The Ohio Democrat. (Logan, O. [Ohio]) 1886-1906, 1889-10-05
SCIENCE AND INDUSTRY.

SStItNSI fttNI
Tho best diamond cutters make
sixty dollars per week.
The annual production Of chemi-
calls in France is said to have reached
the great value of $500, 10000
The employment Of citrate of am
monia, dissolved in water, has recently
been successfully employed as an cleo
trolytic exciting agent for galvanic
batteries.
1t Is claimed that the methods re-
Gently employed for determining the
electric conductivity of salts in solu-
tion can not be directly applied beyond
the melting point of glass.
From experiments made in Rich
mond, Va, with electric heaters, it
seems probable that a passenger coach
can be kept warm at an expense of two
piled by a dynamo on the locomotive
or tender.
AT the Society of Engineers, En-
gland, it was demonstrated that the
action of sea water on cement blocks,
made with proper proportion of Port
land cement, caused no deterioration
but they were actually improved by it
The result was surprise to all.
From recent study of the bones
of anthropoid apes it appears that the
gorilla and chimpanzee approach near
est to man, but in different degrees,
the orang-outang holding third place.
But great differences exist between
the proportions of the human frame
and those of all the apes.
The salt industry in southern Kan
sas is assuming majestic proportions.
1t is said that the salt taken up at
Wellington, in that State, is the purest
in the world. A dozen great salt
plants are already in operation, and
others will soon be established. In a
few years all the salt used for ordinary
purposes west of the Mississippi river
will probably be supplied by Kansas.
Although mollusks possess no eyes
they display extreme sensibility to
light. the least change Of its intensity
sufficing to excite more or less sud-
den contraction of the siphon. The
existence of two distinct functions has
been verified-one receptive and the
other emissive-thus showing that tho
mechanism of sight belongs to the
category of tactile phenomena, in the
higher animals gradually differentiated
and localized in a special organ.
Artificial silk is not yet manufac-
pears that this will very shortly be
done, and whileit is impossible to fore
tell with certainty what will be tho
commercial results of this curious in
vention, it is impossible to resist tho
conclusion that it is highly practicable,
and that it even contains the elements
of great future success. Engineering.
Electricity will be used in prac-
tical way in taking of the census. The
census blanks will be the same as usual,
but the information they contain will
be recorded on large sheet of paper
by the punching of holes in it at GER.
tain intervals. An electrical circuit is
formed through these holes, and coun-
ters are added electrically, recording
on their dials all items of the same
kind.
If saccharine is not wholesome
article of diet, it seems to have other
uses of great value. Thus, French
writer aflirms that it is valuable anti
septic. A strength of one to 500. as an
addition to mucilaginous and other So
lutions. prevents the formation of low
An inexpensive dentifrice,
for example, may be prepared by simply
saccharine in water, in the
proportion ofsix per cent. A teaspoon
full of this in half pint of water forms
an admirable antiseptic mouth wash.