Lewiston teller. [volume] (Lewiston, North Idaho) 1878-1900, 1882-09-21
SCIENTIFIC MISCELLANY.

talitv Of children under different meth |
DDS of feeding have shown that lS.2 !
per cent Of the infants nursed by then |
mothers have died the first year OF
those nursed by wet nurses, 1888 per
cent died and of those reared by in
stitutions, so per cent have died. Fur
ther statistical comparisons show hat
poverty has smaller chauce for Jlte
than competence. Tak,ng 1000 "tis
TODD persons, and 1000 poor Isr'ar
there were living at the end Il U.s.
years, 943 of the prosperous, ana only
'655 Of the poor; after fifty years 531
were left of the prosperous, and only
283 Of the poor; atseventy years of
age 235 of the prosperous remained,
and but 65 Of the poor Among the
well off class the average length Of life
was found to be fifty years, and among
the poor only thirty-two.
According to Prof. +. G. Phillips,
healthy plants may absorb through
their roots, small quantities OF lead,
zinc, copper aud arsenic. The lead
and zinc may enter the tissues in this
way without harming the plants, but
compounds Of copper and arsenic ex
ert distinctly poisonous influence
tending to kill the plants
when present in the soil in considera.
BILE quantities.
It ha, recently been pointed out that
The migration Of insect pests, like that
of men, is chiefly from east to west.
Noxious insects of innumeratle sre.
cies have crossed to America from Eu-
rope, those of the eastern states have
found their way to the Pacific coast
but very few have travcrsed the oppo.
site course, the only considerable pes S
which have crossed the Atlantic from
America being the grape ply lloxcra
and the Colorado potato beetle.
Throughout the univese are
scattered nlyriads Of star systems, each
appearing to the unaided eye as L sin
gle point 50 great is the distance fon
us, but each consisting OF two or mere
great blazing suns widely separated
but revolving about common centre
of gravity, and doubtless attended by
planets traversi g ewilderingly com
plicated oroita. OF the double stars
many systems have components Of diff
. ferent colors, the co!ors being compile
mentary. This peculiar feature mus
produce a striking effect upon thu
planetary attendants Of the colore(
suns. "What," says MIR. W. Doberek
in . recent paper on double stars
unjust b the nature Of those iuns, ont
yellow and the other purple Now
( rises the one and all is clothed in vel
low, now the other, and illuminated
from complementary sources, every OBJ
ject appears in its natural color. Their
sets the yellow sun, and what must bt
the diversity Of the effects AS it ap
proaches the horizon! And, behold
nature puts on purple mantle. The,
also that sul sets, and in the darkness
Of night, though therefs seldom nigh
where there are two suns, the starr,
heavens are seen there Mucl
the same as here, except perhaps
Tor moons rejecting light from tn,
differently colored suns. But star
that seem large to us are hardly visible
there, while our sun is perceived il
the telescopes Of mysterious beings tina
inhabit those strange globes as only
faint star, and metaphysicians Their
prove priori considerations that n,
life could bask in the feeble glare of
single sun--how all would famish IA
for the opposite effects Of the two suns
And no doubt life there is heigh,
ened, seeing how glorious is the cre'
ton on this poor orb that is kept aliv
by but one SUM-"
An experiment by Mr.. John Eito'
q Sacramento chemist. proves that onl
an exceedingly small amount ef oxy
gen is necessary to the life of toat
After being kept for three or four day
under the receiver of an air-pump fror
which the air had been exhausted q
nearly as practica' lie, one of these rex
tiles oppelrcd to have suffered no il
jury. A mouse put under the sam
receiver, was quickly suHocated at tn
third or fourth stroke of the pump.