Juniata sentinel and Republican. [volume] (Mifflintown, Juniata County, Pa.) 1873-1955, 1892-09-28
DISCOVERIES AND INVENTIONS.

Human remains of bygone ages have
often been discovered, but French
scientist has found the fossil skeleton
OF a monkey lof the same species as
those inhabiting the rock of Gibralterl,
on the French side of the Pyrenees.
The announcement has excited much
interest in continental circles.
Mr.. Crooker, who is constantly discov-
ing fresh wonders, has found practi-
cable means of making red-hot-airl A
contemporary describes the process
which is of course effected by the
electrical current, but We simply note
the fact as of merely scientific interest
to-day, bat possibly, In the not distant
future, valuable discovery.
A simple and economical way OF
tarring sheet iron pipes, to keep them
from rusting, is as foil Iws:-The sec
tions as made should be coated with
n coal tar and then filed with light
wood shavings and the latter set on
fire. 1t is declared that the effect OF
this treatment will be to render the
iron practically proof against rust for
an indefinite period, rendering future
painting unnecessary.
A discovery has been made by NJ.
Flamand in Algeria, which will inter
est archaologists. He has found Ger
tain wells upon which figures of men,
women, and children, evidently pre-
historic, are represented. The stones
also show the figures of horses, cattle,
ostriches, and elephants, though the
elephant has not inhabited this region
within historlc times. Further details
are expected.
/ Tempering Steel by Electricity
Another useful sphere has been found
| for the electric current which, 1t is
said, is in successful use at the gun
| factory of st. Etienne, France, for
| tempering springs. The latter consists
of steel wire wound spirslly. BY pass
Ing a current of % amperes at 45 volts
through them, rapid heating results,
and when the required temperature
has been reached the circuit is broken
and the springs fail into trough OF
water. By this method, a workman,
it is said, can temper 2, 100 springs a
day.
Amongst the latest ideas in medical
investigation is that of discovG ring an
antidote for the electric shock. An
amateur in Investigator in America, is re-
ported to have found that the inser-
ton of aromatic spirits of ammonia
into the body of bird which had re-
ceived shock brought the animal
back to life after all signs of anIma,
ton nd disappeared. Whether such
a result would follow in the case of 6
human being, Is of course unknown,
but the subject Is one we'll worth the
scientific attention.
How to drill glass" is the subject oi
a letter to the Scientific american
The writer says that to do it success
fully one should first make the neces
sary drill ont of bit of Stubs stee
wire. Make the cutting edge Just like
a stone drill, having the corners square
aud sharp. Heat the drill with the
blowpipe to a white heat and drop i
instantly into water. A few trials vii
get it hard enough. Rotate the drill
in small drill stock, keeping the cut
ting edge wet with solution of cam
phUr in turpentine. Sharpen the drill
Occasionally on an oilstone. Such 1
drill will cut a hole through plat,
| glass three-eighths inch in about on,
minute. If the glass is thin, paste writ
ing paper on each side with common
mucilase,