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ONE OF OUR LEADING SUMMER FOOLS.
"HEY, GIRLS! LOOK HOW ROUGH IT'S GETTING"
Coatlaued from fourth page.
af belng able to go where aent. and to
?tthrrn to the ehlp that sent her.
"Btt thla important luttrument, the
abahlp compass, la now practically aB
aared through the efforts of the Aaarrt
eaa navy ln the development of naval avt
"Avtation ln thla country. and naval
avJaUon ln partlcular, has had a falr be
flaniEg only, and no further BUbatasttJaJ
irogreas can be made. ln eompetltloa wlth
etbar countrtes untll we continue the
;aark Iraugurated l>y Profeaaof I^ngley
en adentlflo linee.
Thomas R. MacMechen was next ap
Broached by The Trlbune man. Mr. Mac
atacben and Carl Dienstba^h were the flrrt
Vrltera, accordlng to "Alrcraft," a lead
lag aeronautic magazlne, to assemble l.i
proper r?latlon all the elements that make
up the n?>w acience of alr navigatlon and
to polnt eut the correlatlve part that
aeteorolgr. ellmatology. aerodynamlcs.
"AroataticB, ballooning practlc*, blrd
flght and wlreleea telegraphy play ln the
?rt of navlgatlng alrcraft.
"On tbe aubjeci of atrablpa they are the
rtcognized authorltlea In Amerlca," sayt
** ? test of utefulncas applled I
the aer airshlp
lr> 1P12.'' ?ald Mr Macafechen, "has hegun
to settle the foollsh controversy as to
*hlch of these types wlll, tn the future.
J*rform the g ? rh for clvillzation
"Ti..- t,itjyu ? Wlth tt.r arai it:
Trtpoli. the comau ' 'v',,: ' T':'?'
yaiea in Germany. In both of th<????
teatt af u??.. tha dlrlgfbie tnsde
recorda that already relegata ti ?
Plane to tha place of all small vahlclee?
that of an auxlllary. a craft not sufflclent
ly independent to undertafce the gn
* traveralng Itnmense throatgh
the alr at faater ?
"ng methods of travel, whlle carrying th
,IB0?t uieful loeds.
M'n actual warfare, the Itallana
l*o?ed that awarms of fast aerof, laupaa
"*ve only h moaqulto'a atlng when aotp
?*'ed to the- deadly executlon done by
JJheir aeroplancs. flylng at high speed
*?faUeri hundred to two thouaauaal fagt
?P. to be able to see w here to aim, were
*truelc by lnfantry bulleth. Thelr dlri
prtaa. dropplng large destrur-tlve bonihs
"?n heighte of elx thousand feet whlle
""^anleaa overhead, wen never
y W>t aalvoa of either artillery or tn
"^ae dirigtble killed more thin one
iplane Called tc
hundred soldlers with one botab
it the aeroplanes were not even
equip,ed for a great Luropcan war. b*
couse none of them was armed to realst
an enerny's air craft. Even with better
shaped wings, that now allow flylng
fast without greater engir.es. wlth two
motors. now used by the largest Oer
rnan aeroplanea, the oraft must not only
carry two, even three, men. but a re
gun, pletrty of ammuriitlon, and
fuel tO fly one hundred and forty mil<??.
1 milltary experts now reallM that
thla lnevltably means larger and slower
. and raatrlcta the aeroplaae'a
work to tactlcal Bcoutlng al the army'?
front That oppeotng aaroplanea cannol
attack each other with bomba has led
to the 'nvention of f'aptaln Lewls'a
small ma.hlne gvn, which h-is been
mounted on a alow Wright machine and j
flred lUtlllliaaafllllj from Ihe air, as Mr. j
Dienstbach and I predioted ln iMtl
would be eventually done.
"Bat even with the Imtro stabllizer
ar.d Captaln Etave's speed reguiator to
allow r.fflcerK more time to think of Ob- j
servatlons and lesa of balanclng them-j
the aeroplane is stlll as unsafe I
as when lt waa flrst introduced.
"ln all armles the pilot's sklll ls rated I
htgher than the machine," contiuued Mr j
Ifacatechen. who rose from his chair
and began p*V ing the floor. as If from,
that laoreaaed altlfude he might more,
perfectly foret.-.ll the future of tbe fly- .
Ing game. 'Nations ha\e hundreds of
macblaea but few pllota with the blrd
like skill Of Vedrlnes or the aclentlnV
famlliarlty with WlndB of tbe navai af'
flcer Lleutenant Conneau.
a machine that rausi aiwa>? eoav
prom !?<? wlth the wlnd Cani l I b* t< 0 riKi'l
in ecttOn, Every mtBUtl it deman'l
liumun direction tO reniain afloat. COB*
sequently, the humnn equatlon will al
remalti \ery hlgh. The flyei I
knoh Ihe air. The Britlsii army ls flrst
tralalag her pilots ln metoorology"
reporler had secn the aeroplane
make beautlful pictures in the aky, and
it was ,i llttle disheartenlng lo listen to
thi * leatlfaO elimlnation Of the dellcate
Inatrumeal as belng valuable in any large
Ko th>- Tribune man, In the hOpt
that a way might be found to broa.'-.-n
the posaibllltiea of the aerophiiie. asked
Mr Maeafeehen what. ln his oplnlon, ls
most needed to perfect that machine
? Navlgators and navlgatlng lnstru
rneata are most needed on aeroplanes,"
??The recent head-on coIIUton ln the
air of two Kiench offlcers, whlle flj'liU
through a Bilenf m.M. ehowd that the
handllng of Bguadrona of aeroplanes ln
cloae form.ition. eit'.r in for or ln th4
night. win ba attendad Brltb aa many I
f.ttailtles as biraa 6 u lorai aad
fog. And lt einphaaltes the abeolute I
r.eeeMlty for navlgatlng the craft liiHt-a.l
Of drlvlng them hlindlv, lik" auto'noblles
<rvr known road , Aerbp ' t' un
aMa to fly aafely ln arlnda much al
thlrty-flvi mllea an bour, and flylng
. i heing unavalllng. f.tvot
able wiii.Ih an 11 ' Baary before tha a.-ro
plane .an becosne aa naaful hb the
"Wlthln i1" laat tw< Ive montha 1 '?
Zeppeltn has made tbe greateat praetteal
advanee toward alr travel. IlKreBelng the
apaad of his alrablp fr..in Ihlrty-elghl t-.
forty*aaven and on.-wuarter mllea an
hour. Thla apaad enablea arery one of
hls flve prasent alrshlpe t.. m.'ike h.-a.l
way BgalaBt wind up Ih thlrty-slx mllea
"Hls recent voyage acroas the Qarman
Empire ln ten houra, on a foilowtng wii.d.
w-rth aot aaarly e<mai in bnportanpa (?.
his Btlll more recent performance on the
return trip thr.-ugh th* sarn^ storm that
? ?? < d the path of the Berlln-Vlenna
aeroplane race wlth the wr?>cks of eight
Tappelln t..ok talrty-two hour.? to mr:
from ilami.urg to Prladrlcbabafen agalnat
this atorm, but he arrived aafely *tth
twenty passrngers. But hia trlp of ten
1 pura ln traserslng aaarly 400 mlles over
tha North fceu wa., B atUl grcatcr prom
iso of whut the immadlate future bolda
in ih<- way of even largai an.l swiftei
airshipe. now promlaed by the couut hlm
Tha lesson la theaa raeant a> hieve
mentB Ib one of navlgatlng aafety. Ao
alrcraft sustalned by its own buoyam y.
iike an o.eau vaaaot, ls Inheiently safer
th.in one eimply Buatalaod by Ita maCiTlBal
ral ipaadL Nelther la safe enough for
pjbiic usc, unleaa theaa fVho bandle them
posaess inflnlteiy greater knowl?<lg>- of
j ,,w to navtgatfa the imhravaal ocean thafi
the flnest sklpper who ever aalled the
"And the crltic on the ground mutt ad
mlt tij.it a crevi oa ?! coantodtoua craft
l!::,t haf ronj't.int buoyaacy hat the bet
ter faclllty for prote.-ting BaTtgataOn than
the crew sandwkh.l in a small ma
chlne that must be halanced every minute
t.. keep afloat.
"Navlgution belng the absolute es.ien
tial of Buccesafully opc-ratlng alrcraft, the
dlrlglble at the very outset poseesses In
tu;lteiy superlor ad>antagi-s? corutant
buoyanry and unhamperBd faclllty. The
one remainir.g essentlal to make a safe
erafl Is Igoed Th* Zeppelina are fa.t.r
ti.e largT they nro bullt. becauBe the>
inrrv greater enflnes, galn very llttle In
gtrth and thus lacresai Iti speed. Th*
they tra\el thi ureater winda they
Aaked what the very marked dirferencea
between alrahlpa *nd aeroplanea aa be
lleved bv him tn exl.f polnt to !n the ItB
medlate future, Mr Macsfschsn s.ld
-An aeroplane pllot . an ne\ er loeallze
as perfectly as an alrahlp'a nevigattng
The alrahlp's priaaat taethod of
gettlng its locallty peitfectJj by Brtrslsaa
|g the only dopendable thlng, but lt Is be
yon I the aeroplane. and lta ateronomleal
kwallshaf l? far tno eomplicated for the
? The aeroplane must flnd' lt* way by
froqaeal landings over water. It muat
deprnd on a ?mother' ehlp; tn the air.
an :m airahlp. But the sum of aerial
sclence that can be erowdad lato the
aeroplane'a 'rub- of thoaab' practtce, to
fll the iiroaent aerial 'chauffeura' for
eeoaomlcal aervlce, is an open queation.
I.;vrger aeroplanes, wlth navlgatlng
Staffs, carry too few passengers to pay.
Thev are too expenslve for the aver
age man or the publlc Theae are only j
for the class that now afford prlvate j
rachta, or for use ln war.
? The small. cheap aeroplane wlll carry j
two or three persons at a speed of about
flfty mlles an hour for about two hun
dred aad flfty BaileO But over sea. say.,
t.. tho Bermudas. or even along the coast
from New York city to Norfolk, human
endurame forblds that they become rel
atively more than a motor boat to a
?If ls useles.i to fly agalnaf the wlnd.
and the art of properly uatng the wlnd
?The aeroplane will tntioduce a new
aport -owners who educate themselvea
ln the sclence of the air, elther for
pleasurs or qulck buslness trlps. wlll get
thi greatest pradlcal scrvlce out of the
? But the publlc will travel by alrehip.
1 -Mammoth multlplanes like Eulers
Buccessful German tri-plane make lt
tically posslblo to butld machln-s
thai wlll carry alrnoBt an alrnhlp'a load
if they land on water It can have a
blplane'l apeed. as demonstrated hy
Breuget's blg, fast blplane, whose few
uprlghts do not retard speed.
"The multiplane could crosa the ocean.
but aaldc from its ataff lt would carry
llttle more than fuel for the trlp
"The air craft of the future," aummed
up Mr. MacMechen. ?'wlll be a compoelte
of the aeroplane and the dlriglble"
What doea the reader think about ItT
(ootlnued from aecond p*g*
Becretlon of tears and attacks of aathmo.
Those In teak wood occaslonally auffer
from dermatttia. "rfhod.ly fever'* ls an!
silmrnt which affe.tr. begtnners ln the oc
rupatlon of grinding raK". ('hlmney
sweepe and gardaoirs who are ln the
habft of sprinkling BOOl UOOB plants to
protect them from alags are UabtS to bo ]
attaeked by eancerous ulceratlona Warts
and ?kln truptlons are a part of the rtstl
of empl"yment in tar and paraffln 00801 ???
tions. aQeetiic weldlag la the eauee ofl
inJurl.B to the gtgbt owing to the bllnd
Ing character of the Ught from the molten
There are many occupatlons which Iri
dUOB diseases of the skln. Severe eCBBWnai
of the hands and forearms may be the lot
of persons whose occupation reo.ulre.-i
thern to keep thelr hands and artna ln
water to a great extent. 8uch peraons are J
washcrwomen. domestlc scrvanta and bar
keepers. c'ooka, stokers and flremen are I
liabto to attacks of prlckly heat. owlng to
the hlgh temperaturea ln which they are
ohltged to work. Bakers suffcr from the |
"bakers* Itch" on the handa. Candy mak- j
era are liable to a slmllar allment. Bulld
ers, masons and stone cutters sometlmea
develop an eczernatous affectlon of o*
pofled parts of thelr bodles from the trtt
tatlng effects of lime, Portland cement
and stone dust. Laborers, englne drlvers
and mlnera develop calloBltlea of the hanos
which may result ln lnflamatlon of th"
suojacent tlasue. Workers among anl
mals aml the prodticts of anlmals contr.iot
diseases auch aa anthrax, which ls met
wlth ln the wool sortlnc. wool comblng
and splnning lndustrles. In horse hair and
brush factorlea, and arnong stevedorea,
wbarf laborers, carters. farmer*, ahep
herdr, butchers, meat lnapectorfl and cat
tle salesmen. the internal form of anthrax
belng known aa wool sortera' dlsease
There are also many occupatlons which
bring on maladles of the nerves. ?Wrlt
ers' palsy," "scrlvenera* spasm," to use
an Kngllah term. the mal telegraphique.
or telegraphlsts' spasm, nre some of
these. Even trap drummers and Punch
and Ju.ly ahowmen are liable to nervoua
troublca and hypertrophy of the muacles.
Dr. Charles L. Oana recently prepared
a cllnkal study of one hundred cases of
occupatlonal neuroBes obaerved at th*e
Cornell CHnlc for Nervoua Dlseaaea.
Some of the occupatlons repreaented
among those who cams for tieatraent
of Modern Oo
were pressers and Ironera, tailors. car
penters. clgarmakers. jewellcrs, barbers,
?eamatre!>sea. sewlng machtne operatora,
stone cutters, elevator boj's, paper box
makera. llthographers iatone pollahera),
inlnlature palntera, lathera, machinlats,
bookkeepers, BtattOgraphera, typewrlterfl,
sargaona, larynu'dogtste, dentists,
vlollnlsts. mllkere, planhsts, flute players.
auctloneors, pavers, housewlves. book
binders. modcll.-rs and drummers.
An effort ls betng made to Bccure laws
ln tho dtfi'erent states reciulring physl
10 report occupatlonal d.sc-ases, and
ln New York State three years ago, wlul
Hughes was Governor, a medlcal InapBO
tor of factorics was appotnU'd in the H.i
reau of Factory Inspecllon in order to ob
taln more sclentlflc lnformatlon regarJing
the aubject ln thla state. Thls waa the
flrst atate to make Buch an appolntment.
It ls expected before the year ?nds that
the subject wlll be brought to the attcn
tlon of at leaat 40.000 American phyal
European countrles in whlch there are
slcknesa insurance lawa are ahead of the
L'nited States ln the treatment of the
problem of occupatlonal dlaeaees, the tax
whlch clvllUatlon lays upon mankind. but
an effort is now belng made to remove
Contiaued from flrat pa?e.
thelr baying growing deeper aa the scent
grew atronger. Flnally they reached an
Itallan ahaek. entered it and aprang at
the Uallana whom they found there. The
men dcnled all knowledge of the rob?
bery. but a Uttle aearching brought to
light the ailver vessels hldden ln an out
house. Thls caae was aolved ln thlrty
mlnutes. though the acent was fourteen
hours old when the doga found lt.
The blg dog fc.?ob, for whom Chlcf Ker
kam has been offered $2,000, had an an
noylng experlence wlth the thlevea who
entered tho home of Dr. Vaughan, at
Garden Clty. on February 5 of this year.
The dog reached the placo by traln at
9:10 a. m. and took the acent from the
cork of a whlskey bottle whlch the
thleves had opened. The trail led to an?
other room, where an empty c'.gar box
proved that they were not averse to en
Joylng themaelves as they worked.
In the maln hall one of them had taken
away a palr of rubbers, and theuce the
trail led away across the tlelda to tha
waterworks and golf linka Then. -trangr
ly enough. It returned to l>r. Vaughan 1
coach house. out through the back" yard
of a neighborlng residence and a. rose to
the trolley llne. Ttiere It ended. and the
blg deg llfted his head to howl his dla
Ho made up for lt just a month later,
bowevOr, when the beautlful country
place of Qeorge A. Crocker, at rxxtuat
Valley, was gntered, Tho rohaery was
o'clock in the mornlng,
but it was aftarneoa bafora tbe daga
Bob aad Jlm arrlved, in the 3:lt>, and be
gan to snlff about for the gceat
Tiiey found it on a chis.d which the
burglars ..ad used to ;i' Q#ea a door,
and they followed lt back and forth
through the entire flr?t floor of the
house. Finally lt led out on the lawn
aml :i!ong a private road through the
.state to the publlc hlghway. Never
hesdtatlng, the dogs followed lt to the
home of a young man named Conaoly,
and there the caae waa turned over to
the county authoritiea. Thoy had had
this man under ausplclon for rome time.
but aa they "had nothing on him" they
were unable to arreat him. Connoly was
taken Into custody. and not on'.y this
crime but other crlmes were proved
But aa the dogs grew more active and
auccesaful the thleves became loss bo.
They were used to doallng with the
pollce, but when it came to a hundred
pounds of purauaut equlpped with un
f.il'.tng noee and tlreless logs and with
flcrce Jaws ready to Bnap together at the
end of a ohaso the matter was a dlffer
ent one. The thleves have moved on and
left the fleld largely to the dogs
And their fame has sprcad. Si.perln
tendent Kerkam haa been offercd 12.000
for Bob and 13.000 for Nellle. the orlglnal
pair. but ho wlll not sell his friends. He
Is qultc convlnced that the great tawny
dogs. w hose coata grow darker as they
arow older, are as beautlful as they are
intelllgent. Ar.d one haa only to look at
the deeply wrlnkled facea. the keen ayes
and thelr heavy Jawa to knew that tbese
are ariatocrats among dogs.
Even thelr manners are arlstocratlc, for
they regard strangers wlth a cool dlg
nlty by no meana reassuiing. On? would
no more aay "Good doggle" to Bob than
to a prlme mlnlster. They are fond of
thelr trainers. recognlalng them as work
Ing partners, but the bloodhound, though
not dangerouB when off the acent, la dla
tlnctly dlgnlfled. He ls all bualnesa. and
his calllng ls an unfrlendiy one.