The States and Union. [volume] (Ashland, Ohio) 1868-1872, 1868-08-12
speech of theISenses.1

t.is5upt ViscGE IT. iifE; ita.!fE.tTI.T>
There are thirty-one pairs of csm-
pound nerves. in the human body, the,
sensory and motor fibers Of which are,
so commingled as to renderiit an Inn ;
possible undertaking to separateR them
by any means at present known y Now,
if, for instance, a needle be stuck into :.
one of'the fingers the sensoryo afibefs !,
take the. imrression Through theSherFe
and, the Pesterior root ITO, the spinal /,
cord. and thence to the, brain, The,
command goes out to "draw, the ioger
away. The man LATE travels d6wnitfs
spinal cord to the anterior root,p and =.
thence through the motor fberseofl the
nerve to the m1scles, which Immediately
a;t, and the finger is at once removed.
Al this takcsp place WITH great rapidity,
and yet With nothing like the celerity
onGs, ina gired,agTf SIotSssS six :.
IsdThs rcsoa1ches of iHeimholts, q dis. 4,
tinguished German Psychologist, have ,
shown with great exacitnde, the. rats.
ofespeed With, which :, the. nerve huid E
travels and observers have given
a great deal Of time and patience to this
and Kindred questions, AS the result
of many deliberations, it twas ascertains
edutl1at the nervous fluid moves at the
rate of about ninety-sevepi aud youe1
tenth, eetrin a. seconds iNew,s Islect- /:
rioity travels With, sa.sspeed exceedius
100000 feet in a second, and light
ever 9QO, 200, 000,r A Shooting, star. 4.
moves, W. tth vi city of, 200, 900 feet ID.
second, and the earth, oin its prbit
around the sun, 100, 900, A cannon !,
bail has d mean velocity Of I, 500 feet
in second; an eagio, 130. and a loco
motive, 95. We thus perceivei thRs
nervous. huid has nolveryafemarkeb1a /.
rate ofspeed; aszfact z which, among
many others, serzssstdiiudicate its hons
identity With electricitysu6sW ae-r ;.
Professor Don ders, Of Utrechto Hol4b
land, has recently been. makirgd some
interesting experiments in regard to thei
rapidity of thought, which, are likewise
interesting By means Of two instrue
ments, which he calls the noematch;F
ograph and the noematchometer, he :
promises some important :detailsrI For.
the present he, announces that simple
idea requires the brain to act for sixty
seven one tbousandths of second for
its elaboration Doubtless the time re- /.
ouired is not The same for all brains,
and that, by means these Instruments,
we may obtain definite indications lre.g
lative to the mental caliberofo our friendsg
Whatinsa!uableins instrumental they would
be, for nominating caucusesfor gestries,
for, trustees ofcolleges, for iperehantsR
/ in want of book-keepers in short, for /,
all having appoiptP enbts 81 aQyL kind to
make, &C, o.,rh tsoy edT J7sY yeH
For the eye to receiyeian impression /
requires seventy seven, one .thousandths I
of Sc, iond, and for the ear to apprei1 4
ciate sound, one hundred and forty
nine one thousandths of a second. are
necessary, The, eye, thefore, acts with
nearly TWICE the raPfdity Of the sat;-
Gdzdry, for june . 'a,oie,3 !. 9hl ... rlnA'
, SFRAEdER.A H ere boy, where does
this read go to ~ Boy ~ don IT know
where it goes to, but you can always find
it here, about this time Of day"