New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1878-03-25

Iw'N show you The experiments 81 Ii..oio''. who're
we have tuuingfofks tuned 10 cGrh other at dNerru
intervals and they each caused o. vDrlc 30 ne 10
produce reflected images scrcgnL There a' certain
laws which these follow which can De worked oht by
mathematics 80 that ean understand The relation Of
Vibrations to each other. She vibrations caused by
Iissaious's forks are simply conditions " tie pendulum
vibrations. Il WI simply show yon tho maEn,r in
which THE vibrations appear when one fork
is vIbr1ted perpondicu.ary 10 the other.
, VIII throw beam OF lslt from the lantern
30 that strikes : hirror IT, beam of light -
hocted iron. tie mirror u he first .rk Which - vcr
Kept IN perfectly even 'N7 - mans pi i"t tro-
magnets The forks slightly Out oi tune 80 that We
cact otbrr All Tho iine whoa me Interval. aIc moi y
acy tuned. and you vii perfect haure III Oh rep
forward phases I'm H. figure known as tie wavr+ When
cfesfs agree With each ohcr Sc have perfect nl
backward and forward IN ne NEGATIVE and positive
p.,l ~ We hto cr ll' aeh h9 prtc 70 p i l
Now y0n that circle TUNED 20 ~ 10 iUIm a cp-e
tbeU f. lines cross ma 10 sack again 20 a circle II All
next one VIII octave with ns double the number
Of vibrsons Thes. are also sipty ou of tune 80 a.
produced by the O.tavc different from the Other
Here we have octave which resolves itself the
don where the G-ure will he changed We vil taxi
tLat Il somewhat oupcacd-tLat oHe-iOurtl above
The Fundamental note 1Ae nearer the notes are the
more complicated is the figure. There otter intei
vas when can be SHOWN, but That Is not necessary.
Voice is produced BY vibrations Of what are
known Us tie vocal chords The vocal cloI,l.
are little meuibIdnes situated IN the throat
which. by the action Of certain muscles
can become ana lax, and tho which l. driven
Out by respiratory c3r throws these little chords into
vibrations. aud they transmit TIC vibrations TO the
column of air. Now We have the cavity Of the mouth
which contains the teeth and the tongue the hard palate
and the soft palate snd the roof Of the mouth and when
We eDunciate certain words We produce the vowel
sounds aud the cOusOnant We make use Of the hips la
producing what called the iabials. We certain
powers back IN tho throat for producing the g,rl'
ard ~ tonsue Tor producing what arc called inc
g@ss soGne, ro.r al Il, , ~ a or lv o.
TIE vibrations set up by throwing INTO agitation the
vocal chords, which struck tHc principle
tn reed pipe In the meOdo0n; the iced pipe being sim
ply tongue Of metal aperture, ana thl5 throws
INTO aC1taon column sir contained apartment
mechanism OF the voice tie vowel sounds ana tls
Of those which are not pure musical tones
which ore. generated In Ordinary conversation
BY combining the TWO We have spoken language.
II we the voice to throw membrane Into citation
Wlch has any electrical connection with battery and
We VIII then produce what called the singing tele-
phone. Now have congregational ana singing clo-
phone npon tbe table, ana sAaii ASK my assistant Dr
Miller 10 tell me when he is ready and when be sings IN
the mOutbDlece Of the telephone 1t VIII he heard here
by this guitar body Ia the place where the
5a 3, vo GS OnSd rmy 10 oI ie to Of e ctar Ga
cure uPon that l. soft iron Plate and The ends OF tnis
magnet brought opposite TINS IRON pe. Upon TIE
other end. where Dr. Miller g., here is membrane
made OF paper and In the centre ate piece OF metal
which Is III centre OF TIC circuit and The pin winch
makes OF breaks the circuit tie vibrations Of his voice
brought against The membiale Ile tunes sang by
Dr. Miller distinctly heard but with the quality OF
guitar music.
By combination Of pipes in this organ lihe large
organ in the hall there Is What called the hEmdn0
which gives very curious effect illustrating II Oh the
organl. IL simply the reed pipe, rs it is called hicn
shortened according ~ the description given TO me by
one o the gentlemen Who manufactured the organ Al
Is boxed up or confined ana carried Of to great dis
from the organ and opens IN tbs case, IN the ven
tlatOT,