The Ohio Democrat. (Logan, O. [Ohio]) 1886-1906, 1889-02-16
SCIENCE AND INDUSTRY.

in the single industry Of iron and
steel in this country 37,750 men are
employed, who receive every two
weeks $939, 500 in wages. or S23, 4S7,-
800 year.
"A sleeps eye resembles the human
eye. Young opticians often use the
eye of a sheep in learning many of the
most critical points connected with
their profession Y. Press.
Mrs. Millicent Garrett Fawcett, in
recent lecture, called attention to The
fact that the heaviest brain ever
weighed was that famous naturalist,
and the next heaviest. that of washer
woman The natural inference is that
there is no well-established relation be-
tween brain weight and brain power
A single plate of perforated zinc
about q foot square, suspended over
gas jet, is said to retain the noXious
emanations from burning gas, which it
is we'll known destroys the binding of
books, furnishes the gliding and viii
ates the atmosphere for breathing.
"A still body of water at tempera-
ture of from seventy-6ve degrees to
eighty degrees, which is about the or
dinary summer temperature, will evap-
crate about three-eighths of an inch in
twenty-four hours If there is no wind.
With the wind blowing at twenty miles
an hour. the evaporation will be about
half an inch.
DR.. Dorpfeld, German archaalo-
gist, thinks that the Greeks borrowed
their different styles of architecture
from Egypt, and from several of the
ancient peoples of Asia. The remains
of the edifices at Mycena and Tiryns,
he says. bear wonderful resemblance
to the Jewish temple at Jerusalem.
They have an improved method OF
lasting shoes in some of thc Maine shoe
factories by which cement is made to
take the place of pegs and tacks. The
device, which is patented, costs twenty
per cent less than all other articles for
the purpose, and is said to do three
times the work.
Water is made up of two different
things, hydrogen and oxygen. 1t has
in it two measures of hydrogen and one
of oxygen, but the later is so much
heavier than the former, that nine
pounds of water contain eight pounds
of oxygen and only one pound of hy
drogen. The way in which this com
position is proved is by means of vol
taic electricity with an apparatus
made especially for the purpose. 1t
will be found minutely described in all
standard textbooks of chemistry.
The art of bread making has been
known from the earliest times, and as
early as the period of the Jewish
exodus the process of leavening was in
general use. In the Museum at Naples
there are exhibited loaves of bread
taken from u shop at Pompeii and
stamped with the name of the baker.
They are perfect in shape. but are
quite black. probably from the heat of
the volcanic ashes which were cast
upon the city from Vesuvius.
A German photographer, Herr
Ottoman Anshultz, has succeeded in
preparing Photographic plates so sem
sitive that an exposure of 1-5,000th of
n second is sufficient to procure a per-
feet impression. A very small lens must
be used, so that the pictures are gen.
orally only 7-16th of an inch in length
and breadth. Enlarged to an inch
and half on glass plates, and rotated
in series of twenty-four before Il Geiss-
Ter tube, the pictures are used for re-
q large screen.