The Donaldsonville chief. [volume] (Donaldsonville, La.) 1871-current, 1882-11-25

we arc new realizing that to be happy
We must be virtnous am happy to say
that many people are now following my
example.
Yours truly, BROADBRIM 81
SCIENTIFIC MISCELLANY.
Observations in France by Nous. Raf-
ford show that flies quickly disappear
from room after the introduction of
castor-oil plant Rici.ae ooae,sasis. Dead
flies ara found near the piaat, from
which it appears that the leaves are
highly poisonsons to these insects.
Prof. Ludwig, III Germany, has been
led by his investigations tc conclude
that, contrary to the assertion Of Som
nenschein, arsenic may be readily detsc-
ted IN the bones after poisoning by that
substance. He even found the poison iii
the bones of dog twenty seven days
:.fser the last of q serica Of doses had
been given the animal.
When the spcctroscope is. turned to the
sky in daylight tho presence Of watery
vapor in the atmosphere protucss in the
instrument characteristic lines known as
the rain band. sanguina british meteor
olegists expect to ha weather pre-
dictions on observation4 Of this band,
aud the probability th sahe spectre
scope may be thus used matter Of
| much interest.
L Some idea of What IS baconing of the
Forests may be had from reconsideration isss
H the amount OF wood that is being
nked BY, railroads. A recently published
rekort shows that ii, Tie maintenance
and, a,repair of French railways since 1877
moiA than zoe i,is trecs mI,st have been
used daily for sleepers alone and some
5,0O0,o00 cubic feet of timber have been
reauised yearly for rolling stock. And
yet the mileage of the railways Of
| France is less than oue, sixth as great as
that Of the United States.
a ienals performer in a Pasisiala Cir.
I Gus remains nnder water two 11ianteS
and half at time. To appreciate,
says Mons. Kerlus. wha.. is implied in
passing two minutes aud u half without
taking breath let any one Nuke q small
experiment, holding his breath Us long
as possible while watching the second
hand of watch. Few persons reach one
minute the majority ars obliged to take
breath before As seconds have elapsed.
Sponge and pearl fishes seldom remain
under water two minutes, ANA yolnn-
tary immersion of mere tI,;,n three mini
u:.s has never been automatically ob.
served.
/ Mons. rAbbadie reports 10 tie Fiencl
Academy that Immunity from marsl
fevers is often scared in unhealthy
Ethiopian regions by exposing tls
4ualse.l body to sulphur fumes. III Sicily
the warkmen il, snlphu.-miues Gil low
ground suffer much less from intermit
tent fever than the rest of the pona'a
ton; Willie Mons. Fonqud has shown
that III Greece IL once ilon.ishiny tow,
Of 20 GOO inilHhittas.s-X,p yria-ba
been almost utterly tlepopnlatcsi thro,ss'
marsh fever, the aeeatlence having cor
responded to u gradual removal OF sal
phur- mining operations eastward beyon'
Il mountain range, 80 that the sulphur
en,tnatioi,s 10 longer reach tho town.
Prof. Dufou. s.ates, rs an overlooked
fact, that h.:l-),rosenters Of the ,latnr
OF lightning rods were ses up in aerera
: vineyards of The Canton dc Maud il
it25, til. object being TO liinslsr the for
, nation Of hail by withdrawing electric
: ity from the clouds. Sumo Of tic si!tt
yards thrs protected wrra destroyed b.
hail tlie next year, and the eXDcrinleD
vas declared A fixture. While taouhtin
the Influence OF such apparatns an hal
elonds, Prof. Dnionr thinks the matte
deserving Of, fresh Investigation, ina:
| t1tuCli IL ll65 sSCtitls uSCI S'fp' ~ bAN
i the presence OF Il snrest-wh:el, i;,ay i
regarded rs =. collection OF lightning
!. rosIs--laay greatly lesssa tie ffeanc.ls
) OF hail showers.
When long heating has driven :sll 3
from tile water in {. aM-boiisf, boi.il
sometime ceases, and supsrhsa.iEx ma
y ocenr with tlanssr OF explosion. Clsa
pieces Of yine i'll the liquid, by unitit
y with sou,e OF its oxsxan aud liberaii.
hydrogen, should throrstie;slIy maint::i
Il boiling. As a more reliable plan
u practices, however, Nous. Trsss asiyis
l. The injection at sha bottom of the boiler
o hot air, or, still better, Of = noi.-oxi.iizii
y gas such rs carbonie neid-tl,e iajectio
L 10 be moderate but continuous. supe
9 heating, which may l,e conceived IS
l. sleep Of tie liquid, would thus be Te
3. dared in,ppssii,ie, au.l rapid eyaperatse
! saving OF fael and ftersn;n FROM ris
Il III l,a aectlrefi