The home journal. (Winchester, Tenn.) 1858-188?, 1883-06-13
SCRAPS or SCIENCE.

A GERMAN chemist has established tho
valuable TACT that wood impregnated with
parailine oil is preserved iur mnny years
from rot, even under circumstances most
favorable TO decay.
A CORRESPONDENT Of Nature gives the
following natural experiments with polar.
izcd light; Break off plate of ice and
hold 1t between the sky and n pool Of
water Its reflected image will show tho
beautiful colors due to polarized light.
The incident rays should come from
part OF the sky about ninety degrees
from the sun, and reflection should take
place at the polarizing angle for water,
and the plate will probably require ad.
lusting TO bring out the maximum Of.
feet.
ALTuoudu DIR. J. Gwyn Jcil'rcys hns.
during period of between forty and
fifty years, drcdged, ms an explorer, all
the seas Of the British Isles besides
considerable part of those on the coasts
Of North America, Greenland, Norway,
France, Spain. Portugal, Morocco, and
Italy, he never found anything Of value
except 10 natrallst, nor any human
pone, "l''louSh many 'hp'S''iid human
~" p"irB' h'us. I,"Ne p'cllShcu III 'i'nSe Se"S'
nv H,t's' "c"u po''sS' o'S'' 'h"' WIS
appear to exist only in the imagination
Vi .'e poe'S'
lliE aftlilclai means ny winch drowsi'
ness may he induced lnve been inycst.
gatcd lately al ,icrmany ny Ireyer. Inc
ordinary drowslnesS oi fatigue sllppos, i
To DE caused ny the introduction INTO tlie
blood oi Instlc acld, compound pro-
cecdlng from the dlstlngcla'ioh oi tlle
bodily tissues ol nerves hnd muscle. 10
ascertain whether thlS view was correct,
preyer administered large quantities ol
the acld 10 animals, and iolhd That II
woild Induce drow@nCss ana Slnmhrr
apparently identical with formal sleep,
and from winch they awaken seemingly
m'ch refreshed N"t ohly ,act'o SOFA
butsour mix ana wney' icu !" ",imnS
Nliic'l wiz, mo pcc'' '"'''ns' i'ou"'ou '"''
"i'l'''h'' S'o'i
IHE conditions prescribed ny 'he br'',
ISL Government Ill inc maii'ilac'nre oi
guhpowdcr ior the epnpiic service pr"'Ii''
among oihrr 'hlhSS, tIiNt 'h' WOO" ,
doS"ood the ci'arco"' SIi"'l % Hi Hi
thc utmost cleanliness any Traces" DARK
adhcrihg tolt constituting an 'hPnN'y
ihSnlihS lis 'h'l',c'Ia'o '""u'I'il''',,h,
ahd Inc woo" must aiSo ne cu' Ill 'nc
spring oil the year. ii tue latter opera
non Is performed wheh 'lie S"p Is rlsiIe;
the bark Is easily removed ana 'he wooo
Bleit pcrlectlN cIeiul' put "oo' GU, '"''i
III the year or III WINTER Is peri'S'y US
good only III TINS case the rem"Nal oi the
bark Is II much more 9i''''"' hn'ur, .,!h' .h'
process oi separation involves 'lc '"'i',s
ol the WOOD, or, II tniS Is lmprac'iSa"i'
the whole OF the bark must he snaNeo
on With khiie. Inc onlectioh ch'hN
craracterilihg poth fhe poliea n'''
shaved, Tor GnhpoWdcr manufacture ,n"
they do not Keep SO wei when s'acK''
MS the sprlng'cut wood, gong 10 qeca'
much faster.
Rusr.-Proicssor BNrif, of London
has discovered how to treat iron vessel
so as to render them wholly safe from
tendency to rust, so that boilers, if tn
iron Of which they are madc had bee
thus treated, would he safe against Il!
corrosion caused by the water and COOK
ing vessels would no longer need oithc
to be made of copper or furnished wit
. 4 . i 4 l.. a..