Iron County register. [volume] (Ironton, Iron County, Mo.) 1867-1965, 1884-06-05
SCIENCE AND INDUSTRY.

Paper is now used in Germany in.
stead Of wood in the manufacture of
lead pencils.
Handsmith, of London, has
discovered process by which color on
marnie may be rendered imperishable.
French experimenter finds that
g tomato leaves are STEPPED, the dilute
liquor will make an insecticide.: The
liquid may be sprinkled on bushes or
other plants and the insects will leave.
Mr. Henry Case, Of Oil City, Pa,
who recently moved there, has COM
pleted the smallest locomotive ever
made, it being but eight inches long
and weighing but pound and half
HE smallest locomotive heretofore
made was the one exhibited at the Gen.
senniai, which. was twelve inches in
length Chicago Times.
Cast iron may be so hardened as to
resist cutting by an ordinary file by the
following method: When the iron is
brought 10 a eherry-red heat, sprinkle
some cyanide of potassium upon it,
raise the temperature then little above
me red heat, and, lastly, dip in the tenn
per1ng tank. Cyanide of potassium
may be used for case-hardening iron
also with decided eject Chicago Jour-
saGl.
-Four large cold-storage warehouses
are now in operation in New York City,
4nd 1t is said that the time is not far
Instant when cold air W II be served
IN pipes throughout the city, just as gas
and water are now. One of the novel
features of the new Washington
market. now being constructed, is a
network of pipe; running through the
building, through which frozen air viii
be furnished to the different meat
sfands.-N. Y. Tribune.
"A general impression exists that
slow grown timber is the strongest, but
This opinion does not, it is said, stand
the test of experiment. There is in
London a Government establishment
Tor testing the quality and strength of
al woods and tails used for Govern
ment purposes. the chronicles of which
are said to be very interesting. Among
other things which have been proved
there, is the fact that fast-grown tim
ber-oak at least the strongest, and
bears the greatest degree of tension.
The starch sugar industry in the
United States consumes daily 10000
bushels of corn and produces grape
sugar and glucose strip of the yearly
value of S1O,O0O.O00. There are thirty
factories in the United States, Furnish
ing their product to brewers and for the
manufacture of table sirup and the
adulteration of cane sugar. 1t is also
largely used in confectionery. in can
ming fruits. making fruit-jellies, and in
cooking. Artificial honey is made from
1t, and so. also, is v.negar.-Bosto,a
Post.
During an Arctic exploration Lieu
tenant Is ay investigated the depth to
which the ground was frozen. He says:
az dug an earth shaft thirty-eight feet
In depth. for the purpose of testing the
temperature, and found, on calculation,
that it is frozen to depth of 800 feet
A bucketful of the stuff taken out of
the shaft, when thawed out, separated
into earth and water. about four inches
of the latter standing on top. This
proved that if the ground there were
ever warmed sufficiently to be resolved
into its original parts it would be found
TO be quite incapable of supporting any
thing on It's surface. 1t is really frozen
<s1nsh s,-N Y Times