The citizen. (Frederick City, Md.) 1895-1923, 1895-08-09

IL Is possible 10 measure the !lgut Oh
the stars and planets by photogr; ply,
but this i q slow process, and during
the last year an almost instantaneous
method Of measurement has been de-
veloped in Ireland This consists IN
the use IN place of the eyepiece II a tel
e-cope Of very sensitive photoelectrlc
cell. which is connected with spec
iallv constructed electronometer. The
uhatOelectric cell, A. now employed
at Mr. Wilson's observatory AT
Daramoua, consists essentially Of a
glass cell containing the liquid oenau-
thol, one side Of The cell having an
aperture closed by quartz window,
while glass tube having tightly-tit-
ting aluminium wire pas-e, through the
opposite side II the cell nearly To- this
window. The outer end Of the alumni
mum wire l. connected by a platinum
win. 10 on. pole Of the ELECTROMAGNETIC
aud platinum wire IN the bottom ut
the eel. PASSES to the other pole. HE
inner end of the aluminium wire l.
made sensitive by a coating Of -elen-
uu, and when light pae-t- through
the quartz window ana lall~ ON va
Stlehlum, the latter receives poSIliFe
electric charge and the liquid neg
atiYe one, the difference oil potential
beng indImted by the electrouolnetef.
Al ordinary paratliu candle al dis
lance oI Itcl produces an el'Ctl','i'"-
Oh q l'"uI,l' CEN ne '- i'' ~ =.
- '"" 80 - = ,,..77'
!, rec, - s''-r',A S,v''t - i'' -
Us my ''''' ~ ,..t ~
"a. ~ .''1 49, -,.rji',i,, j.
'lH' y ..'na ,'','r'
wv" -, -.
''''.'.,Hu ~ .',,,,i.r .,"Inr
l''' ,,.....,,,..s g ~,
W." wy I'''"'','''i, :, ,''' ME
.,7,,,,,,,i.I H..
.''' '''''i9 10 .t,.',,
an '' 'l'''
After a stefeetollc con- PaIl@"H WIN
the ga- % cleNellte-Il Whlch tefitH'i,H
heIium was llrst distoNeitu-M. IL
De9lahdie- announces that lne peIllia-
heut radia'l"hs OF the sun a'lllos-
pherc that are NOT Ieeoguized on -, ,iie
earth are reduced toa single one. ms
l. green ray, called the ray ol liie
corona when Is ptcu'l@t 70 lhe nIHh-
est regions OF me sonar atmosphere
hii"W ing Us I" su!'Pose 'ii''
ST.
Experiments WIN lhe hEdIolhetei a9
chemical balance nave LeeIl lliaue oS
an Engilsh chemist MI II. j. ilillPs'
ahd nave resulted ia sil'Ple i"s'iu
iheht that i uHeluI IoI certain puI,
poses NlIueu ura9s pu'oa are 9cIe"eu
|" All aluminium STEM Hoa'eu III water
I'D glass cSilhuel' anu heFI uplIsh'
III the centre OF the vessel ny TWO arms
moving on perpendicular gulde ro1S'
y small aluminium pan i placed at the
top OF the stem. ! haer ihe suldli's
arms are heeule points anu HloNapie
rods. IN "elghlhS OUT uenuiIe guam
MY, the weight Is llrsl placed ia lhe
pan. ne eulue 10" leeuie v men
moved opposite the heeuIes 81 tht
substance 70 be weighed Is gradually
dropped INTO the pan uhtIl lhe stem
SINKS 70 the poIhl lhulcated. ne
range OF weight lhai can ue recorded Il
limited ana, WIN NE deIlcacy: De
Ieids upon the SIZE oI Tue stem OF the
noat.
The existence in Alaska Of hitherto
uudescrhed bear-either distinct
species or new variety Of the black
bear-i1 reported in NcjcHce, by Mr.
w. II. Dali. II j. Of moderate size,
not known to exceed six feet in length
a. measured 10y the skin, and is shy and
the brown bear of the same region.
The general color resembles that of the
silver fox. No tail Is visible on the
pelts, and its claws are small and
adapted for climbing trees. Its home
is near the -. Elias glaciers. Another
unknown animal, resembling the
mountain sheep, Is said by the Indians
to live on the HIGHER mountaina Of the
mainland. and Lieut.. G.. T. Emmons,
[. :. n, Is inclined to credit the re-
port
A direct disiutegrating effect on the
brain and nerve tissues is among the
causes assigned for death in electric
shock, but an investigation by DR.. A
NJ Blelle has failed to reveal sucl
changes. 1t would appear, he thinks
that death is entirely que to a contrac
ton Of the arteries produced through
all influence of the current on the nerv
Gus system, this impeachment to the
flow OF blood being more than th'