BSD OLOUD, MIB1AIKA, OXI1F
tNriovED umroiN iiueinatiohal
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Lesson
(By 11UV. 1 H. 1 IT.WATUU, D. D.,
Teacher of KiikIIhIi lllbl In the Moody
nlblo Inatltiito of Chlcnuo.)
C"H right. 1e. WeMern Vewapapur ttnlon)
THIS WEAK,
NERVOUS MOTHER
TclUHowLydiaE.Pinkham'i
Vegetable Compound
Restored Her Health.
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AtMA?yc? er0wan& am rtcrtOfwetYjr
r WAS n foregone concliiHlon thai
mnny of vie Inventions born of
the needs of war would he turned
to peace uses with promise of
great lienellts. Already the ex
perts of the bureau of mines, who
assisted In the war work of nor-
feeling the microphone and geo-
phonu to ascertain the exact loca
tion of enemy guns arc using these
dellcnte Instruments to locate en
tnmhed miners, and to make easier
i and more accurate various mining
Iterations. The principle of the microphone was
applied In ascertaining In n general way the loca
tion of a ship at sea. Toward the end of the war
the device had heen bo perfected that It was pos
Mble for the microphone listening station to cal
culate the exact position of enemy guns after hear
ing the shots. The speed with which sound trav
els, was, of course, known and served as a basis
jf calculations nt different stations. With these
Instruments electrically connected It was possible
to record the exact time nt which the sound
reached them and then, by a series of rather In
tricate calculations based on trlangulatlon, to
local o the object.
The geophone Is bnsed on the same principle ns
the microphone, excepting that sound waves are
recotded from the earth Instead of the air, and
It has reached such a high state of development
under engineers of the bureau-of mines that It
bids fair to be one of the most useful applications
now being made of Inventions due to the war.
Geophone Is a Seismograph.
The geophone, though small, Is essentially n
seismograph, since It works on the same principle
as the ponderous apparatus with rhlch earth
quake tremors are recorded. It consists of an
It on ring about three and a half Inches In diame
ter, within the center of which Is suspended a
lead disk that Is fastened by a single bolt through
u mica disks, one of which covers the top nnd
the other the bottom of the ring. There nro two
hrnss pieces, the top one having an opening In Its
enter to which Is fastened n rubber tube lending
to n stethoscoplc earpiece. These enp pieces are
fastened with holts to the Iron ring and serve also
to hold the mica disks In plnce.
We then have really nothing but n lead weight
suspended between two mica disks cutting across
a small alr-tlght box. If the Instrument Is placed
on the ground nnd anyone Is pounding or digging
In the vicinity, energy Is travsmltted ns wave
motion to the earth, and the earth-waves shako
the geophono case. The lead, on account of Its
weight nnd because It Is suspended between the
mica disks, remnlns comparatively motionless.
There then Is produced n relntlve motion between
the Instrument's enso nnd the lead weight. The
result Is that a compression nnd rnrefactlon of
the air In tlie Instrument takes place. Slnco the
rubber tubo leading to the stethoscoplc earpiece Is
connected with this space In the geophone, this
rarefaction nnd compression Is carried to tho car
drum. Usually two Instruments tiro used, one for
each ear.
How Direction Is Determined.
When the two Instruments nro used, It has been
found thnt tho sound Is apparently louder from
tho Instrument nearer tho source of tho sound.
It Is evident then thnt by moving tho Instruments
properly n point can ho found when tho sound
will bo of the same apparent Intensity In both
ears. Tho direction of tho sound Is then on n per
pendicular to tho lino connecting the centers of
tho two Instruments either In front of or behind
tho observer. Further, observation will show
which side. Direction Is quite nccurntely de
termined In this wny, The sound Is not actually
louder In ono ear than In tho other, but tho ear Is
capable of distinguishing tho difference In time nt
which tho sound arrives In tho two Instruments.
Since this Is the case, persons who nro slightly
deaf In ono ear nro said still to he ablo to de
termine direction with tho Instruments.
During tho porlod of tho wnr, engineers of tho
mining division of tho bureau of mines were
engaged In determining tho dlstanco thnt differ
tnt mining machines could be heard through tho
day, shalo, coal and tho mine cover. Measure
ments were mndo also of tho energy required In
order that they might be heard definite distances
through clny, shale tnd coal, as well as to de-
SfSfJ? ?&CltJT GX&fWCMr jr
termlne the distances nt which the shock waves
resulting from the discharge of various explosives
could be beard. A brief Investigation of tho
factors Influencing the transfer of energy from n
mining tool to the clay and coal were also made In
order that recommendations could be made ns to
the type of mining machine which could be used
to accomplish the most work with tho Unst noise.
In this connection It was found thnt sounds
were transmitted only nbout hnlf,n& far In clny
ns In shale strata and nbout one-quarter ns far In
clay as In coal. To glvo some Idea of the sensi
tiveness of the Instrument It may bo said that
pounding with n pick on the bituminous conl can
be detected for n dlstanco of 000 feet, nnd tho
direction determined, nnd thnt pounding with a
sledge can be heard as far as 1,150 feet. These
measurements were made In tho Pittsburgh conl
seam In the vicinity of Pittsburgh, where tho coal
Is somewhat harder than In most other bituminous
coal beds. The explosion of n one-ounce charge
of dynamite was detected a dlstanco of over 2,000
feet thtough the shale strata.
Sound Tells the Implement
One Interesting fenture of the Instrument Is
thnt the sound transmitted to tho ear Is charac
teristic of the Implement producing the wound. To
Illustrate: Twelve mining nnd carpentering
operations were carried out on tho coal rib. An
engineer of the bureau of mines who hnd never
used the geophone nnd who did not know what
tools were to be operated was able to recognize
nnd nnnfe nine of the Implements nt n distance of
several hundred feet through tho strntn. Tho
other three sounds were occuratcly described, but
the toojs were not Identified.
Now thnt the wnr Is over, tho bureau has turned
to the development of the Instruments for pence
time uses. For ono thing, It Is believed that they
will be of great value to minc-rescuo crews who
limy bo entering mines for exploration nnd to
locate miners who may have been entombed after
a disaster. Tho tests so far made In tho vicinity
of Pittsburgh show that n man pounding on the
coal rib with n pick, pleco of timber or sledge can
be detected and located from n point 000 to 1,200
feet distant. This distance depends gredtly on tho
character of coal upon which tho man Is pounding,
and Intervening rooms and entries seem to have
surprisingly little effect upon9tho distance or the
determination of direction.
Pounding with n sledge can be heard from 200
to ;!00 feet through the mine cover, depending
upon the quietness of tho dny outside, since any
wind grently Interferes with the successful opera
tion of the Instruments. It ylll nt once be seen
that when mines nre not too deep they can be
"explored" from the surface and It will thus bo
possible to llntl nnd locate a miner who Is pound
ing. At the experimental mine In Hruccton, Pn.,
n man has frequently been loented through M0
feet of cover within W) feet of tho exuet point
where he wns pounding.
A study Is also being made of tho dlstnnccs that
pounding on rails and pipes can be hoard. Slnco
mils are generally burled In the enrth or dust In
tho entries of n mine, nnd slnco this dust dnmpens
the transmission of the sound, the sounds ore not
transmitted very well. Tho snmo Is true of pipe
lines. However, If the pipe lines nre not burled,
hut are laid on blocks and ties, the pounding can
bo heard great distances. So far no lines linvo
heen found long enough to show the limit of tho
geophone. It Is known, however, thnt tho naked
ear can get sounds farther than 2,000 feet.
Used to Guide Tunnel Work.
In metal mines expenslvo surveys have some
times to be mnde In order thnt tho nppronchlng
tunnel headings mny bo brought together ac
curately. Slnco direction enn bo determined so
well with tho geophones, It Is thought that they
can bo used to guldo such work. It would only
be necessary to go Into each heading and locnto
tho direction from which pounding In tho other
heading was coming.
Observations mndo In a nietnl mine recently
showed thnt direction can bo determined much
more easily In rock than In coal. This Is prob
ably duo to tho faot that there Is some reverbera
tion to tho sound from n hammer blow on coal,
whllo on stono tho sound Is clean cut It so hnp
.pened that In this mine a rnlso was being driven
up, about six or eight feet distant from a shaft.
Observations were made in the drift of the sound
from the drill In the ralsa
and u point located on the
side of the drift behind
which tho drill In the
raise was apparently op
erating. The survey murk
was then csccrtutncd to
bo from two and one-hull
to three feet to the right
of this mark. A drill
set up and operated nt tho survey mark did not
break through Into tho drift, wherens n holo
drilled at the point In tho drift located by tho
geophones reached the ralso and proved the geo
phono observation to have been correct within a
few Inches.
It Is also thought the Instruments will be of
grent valuo In preventing accidents from explo
sions when breaking through. In this connection
an Interesting Incident happened recently. Obser
vutlons were being mndo nt n tunnel hcndlng. Tho
pit boss happened along and asked to bo allowed
to listen. He put the earpieces In his cars and
remarked: "Mack Is tamping a charge and we'd
better move awa.v." He spoko ns nnturally ns
ho would havo done had ho been watching Mack,
and It Is quite evident that he did not realize that
the sound was coming through 800 feet of coal,
otherwise he would not have given tho warning.
Observations wcro mado recently of a mine fire
burning from 20 to 40 feet below tho surface. A
low rumbling noise could be heard ns If air were
being drawn In along crevices, nnd occasionally
Rounds could bo henrd from tho snapping and
falling of pieces of conl or rock. As well as can
bo determined, the Are area was accurately located,
but owing to the fact that tho fire could not be
approached from Inside, the data could not be
checked absolutely. It Is Interesting to note that
similar sounds could be henrd from only ono point
on the Inside of tho mine nnd that point wns the
ono nearest tho area as located on tho eurfnee.
In addition to tho uses enumerated, an engineer
of tho bureau has discovered that the Instruments
can bo employed advantageously In locating
knocks In automobile valves nnd cylinders. For
this purpose It Is best to mount tho Instrument on
a short Iron rod that con bo easily Inserted In the
machinery. Not only can a troublesome cylinder
be located In this manner, but the trouble area
In tho cylinder also can bo found.
APPLE TIME.
The crisp, frosty days of autumn are a sure
indication that the apple season Is In full swing.
Those who can pick tho fruit aro fortunate, for
the npplo fresh from the tree, at this time of
the year, Is unrivaled In flavor and temptingly
tart and Juicy. But tho privilege of gathering
npples Is no longer limited to those who live In
the country, for nowadays many families who
own cars nvnll themselves of tho opportunity of
motoring to the suburbs, where they may cither
gather n generous supply from unclaimed trees,
or purchnso the prlvllcgo of picking better va
rieties from the orchard of some thrifty farmer.
After a few of theso trips the housewife will find
that sho has obtained enough apples to supply
her family with a' vnrlety of preparations for tho
winter's use. So many things may bo dono with
apples that ono becomes enthusiastic at tho
thought ; they may bo canned, dried or mnde Into
fruit butters nnd Jellies, fruit sirup nnd fruit
leather. Even the pulp which remains may bo
fed to tho cattle, hogs or sheep, bo thero Is no
wnsto whatever In the whole process. Chrlstlnn
Science Monitor.
NESTED IN TOWER TWENTY YEAR8.
" '
Thero Is nn old English Bpnrrow that hni
nested In tho euvcR at Tower O, at Knst Somer
vllle (Bnltlmoro nnd Mnrylnnd yards), for tho
Inst 20 yenrs.
Fifteen years ago ho was caught and marked
with a bnnd of silver wire Just to seo how long
ho would live.
A new tower Is being built nt Tower O, and
ns tho now tower Is of brick nnd no constructed
there Is no nesting place In the eaves, and when
the old tower is torn down the old sparrow will
be deprived of n home.
Consequently ono of tho towermen caught the
old spnrrow (ho Is very tame), and took him to
Wakefield and kept him In tho garago several
dnys, thinking he would nest thero.
But when he wus let out ho mudo a becllne for
Tower C at East Somorvllle,' and has been ther
over since.
Perhaps, after all, he can find a plnce to
squeeze In at the new brick tower when bis old
home la ton down. Boston Globe.
LESSON FOR NOVEMBER 23
JESUS CORRECTS JOHN'S NAR.
ROWNES8.
WESSON TnXT-I.uke 9:-M.
OOUM.'N TKXT-arace bo with nil them
that love our Lord Josus Christ In atn-carlty.-Kjih.
6-24.
ADDlTlONAIiMATntUAk-Mnt. 18 1.33:
Murk 9:a.1-42; 10:13-10.
1MUMAKV TOI'IC-Jobiis und the Chil
dren. JUNIOtt TOt'IC-JenUB the Friend of
Children,
INTi:tlMi:OIATI3 TOPlC-Ilnity nnd
Nin row Jii(lmiictii.
bUNIOtt AND ADULT TOI'IC-True
nnd Kulso Mbemllty.
I. Jeous Teaches True Greatness
(vv. -UMS).
1. The occasion (v. -10). A conten
tion among the disciples us to who
should be the greatest. Jesus had Just
nniinuiiced his coming tlenth on the
cross, admonishing them to let his say
ings sink down Into their ears (v. -II).
They were disputing among themselves
as to who would be the biggest man
In the kingdom. The Imagination can
not depict a condition where rebuko
and teaching were-more needed.
2. The method (v. 47). lie "took n
child und set him by him." Tcnchlng
by object Is one of the best of methods.
In this Jesus showed himself to bo the
mnster teacher. Christ was qnalllled
to meet the supreme need of all teach
ing, namely to know the pupil and to
translate knowledge Into terms adapt-
I ed to the comprehension of the pupil.
He perceived even the thoughts of the
disciples nnd met their need. When
they were conscious of his knowledge
of them they were ashamed (Mark
0:34).
3. The teaching (v. 48). (1) "Who
soever recelveth this child In my nnmo
recelveth me." So completely Is
Christ Identified with those who nre
childlike In spirit that he regards treat
ment of them ns treatment of himself.
(2) "Whosoever recelveth mo recelv
eth him thnt sent me." Christ nnd the
Father are one, therefore whatsoever
attitude one has townrd Christ ho has
toward God. Rejection of "Christ Is
rejection of God. (3) "Ho that Is
least among you nil, the sumo shall bo
great." Tho one who In self-forgetful
service tnkes the lowest place Is truly
the great one. This Is the supreme Inw
of Christian disclplcshlp. In Jesus wo
see the ono who wns Incomparably
great Identifying himself with humani
ty. II. Religious Intolerance Rebuked
(vv. 40. CO).
1. The case cited (v. 50). Tho dls
clples saw one casting out devils In
Christ's name, but because ho refused
to follow them they forbndo him.
This spirit Is liable to seize those who
are really zealous for Christ. It often
expresses Itself against thoso who do
not belong to one's particular church
or sect. In determining whom we
should admit to fellowship two ques
tions only need be nsked (1) Arc devils
renlly being cast out? (2) Are they
being caBt out In the mum- of Chrlst7
The plnln Implication of Christ's words
In Matthew 7:22, 23 Is thnt one mny
even enst out devils nnd be a stranger
to the Lord. There Is u supernatural
work which Is not divine, so unless the
mighty works nro dono "In the name"
of Christ a Christian should not fel
lowship the miracle worker.
2. The principle declnred (v. 51). "Ho
thnt Is not ngnlust us Is for us." This
truth Is positively stated In Luke 11:23,
"He that Is not with me Is ngnlnst me."
When It comes to mnn's nttltudo to
wnrd Christ thero Is no neutrality.
III. Resentment Rebuked (vv. 51-50).
1. Farewell to Galileo (v. 51). As
tho time had come for him to he re
ceived up he set his face to go to Jem
sulem. Tho time of his sncrlflce wns
como and Jerusalem was the plnco
where It was to bo accomplished.
2. The Samaritans refused to re
ceive him. (vv.52, 53). This refusal was
due to the Impression that he was go
ing to Jerusalem, Their national pre
judices were so strong that they re
gnrded his action as n national Insult,
therefore refused liosjrltallty to him.
3. Jnnics nnd John vehemently re
sent this action of the Samaritans
v. 54). They regarded It ns an Insult
to their Lord. Their lovo was so vital
that nn nffront to the object of their
uffectton was most bitterly resented.
4. Tho Lord's rebuko (vv. 55, 50).
(1) "Yo know not what manner of
spirit ye are of." He did not minimize
tho Insult or question their motive. Ho
who knew their hearts was aware that
they wero moved by lovo for him. He
told them, however, thnt such Insults
weio not to bo met by violence. Re
ligious persecutions nro nlwnys wrong.
Tho spread of truth Is not to bo by
means of mnterlul weapons. (2) "For
the Son of Man Is not come to destroy
men's lives, but to save them."
A Fiction.
Thnt God being good Is tho author
of evil to anyone, thnt Is to he stren
uously denied, nnd not Allowed to bo
Bung or said In any well-ordered com
monwealth by old or young. Such n
fiction Is suicidal, ruinous, Impious.
Socrates, In Pinto's "Republic."
Philadelphia, Pn. "I was very weak
always tired, my bock ached, and I fell
oicKiy most of tn
time. I went to
doctor and ho sal
I hnd norvoua indl
gestlon, which ad,
(led to my weak
condition kept ma
worrying most of
tho timo and h
snid if I could not
stop thnt, I could
not got well, t
henrd somuchnbout
LydinE.Plnkhnm's
Voirotnlilo Com.
found my hUBbnnd wanted mo to try it
took it for n week and felt n llttlo bet
tcr. I kept it up for threo months, and
I feel fino nnd can cat anything now
withoutdlstrcss or nervousness. "Mrs.
J. WonTHLiNE, 2842 North Taylor St,
Philadelphia Pa.
Tho mnjorlty of mothers nowadays
ovordo, there nro bo mnny demands
upon their timo nnd strength; tho result
Is ihvnriubly a weakened, run-down,
nervous condition with headaches, back
ache, irritability and depression and
xoon moro serious ailments develop,
It is ntsuch periods in life thnt LydlaE.
Pinkham'a Vcgotnblo Compound will
restore o normal healthy condition, m
itdidtoMrs.Worthline.
INDIGESTION
Caused by
Acid-Stomach
Millions of people In fact about out f
10 suffer more or less from Indlcestlon,
cute or chronic. Nearly every caa la
oeused by Aclcl-Htomach. '
There are other etomach disorders whlof
alio are aure aliens of Acld-Htomaeh belch.
Inr. heartburn, bloat after eatlnx, food re
peating;, aour, cansy etomach. There are
many ailment which, while they do not
cauee much dletreie In the etomach Iteelf,
are, neverthelees, traceable to an acid
etomach. Amonr theee are nervouaneea
blllouineaa, clrrhoala of the liver, rheuma
tism. Impoverished blood, weaknesa, Insora.
nla. melancholia and a lone train of phys
ical and mental miseries that keep tbt
victims in miserable health year after year.
The right thine to do t to attack thee
aliments at their eource set rid of the acid
etomach. A wonderful modern remedy called
EATONIC now makee It easy to do this.
One of hundreds of thousanda of crateful
users of K ATONIC writes: "I have beea
troubled with Intestinal Indlcestlon for about
nine years and have spent quite a aum for
medicine, but without relief. After uslnv
EATONIC for a few days the xaa and pain
In my bowels disappeared. EATONIC la Just
ths remedy I needed."
We have thousands of letters telling of
these marvelous benefits. Try EATONIC ana
you, too, will be Just aa enthualastlo In It
praise.
Your drucctst has EATONIC. det a bis
lOo bos from him today. He will refund
your money If you are not satisfied,
E 'ATONIC
M Qron yodr Acib-sTOMAcift
ItiCbl
SANITARIUM
SULPH0 SALINE SPRINGS
Located on our own premises
and used in the
Natural Mineral Water Baths
Unsurpassed in the treatment of
RHEUMATISM
Heart, Stomach, Kidney and
Liver Diseases.
Moderate charges. Address
DR. O. W. EVERETT. Nor.
141b anal M lis. Llacalu, Nak.
Get the GenuineBPStT
and Avoid SU
CP in Every Cake
KODAKS
Developing, Printing
and Enlarging
Lincoln Photo Supply Co.
(Eastman Kodak Co.)
Dept K, 1217 O St Lincoln, Nek
TO SHINE A COLD 8TOVB
v;uic, im easy
Uom E-Z STOVE POLISH
jff Beady Uirt Ready to Bulne ac
JasjsjjjMsai aUBKN ft HAJtTlN, CUICAOO sjsjsjjajsjail
I A I til I d Patent Lawre'r.VvajlS?o?J
Z . r. . D-- Adlcand book IreS
btoanaaonabla. Highest reference, ttestierrleaa.
Tho Poor Fish.
First Flutter I'm euro la a dickens
of a Ux now.
Second Flutter Can I help you out?
First Flutter No; you seo whllo my
wife wus uwuy 1 let tho cohhtah die
and In order to innkc up for It I bought
a flsh nnd put It In the bowl, hut she
found out It wns a salmon.
A woman never thinks thnt a wan
thinks sho talks too much.
The Law of God.
Wealth Is n weak anchor, and glory
unnot Mipport a man ; .this Is tho law
d( Ooil, that virtue only Is Arm, nnd
ciuuint lie Hhaken by a tempest. Py
lintrnrsis.
If you would he happy let tho other
fellow do tho worrylnp:.
imm
r Nidht
Mornini4
eeoVbur Evte
eats- noaiiny
U2VJT1
lLtyWb
YiwfmMX
Clean-CI
x -J
Ms fer frea aVv Oa aa
C.OUes4aUM
1
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