Juniata sentinel and Republican. [volume] (Mifflintown, Juniata County, Pa.) 1873-1955, 1897-11-10

The swallow has n larger mouth, In
proportion to its size, than any other
bird. He needs n scoop-net mouth,
for he does all his feeding on the wing.
Place a snake on a smooth surface.
as n polished table. and it makes no
hcadway. because it finds no resistance
on the smooth surface To aid 1t In push
Ing ahead.
An attempt to acclimate ostriches In
South Russia has proved successful.
The ostriches born in Russia are much
less sensitive to cold than the imported
ones. and their plumes are equally
good.
The wave length Of Roentgen rays.
according to PrOmetheus, has been as
certa ined by DIR. Fromm of Munich to
be fourteen millionths of n Eillimeter, or
about seventy-five times smaller than
the smallest wave length Of light. The
determination was based upon inter
ference-phenomena-
A powerful anaesthetic. which vola-
tiliZes on exposure to the air, has been
Invented by a Polish chemist. 1t is be-
kieved that bombs filled with this chem
Ical, and thrown into the ranks of an
oppt 1g army, will In a few moments
m.Ne the foe utterly helpless.
Condensation Is the result of chilling
the air. The ascent of the lower strata
Of the atmosp pherc into the higher re-
Hions and the consequent expansion
and loss of heat Is the most proba BILE
cause Of rain, and 1t is not impossible
that the air near the ground, being
made to rise by being artiticially heat
ed, might tend to produce the desired
downpour of rain.
There is patented n usefr. addition
to the typewriter III the shape Of pair
# small mirrors, measuring each nine
and onehalf inches by three and one
half inches, SO mounted as to afford a
perfectly clear view of the writing 10
an operator sitting erect and using it
table height. The mirrors can be at
tached to any machine, and do not m
terfere with any Of its uses, while they
can be turned aside in a moment when
1t is desired to brush the types or insert
4 fresh mixing ribbon.
1t is not often that estimates are Civ
en- in years Of the time that has elapsed
since the appearance Of early races Of
men. Such IN estimate. however. has
recently been made by Mr.. Jacob
Nuesch concerning the ancient inhab-
ltants Of Switzerland. According to
DIR. Nuesch man first appeared on
Swiss soil about 2SOOO years ago. He
dwelt there during 5000 years. when
great changes occurred, and for 5000
to IL, 1000 years man seems to have been
absent. He reappeared Mt the begin
ming of the Lake Dwellers' period.
which lasted 1000 years. and closed
1000 years ago with the introduction
Of bronze.
Much attention in scientific circles
las been attracted by recent lecture
by Prof. William Crookes on "Dia-
monds." Prof. CrOOkes made a spe-
.ial study of the diamond mines Of
South Africa, and his conclusion is that
the gems found there have been crys-
.allized out of molten iron contaaning
carbon in solution, and at sufficient
iepth below the surface to give great
pressure; but this is doing on a large
pcale what Moissan, the French chem
Ist, has succeeded in doing on q small
scale. Moisson makes microscopic dia-
monds by dissolving carbon in iron.
and causing the crystals to form under
pressure. The chief difference appears
% be in size and capacity Of the la abor-
ltory, In which regard nature has n
vast advantage.
DR.. Won Liebig Of the University Of
Munich calls attention, In Science. to
ZONE of the curious effects of rarefied
and Of condensed air on human res
oiration. On high mountains some
persons experience distressing short
ness of BREATH" one result Of which is
that they are unable to whistle. Pre-
.isely the same effect 10 sometimes
produced by the condensed air In cais-
sons and diving bells. IAborers work
Ing in compressed air frequently find.
however, that their powers Of exertion
are increased as long as the atmos-
pheric pressure is not more than dou-
BILE that Of ordinary air; but beyond
that point unpleasant effects are ex-
perienced after the men have left the
working shafts and returned into the
open air. On the other hand high at
mospheric pressure in the case of per-
sons not doing manual labor has been