OF
| the earth, or any other celestial body Tin
| comets and nebue the contrasts are not
so strong), can be reached by indepen-
dent lines of reasoning. In fact was
| forced to this conclusion while evolving
| an explanation of the cause of gravita-
ton.
(In connection with the above article
| might add that the most noted seismolo-
gist in the world Professor John Milne,
holds the theory that the earth s center is
solid. Mr.. Milne has devoted many years
| of his life to the study of earthquakes.
| For several years he has been i'll the en-
| ploy of the Japanese government and has
| devoted his whole time to the observation
| of earthquake shocks. Japan seems to be
the earthquake center, and Mr.. Milne has
| proven very conclusively that every
earthquake in Japan or elswhere is felt to
greater or less extent in every part oi
the earth. From the rapidity with which
the shocks pass from one point to the
| opposite point of the earth, he deduces
that the center of our planet is a solid
| mass-Sunday Editor