Barbour County index. [volume] (Medicine Lodge, Kan.) 1880-current, 1888-11-07
SCIENCE AND MECHANICS

| ALUMINIUM resembles silver in appear
| ance, Is stronger than steel, will not tarnish
and is superior TO silver for all purposes for
| which that metal is used.
RED lead is much less poisonous than
white lead. 1t is less soluble in the secre-
| tons of the body, much denser, and hence
less liable to form dust, and its use is much
| less general.
THE turpentine with which so many oil
colors are mixed is highly volatile, and car-
ries particles of white lead, too minute 20
be visible, into the mouth and lungs. Hence
the painter is open to collie and paralysis
A NOTED scientist of Asam supposes the
moon to be entirely covered with snow, with
frozen and hoe-covered seas, and thus ac-
counts for the chief features of the lunar
landscape, including the absence of water
The markings on the planet Mars, SAYS a
work on science, seem to be changing from
time to time, but the general geography-if
such word be proper for any other planet
but the earth-is about the same as when
first mapped.
FRENCH microscopist has made a new
application of photography Being unable
otherwise to examine the structure of
heated steel, he photographed the white-hot
metal and then placed the negative under
the microscope.
FROM an estimate by noted scientist It
appears that if the energy of lightning were
stored up and distributed for electric light
ing, from seven TO thirty-fve flashes would
be required to keep one incandescent lamp
aglow an hour.
MAGNETIC lifting attachment, as a sub
sutnte for the ordinary crane hook for
masses of iron and steel, has been produced
1t will lift 500 pounds without any hook be-
ing used. But as it attracts equally in every
direction 1t tangles up iron chains, so ropes
or brass chains must be used with it.
IL France very practical use of photog-
| raphy has recently been made. Several
persons were imprisoned by the caving in
| OF well. A hole was bored, and down this
| tube with camera was slid The photo
graph showed the faces of the dead men,
| and demonstrated the uselessness of efforts
| at rescue.
FOREMOST among the dangerous prepara-
tions of lead stands the well-known paint,
white lead, carbonate or rather mixed
carbonate and hydrate of lead. It is pro-
duced and consumed in vast quantities, and
often occasions IN the workmen who make
or use it the most characteristic and dis
tressing symptoms of lead poisoning.
ATTENTION has been called to the fact
that electricity is now being used to pro-
duce strange and beautiful effects in fash
| ionable fall toilets for ladies. Minute
| globes are Illuminated among the hair orna-
ments or in the hearts of flowers dis
tributed over the dress. tiny battery is
secreted about the clothing of the individ-
usa, which produces the electricity.
THE manufacture Of rubber articles is not
unattended with danger, as compounds of
lead are not infrequently employed for Civ.
ing weight. Lead meets us further in the
paper-hanging trade. Perhaps it may have
been somewhat overlooked because the at
tention of physicians, analysts and of the
general public has been mainly turned to
the arsenical compounds, still, unfortu-
nately, In SO common use. But the lead is
also there, and does its share of mischief