Evening public ledger. [volume] (Philadelphia [Pa.]) 1914-1942, 1919-06-30
PRoDICIES OF INVENTION
WHICH WAR PRODUCED
The Record Of Scientific Ingenuity In
the Struggle Is Unsurpassed for
Tragedy and Romance

Y tnn, ~
III. ran', Covlns'oh' iorhleTiE one o' 'ne
-, h ihe's' was torpeooeu' ro'tu
,,,a.as,.. ."' vas nuine"uru , pounu anu % 1iu' %
s ,;s ""s "'''in easy reac',' IL. ioSo
oron. VIII. ia.u ] on's siN ne'hoers VI tne
oror ,,a. t .L ''s.eu '" W sshlncah'' nov
tbe IJrh ,;ra.n. ri o :" t.,, ~,
the l. boat menace n.,s no yot hr No MEANS
conquered and that Amorican ingenuity mad
not devised the antidote for tho neriI which
had driven MS to war
The impression was erropeors ne were
many Others relative to tbe ;nyent;voness of
the Entente and Germa,v Not onIv ;s any
comparison along This line overwbelminoIv in
favor of the victor. but II identifies tbe mi.
versal conflict as one Of tbe most nrodipious
spurs to iuyention in tho uorld's cbron;cle
New light on the mappitudo of tho accom-
plishment will probably be forthcoming for
ycarS.> There is alroodv at hand bowoyer
a marvellous record of the wav in which on.
gines of destruction mct their match in do.
fcpsive weanons new offensive Instruments y
we're evolved and of the fashion in which the
race of mental agility was Sustained untiI
the last shot on hrmistice Dav.
When the two mn ior problems were solved
civilizations victorv was assured Rut nc
inside information was extremely zeaIouslv
guarded, the public in tBe first fortn;pbt of
the month of July. 1918. was wary of on
timism. 1t did not realize that the tank.
the most conspicuouslv move, invention of the
war. had nut an end forever to German stale
mate tactics and that the dentb bomb and the
hydrophope had doomed the submarine.
IN 4 so,so all throo oro ya,Loo ;,ro,t;o,s
| ,,.ho.,, C.,o, :, ~ e,..,.. -. 49,,
pr;.;,h ". " .,.I,i. - .:,S'I an i'.on' W .m '
'''' -" '' !" ""P''ois rhti'i'" w 'h' iu'i
oi,,o o ,,I sa'p ". .N' 60 pIl
hnforo tho ,r.,. LI" Ia. IL.
af poo.;a III snl Io.';,oI W. A., ..".,m,; ~
,,a,,n '' "au ue' 'i'.u 'ne ,d.Il piuai
~, o,;,,,,., ,;t:.: ~
"a,in n,', "a 1n,, ~ rIIs, gun. s.!t ~ .ne
ran., st =. ,.;,;aL ~ p:o oone. o", li:i
e., ,,,,rro,,o ,.ai,a a - tns IT. Co..
prnhohI,. ,,;i;.au, .enn. n''
o,, Di, Nv a'!l'a.s .,i, s.,Le. , y. was er.l 80
,i Eor,,u,a ua anu Wv . ~ ~ II
CIV CIV h anS s. M"H vo',p.s,s hne1 .nE ,o,e ee"vu .h
toa., .,noi ..na.ona sorsom,' ,,.aI,,;, .ne
,hstoo,oy - .ho ha..,o S. "e '''i
,rLo fua. t .i'a. 49, ... ,. --
,;o.',.oan,'o l"l as t;oo, Wv aL ;Ia. .n
, ~, ia, nj, .nun n:rs ilApUL sans
M? m"? NV Juo'i"u r ' AIMS C"u!liou.eu 'i!,!
r,nt d.tI' D. ~" a.; .ta ro
hs-a., en,,'e e,,,a.n,.; .Lo Wv A. ., Wv -
:I sa, =: ''"s Wv III In, ''I 'iol VI ,
i:..i. Ill.,. -,...-.--
I,II,, 'nan
anu ot.';rI 'tpnu pn:.:'. un' as lne
.1 rnotoeaS otIaouSn .t ] n,is,Sn 'ou.ro, M = ot sea
Cermany Its conouest bocame denondent IN
the efficacy of listening apparatus and some
weapon TO DESTROY the craft when il was in
visible. In the evolution of both Americans
were strikipgly successful
Although the French devised a very sensi
tive sound detector. the American bvdro
phone developed by a group of our inventors.
nroved by far the least fallible Its details
have never vet been disclosed 1t is known.
however. that it was at once adopted by our
Allies. and that under ideal conditions it's
range was from fifteen to twenty three miles
| The depth bomb completed the work.
The paravone. Of the tvpe recently or
| bibited in Ipdepepdepce Square. was another
exceediuplv ingenious contrivsnce IF nut
an end IN tbe risks tho Allies had beep rim
! ming in sailing through mine fields. Ameri-
can resourcefulness was responsible for this
machine which somewhat resembIed the
,'watcr kites used by mineswpeners
| Parayancs are steel floats with tornedo
| sbaned bodies and borizon,al nIsne near tba
| forward ond The mine Slides along tho
| nar.vane cable and is carried clear of tba
| ye.sol's bull When II reaches tho nrotector
il is caught in a toothed Jaw which seters
the mine csbIe and let's the mine rise to the
waters surface Rife and machine pup 6re
destrov the throat to shining Tins revealed
!
rr,ur oh;of coru.r irvort;ors of thu ,ar
| ',-,..
40 NOT strictiS speahlng' come under Ine
heao OF noVelties' II was KNOWN "hen Inc
hague conferences me. 'nat ,he use OF poison
gas was a possipillty III inodeIn striie. Inc
peace paiace ueiesa'es, lnciuuihs tne leu
tonic ones pieuseo themselves 10 refrain
from such saTasery'
None the less chio.ine gas mace lts ap
pearance on the oattieiront IN, APRIL iolo,
when the Germans ior the nrst time employed
1t against the brlush; Inc nuns were 100
new at thiS uespicaole game TO realize its
pfevanins St;,u.aS a dausus -, -. he ,J;n. Upean