New-York tribune., 1871-12-29

rat" for owing to tins fact the transmitted viba.
i%ns Sr s~aSs ali T'sS conc being svodod
large house tho greater number OF you wonn no. % 90 aI
have c0n,rvcd This dcicat " suspended mirror WHICH,
hanging by hair that Is fastened above ana DrloW cn
tat ns s w.a III The mirror Rejects beam light the
1t Is now stationary brt tho instant tnc DOW Is
ton becomes each moment more violent, iii now tho
srot of light swecps over the whole srrern ana you
result reproduced. BY the usc Of single silk thcr
instead Of hair. the dclicncy Of me nparains - so
present slightly lower The note OF the lrst forK ny
loading II with nickel cent attaching II WIN way anu
observe that the second fork with the mirror now Tth ho
attention to It's call tho spot OF light remains S'toh
Let us make an application of experiment In tsr
Of very small elastic rods fastened at one enh
Of y,atng only When s WT h pa%ncs. nSi%s to to
delicate nerpa fr connected with it, and we lav" the
due to Pacr r, rate Hi sr" o ir r,. Ha nc !"
nously m9guiii"d is the screen. Hut ior te Iui IL
a1a OF M as sa to make H"H c SS o SS' ys
home this evening open piano. ana WINE pir",inS
c"ar tSe oh lOSs Soca &c" s M example"
sounds. aud You Tili lind that he M stGns g. Tn , AZ" m
viii lie set N vibration and viii echo hack to you IN
farof cho;tly way hc sound yon I n"r i1 d 'r% brrr
locked up in i,s bones srancel, shaped cavity an
instrcnt with not less than 1900 strings tuned as wo
nerve famcnts ready to transmit to thc lraln the
sensations due to different notes. drawing Of y
nartiful1iy dc.crihcd by thc M,rchcsc Cor
the screen and some Of the G sinS' can a% DE- s i'
Of number Of notes reaches it, the compound tome -
analyzc with its constituents the corrD.pond'ns cords
viire IN the piano experiment. AMI by thrT aclio3
the reproduce the appropr't" srhsat.o"S'
HOW WI HEAR SHORT QtTCk sorSDs
The two contrivances have described are well fif"d
10 make us sensible of sounds which sufficiently pro-
ain ll1pr ruf
vibrations by the sympathetic apparatus in tho ear but
IN those cases whcro tho vibrations though powerful
arc very in number, 1t is probable that me c"nS am
would fail Ia take cogizance of them lna ~ ,"y G
rr prolalIy short qulCk sounds r. h"ra"u ny
q singh blow or impulse. ard yr IL u j,t ,.eS SV @
na" iSn been rrovdcd for cmriousy enonrh hy nitro.
ucinS into t." STRANGELY shaped caiy .I y r;hcr or
heavy F%d nodir1 wr ,a % lrntn hr we ad psr
cr- Of cilcarc"us sand imb deco among ti u',n' @
wien thry tend t0 vIbrae along with tie NarI wh'n
fla th cavity aud acting - dr1g to str'tch' 1hu hu'
stimulate ,lcII into activity. ......,,,o,
hold il, my hand long inda-ruhbrr string stretched
| by u weight II ras" the string si""i lie %eisn,
readily follow. and the snne l. MOI elnhia,cn n"rs
ti.n before but wien attempt suddenly 10 iH' '.e
s:lin, tue wcieht reSisi- tlc string /. Sr', n @
and il ia pis .j,e 10y QdirE j'Ik t. cause H. Su
&C.. 10 sc,nra. f,,l the weight THIS hISI form OF 'ai
apparatus /, ta" mpc,'' r ,Sr at ni~ "hers M
complex coarivaicL' aic 10 greater u 'o''
TINS il woud seem that nature has provided man with
O m,st elaborate and complicated lir-c "i apparatus,
with which II Is Iriccdhlt 10 rfrrE' anu u'''' |if,
several thousand rmp'' tonc. ami the humber" ihe'r
possible coalhn tlos II. oI cnnr'', infinite iEh %.
the dclr"to required to actp '4ch an lhS'ii
in 0ylcr rs Strings properly Tri6hli hh s'r.'chu ny
rods all IN time Day after day. during th lT's" r 81
growth and waste. to which 4. IKE Ia" rest of the bouy.
is constantly subjected! IL gives Us II" care. "" never
th,lk Of ~ III our rn.om way We supply onrs"Er"
with such food We fancy, SOM OF when ~ sin - ie
required for its uSr, and 10 hccOln" cN'nIiiy Hcorlo
rated into li-sics-hy the aii o an 'lS en- unieit
hand whose clcacy of operation u paH'rs or LouEhi
Ana VIII wh3t may ,GG ,. 10 Us . lhis same
beautiful aud complicated apparatus, LOT "iy on .hr
widest OF sava.:, I0cn. hat Nkowsc on may OF t"
higher aninll>--" brit"s that pciisI''.hi with the
same fond a7mhrciu- care prtscr'csh 1t Tor th"in III
Uricr durn: tI"ii i''S.
MEANS ASp Results VOCAL SOUNDS COSrrtSTEp
II you were TO tell thonch.:ui WHO happened to
he quite iocant the mechanism and action OF hc
voice. that there l!yn. beings who cndmvorcd 10
cy press their wshc. thoughts AMI feelings merely by
the aid of mechanical vibrat ons us causing tho parti-
clcs Of the air to SWING Ike Invisible peudruma. bacs
Saim Se 'u y the poverty would
hastily conc!hdc that orly few OF me silnpc.i aug
a uncc clumsy. IIo would tell you II was con
Ses Of cy or s or ca % possibly Of hnnEef might
mpsresty xsssca with oSS ssW ptns" he HrV S Se
s ~Sa Ssss s%s tina ssa, al f1fss Sfa% @
similar In general character: llat It w"n,u ~ NJ
feeling. And yet how wonderfully oach one OF us EN-
truly .uporhuman imr"6ars upon ana commits l" .hih
an inime vaIetv Of thoughts feeling ana IDEAS "Lich
times We po'r forth IN orrcM's in seen IN, IN NhanS,
| the means are utterly Ovcrwhelihei.
Think also for moment OF that glt by when we Trad
the stories written III" inv ,nc waves of The ar now
instantly interpret a'd dia,ntangie thcir complex
tie. s .ey roll N N l9Wgd I. 1". Tb nwe1 n 70 sr ani
speak gfls, which, froil purely physical ana ,ithc
| natic1 "'andonts are absolutely nacniiirent' nl
| wr-thc pOs,rssors of such powers l. II " ="
that they been bestowed Oh MS only to he sat
present. Do they not point TO auIe i"r our race
aocOrds with thrir Hpressibe Richness and grandeur