Northern Wisconsin advertiser. [volume] (Wabeno, Wis.) 1898-1925, 1902-05-08


with an unerring imagination. Such
was Professor Clerk Maxwell. of Cam
bridge. In his work on electricity pub
lished at oxford in 1873 he forecasts
the operation of ether in transmitting
electricity across space. Professor
Hertz, of Carlsruhe, disciplined him
self in Clerk-Maxwell's abstruse trains
of thought and in 1889 justified by
experiment his teachers clear prophe-
cies.
Bad Effect of the x-Ray.
Kienbock, of Vienna, In experiment
Ing ON pigeons with the X-ray found
that the effects on the skin were not
immediate, but showed themselves
after several days or weeks. Two
weeks after the last exposure all the
feathers of the back fell out, and later
those of the breast, neck and Uranium.
The feathers of the wings, side and
rump were only slightly affected.
The downy feathers and the minute
hairs of the skin were also lost. A
fresh crop of feathers began to show
D.
thing was that the X-ray was effective
not only where it impinged directly
upon the skin, but also at the place of
its exit on the under side of the birds
body. This high degree of penetra-
ton does not obtain in man and
mammalia generally, and is accounted
for in birds by the existence of air
spaces in their anatomy. Kienbock
cautions physicians that severe burns
and ulcers are caused alone by over
exposure, and that the operator can
no longer shield himself behind
supposed idosyncrasy of the patient.
Experiments in Wheat Cultivation.
The National Association OF Millers
has concluded arrangements with an
agricultural college at Wye, Kent, for
a number of experiments with the
view of improving the strength of Eng
lish wheat and bringing it up to the
standard of some classes of American
wheat. For the Investigations to be
made wheat is being grown on the col
lege farm in Kent. at two other sta
lions in Kent, one place in Surrey and
three places in the eastern counties.
Special spring wheats are being OBJ
tanned from Minnesota and Canada and
will be grown at Wye and in Surrey
Efforts will be made to select and
improve some of the foreign wheats
that are to be grown.
Fewer Ships.
The total number of ships In the
world grows less as the size increases.
The British list is shorter than it has
been during the past half century,
but its carrying power has increased
enormously-24,00 100000 tons In 1900 as
against 1S,000JO0 in 1890. While in
1890 there were S2,29S British ships
of 100 tons and over, there were only
2S.422 in 1900. But the total tonnage
had increased from 17,500.0 900 to 90
100000. The United Kingdom and the
colonies owned 12.071 of those ships,
of 100000 tons. in 1890. and 1888
of $500 900, in 1900. or nearly half the
worlds total. In 1890 COS of British
ships were steamers, In the course of
10 years the proportion rose to 77.9,
which is considerably above the
worlds average
Ether Waves.
Let u Leyden jar or condenser be
kept sparkling with an abundant sup
ply of electricity. At some distance
another Leyden jar of identical dimen-
sions. by suitable arrangement, be-
gins to emit threeinch sparks. The
second system is in exact tune. so
to speak. with the first; a sliding bar
enables the tuning to be adjusted.
Twenty years ago an electrician would
have been filled with amazement with
the sight of a Leyden jar. standing in
space apart from any direct supply
of electricity, emitting a series of long
sparks This is now understood as
consequence of the new knowledge
which Clerh-Maxwell and Hertz had
the mental foresight to conceive as TO
the influence of ether in electrical
operations,
Where Gas is Explosive.
Coal gas is explosive when mixed
with air in the proportion of one
volume of gas to Is of air. this being
a. e.