The Red Cloud chief., 1877-05-31
Yns o ov sCikycs


~ Csss' Gy~s ass. - tA. p~<R
The syes % snAny snimaas-thS& q
ea,s. for ins.Ancs->xh'hs, = p~ca,a-
hriliixnrr. shsch is peculiarly nstE~
shs. in ,h. dsk. 4; vN srmsr
thought ,hA. The eyes Of sash aasyas
emitted iish; s~nsss-uss~eiiy. a.
snly ,hcagh, light ccaa 30 tAasms1~s
BY The human y sns'~r tAs tns ~uSS
81 paaioa. The hfslitancY. ho-sv~ a
;he eyc. OF sh~e animals a csas~s ~ Z
acarr-, 81 riit,srinx at~r, eai~i -
uar~um. which is~s t~ainsl 's~ rstiaA
apa 10 q powerful rra~tss IL psrt.t
darkness. 10 Ugh, IL observed IN -
v~ fat which has t~~n -tAhlsss,
hy very careful e~xr~stmsa.A D.. sevA
,h~l~ss. . very snail ssnoun; q hgsk.
s~assesen; io produce n. laD!n-1s. .
pcArance In them
Gss..si.s ~ p,.-,ssst,y-
The Applications of e~l~-sEtetiy $500
20 he endless. and DON. AFTER marA 81
rerim~n,in.. r~sf~ctson e saa IT,
rvsrh~i in . machine for s.~csrsc -
craving. The article IN 10 sasras~i ,
pisc~d uni-r one pol- 20 The tA,ary
The plate to b. engraved = pls~i
under the other pole ~ The battery. "a
a ted movable hy q cfanh Tbs, pis
q provided with an engraving -
The battery having b-cn put ,n,n saS1
an ivory button movrs hafroniAIly 5r,r
the articles % ~ engraved when -
touches the metal type or the llns o;
tie eugravins-whlch mast. of ogr~
he . conducting su,~,Anos-ih~ currrn;
IL closed. and tho engraving tool Az
other I-,lc clicks upon th" plate unssp
meath q. and r~prpincr~ tho point The
tracer gu~~ over the pattern horialnaily
again and again. anil in amafvelss4,
way . giorihsd o,py OF the otnmsn osl
stnal gru~s beneath the s~uund g-lo
This Is cutting out the engraving 80
the engraving Is "a IL ra.s~i the pr
ocas is reversed that is, the h"TigenlS
lines are cut by k~~pins b ourTrsH
closed during the tracing IL them. ani
the points sIe l,ft by br-aking the y
rents .; those pointA By the applioA
ton Of the same principle, wu.i -.
craving may he ottainci Of unusual
finiah.
tChassssi esd Dissa.sss
That the diamond Ia merely a cfyaa
line form OF charcoal mos, I-sr~ons
have heard stated but fcw prutAhl,
have met With the facts uisn which
the statement In bascd A very inter
esting accoun, of experiments ty ~tlCh
I~vols,rr established the identity ~.
been given by i'Iuf. Roscoe. BEFORE ne |
famous Freedman lsTan bis invest
Cation 10 MAS known Tia; d.amonA |
might be e~voporaisi 10y e~sI-~utr -
great b-a; but had b~~n observed that
this evaporation could ms, h- p~1formYi
IL the crystal were surrounded by char
coal The questions which issois.rs
proposed 10 himself we're. frat. ~hAt s
the actual process Of evaporation AL.
secondly. In whA. way docs the NJ
unity Of charcoal interfere with IT.
Step by step he arrived al ~ha; hSs
commonly been acs~pted m q ootnplets
and conclusive ans wer 10 18th qu~s
tons. lie ipt subjected a diamond "a
the heat Of a powerful burning glass.
under which 10 gradually disapi~aI~i
without emitting anything tn tho No
ture Of Visible smohe ar vaI-br. OF l~As
ing . trace of "a solid matter shat
ver Under great heat the diamond
had simply vanished. lie n~rt sub
jecissi u similar crystal to q lower 10
gree OF heat. and found that the ia
mond. instead Of disappearing Alb
gether. lost about a quarter only 81 ID
weight. IL was. moreover. ot>erS-i
that the reduces; ston- bsca ns covers
with coating Of what APPEARED % -
soot or iampblark. showing. the sri-fi-
mentsr thought. that the diamond VA
capable Of being r~-iuc~i 10y heat alons
u simple carbon. AMI that II wN IN
itself only carbon In another form. Tbs
presumption h- went on to ~~,ablish.
He burncd-still by means ~ lenses
diamond In q known quantity ~ AsS}
and found that precisely the sains 70
suit had been arrived at N would have
bern attained by burning Garrison IN a
confined volume Of air. Thr fssson
why 1t w& impossible 10 eyagoraie .
diamond surrounded by charcoal 80
BOW evident The diamond. t~ing pure
carbon. could not resolve itsslf ~
carbonic acid without the oIyg-n ~ ,h~
air. and II VA just this essential -ie
ment that the surrounding charcoal IN
tsrcsptnI.