' ! si. - Jot. L i . : .V' '4.V- - H's' .y .LV 11 - w- 'Ft ffef Hm'' te r i ' A ,"7! V ft ;.i Y ecforThat ill UP Dome the Httv JBoat 6k T - ' 'O IJ 1 DiewsTer o. ueaci v gfiiMiiiiniiiwlIATKVKK tiltins Gonnnny may ! 1.1. M 1 11 t If I.. A..illi 11IUKU1K i'1" 'iiu iil'xi war, 11 in 11 uui .hu' Is or over will le oiiimlilc of car ryliiR tlium out. It Is certain that tlio suliiiinrlne will play no part In lior hcliutnvs. Tliu Ktibinarlno Is ilead. The U l)oat peril has vanished forever, never to be resurrected. The collapse of submarine warfare during the closing months of the Kti- roiiean conlllct and tlw prediction that Its resumption may never be seriously feared again, was the result of the Invention in the United States of u wonderful listening device, or submarine detector, which came very close to driving the II1111 submersible from the ocean, mid would have done so, In the opinion of naval ex perts, had the war continued through another Mimmer. As soon as the United States entered the war the navy department formed a spcclnl board to develop ways and means for combating the U-boat peril, then growing to alarming proportions. This board consisted largely of olllci"s from the bureau of steam engineering, of which Rear Ad miral It. S. Ciillln Is chief, it called to Its assist ance in an advisory capacity many noted engineers and scientists from Industrial concerns, Including the (.eiierul lilectrie company, represented by Dr. V It. Whitney, director of that company's re sejirih laboratories. Commander C. S. .McDowell, U. .S. N., served as wcctit.o secretary of the board, while the other mlvNoiy members were Col. I H. .lewctt of the Westirn Klectrle company, and Prof. 11. A. Mllll l;iin of the University of Chicago. Development headquarters were established at New London. Conn. The t.cnernl Klectric com pany In conjunction with the Submarine Signal company of Hoston stinted an experimental Held Matlon at Nullum, Mass., and were later joined by experts from the Western Klectrle company. Out of the activities of these two groups of scientists there was developed the American listening device, an Instrument which proved to b able successfully to detect submarines while sub merged within range of anywhere between 3 and 12 miles. Kven with the signing of the peace treaty little can yet be known of the details of this device. It Is, however, an Instrument using the principle of sound-wave transmission through water In a new and startling way and It depends for Its direction-getting qualities on the peculiar and llttle undei stood faculty of the human ear to detect the direction of sound by the shifting of sound from i one ear to the other as the Instrument was re volved. As soon as the device was considered practical the General Electric company undertook Its man ufacture mi 11 large scale In Lynn, Mass., develop ing three kinds of listeners: One which was hung overboard from tho deck of submarine chasers, an other which could be trailed oft the stern and a third which protruded through the hull of the vessel. American destroyers, chasers and subma rines were ut once equipped with the Instrument. When the submarine detector had been turned out In sulllclent quantity, the navy department be lieved that the allies should get the benefit of the invention nt once. A special service party, In charge of dipt. It. II. Leigh of the bureau of stenm engineering, wus formed to tnke samples of the apparatus abroad Tftd .test It under actual condi tions beforo tho British admiralty. The Instru ment wqs likewise demonstrated to the French and Italian navies. The party consisted, besides Captain Leigh, of Lieutenant Carter, U. S. N En sign Welch, U. S. N. It. I, six enlisted men, C. E. Eveleth, C. I Scott, and T. P. Collins of the Gen eral Electric company, representing tho Nnhnnt group, and V. L. Nelson of the Western Electric company, who was connected with wireless devel opment. They nailed November 122. 1017, nnd Joined tho British grand fleet at Scapu Flow In the Orkney Islands during tho first week of the following month. Tho allmlmlty and the supremo war 'council shortly afterward udoptcd the American device and from that time on mibmurlne patrol work was revolutionized. Defensive tactics which had been employed since 1014 wero now no longer the sole reliance. Tho wur wna cnrrled Into the enemy's territory. Flnhtlng ships, Instead of putrolllng the steam. Bblp lanes looking for a Btray "sub" to poke Its & 4?x Listening If WmBLK Jl 1 J'" ' r$ ' t 'Base Path of Coser f - - tttckb.j&C37t t. A rtJj$L. ?4Lsz VVV I yjt"'j &?-? '' -'J Wmk t I Ar" PS 1 W Iff w RED OLOUD, E222EzrSs fat N.r-s,sI 3232Sisi!sS$s2P J) rPwri'C3BPt , "cz. -"" Lim-TwmFfmMW,Krrnfwirwtivt ttwxvm n N:.---: Cvr ," - .- Vy;;" ScgSo . drn W'ip .;v.. iSi rryjiy7 rsfzjrsr&L SSSSSP '5Xcscv. " LjrsMy70Pcsorv?ov0-MmA? periscope above the waves-, were augmented by submarine chasers equipped with listening devices, and bunted the submarine in Its underwater lair. Up to this time the British had been frankly disappointed in results. It had been a rare thing for n submarine chaer to actually see a subma rine. Days would go by without sight of one. Yet sinkings continued to multiply, tonnage de creased alarmingly and the rates of destruction and construction constantly approached the danger point. It was apparent that If an Improvement In this situation could not be effected the allies faced privation, If not actual starvation, and any material help from America either In the form of men or supplies would be Impossible. The success of the device Is well Illustrated by the chnrt shown herewith which gives u vivid picture of the chase of an enemy U-boat In the English channel and demonstrated the ability of the listeners to keep hot on the trail of the sub; marine, doubling and crossing In an effort to es cape. This dramatic Incident one of many Is vividly described In the following report of the engage ment In question: "Af l:Uo o'clock unit No. 0 'fixed' (located by trlnngulntlon) a submarine directly ahead at 11 dis tance of 1(H) yards; immediately carried out three boat barrage attack, each boat letting go three stern charges and 'Y' gun. Pattern lnld sym metrically, thoroughly covering any posslblo maneuver of the submnrlne. Stopped and listened. No healing for about '-'0 minutes. Then got con tact. Distinct sound of submnrlne making nolso as If shafts were bntlly bent. Also giving out squeaking sound. Submarine sounded as If hnvlng great dllllculty In keeping propeller going. She stopped frequently. We followed. . . . Heard submarine hammering, squeaking, straining, run ning Intermittently, apparently with grent dllll culty and for short periods. "The second depth charge of this attack threw Into the air a oO-foot to CO-foot cylindrical black object about the size of a depth charge. . . , Another depth charge attack carried out. Sub marine had gradually been making shorter turns for some time. . . . From this point on believe submarine bottomed and was never able to movo except to start and scrape along the bottom n short distance. Noises Indicated this." Word was then sent to Penzance for additional deptli charges and u radio dispatched to tho baso for n destroyer post haste. "Subsequent eventB," continues tho report, "bhow 'that submarine never moved from this spot. Noises indicated repair. Occasional unsuccessful attempts to start motor . . . sounds rapidly bo coming lesu frequent." When morning cnino tho submarine chasers nnd tho destroyer which hnd been sent to their assist ance gathered near tho spot where the crippled sub marine was resting at the bottom. Souuds of NEBRASKA, CHIEF jLjr&yjtfc foz feverish activity within tho mibmurlne's hull wero distinctly heard. Suddenly there was a dead silence. Then -5 revolver shots rang out (hrre first, followvJ by ill. "Taking Into consideration nil circumstances and events," continues the account, "conclude sub marine damaged externally, unable to start motor after repeated attempts. Unable to rise to surface nnd Is on bottom In the vicinity. Reports of listen ers substantiate this conclusion." As a matter of fact, the Itrltish naval Intelli gence department lenmed Inter that tho crew of a Orinnn submarine had been lost In the Kugllsh channel about this very time. The report, ns they obtained It, Indicated that the Hun boat had been trappvd on the bottom and ko seriously damaged hhe was unable to rise. C. S. Scott, engineer of the General Weetrlc company and member of I he special party sent abroad, contributes this Incident which happened In the Adriatic sea: "We had !t chasers based In a little hay on the Island of Corfu and the barrage of boats extended across the Straits of Otranto, a distance of about 10 miles. The chasers wore operated In units of three, which op pntrol kept about one mile apart. A distance of five miles wiih kept between units. Conditions In the Adrlntlc were Ideal for hunting submarines. Tho water was very deep, ranging from 100 to 600 futhonis, which meant thnt tho submarines when hard pressed could not seek shallow water as was their custom In tho Kngllsh chnnnel and tho North sea. Duo to less shipping trufllc In theso waters there wus practically no pound Interference, which mnde for very good listening. "Many successful attacks wero made In theso wnters, one in particular being qlto exciting. "One of the ships In n unit beard whnt sounded like 11 submarine. In u few minutes till three listen ers had picked him up nnd the bearing of his course was being plotted The mlddlo chaser, the llngshlp, was getting readings showing thnt the submarine was in a direct line nstern and steam ing toward her. "Tho sound was very loud, ns If the sub must bo very close. Suddenly the wnter begun to slnp the bottom of the boat, bo thot everyone could feel It ; and the next moment tho observer reported that his bearing on the mibmurlno had changed from 180 degrees, which wus dead nstern, to three de grees, which was on our bows. The submerged submarine hnd passed directly under tho center bont. All three boats wero Immediately got under way nnd tho attack was delivered. After all tho deptli charges bad been dropped, tho ships were stopped and observations again taken. A pro peller was heard to start up and run for nbout U0 seconds; and then n crunching noise was heard. It was (pilto evident that tho sub, having been put out of control, snnk to the bottom nnd had col lapsed due to the tremendous pressure nt these depths. Wo went back to tho spot next morning nnd found an oil slick two miles long by 800 ynrdi wldo on the surfneo of tho water." Tho development of the submarine detector was the result of the forcslghted vision of tho nnvy department nnd the generous co-operation extend ed by prlvato manufacturers who had placed their entire organizations nt the disposal of the gov. eminent for tho period of the war. Largo electrical manufacturers with exceptional fucllltles for research and experimental work were utile to render Invaluable nsshitunce In crack ing tho Mibinnrlno "nut." 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Yeast I see the pro rntn share of (he money In circulation In this coun try Is $!i4.0(J nearly $5 more thaa It was 11 year ago. Crlmsonbeak Well, I caa accennt for that extra live circulating, I think. "Yes?" "I hnd SH a year age." Ready Explainer. "Tommy, your bend Is wet. You've been In swimming ngnlnst my orders." "No, pa ; I was Just stnndln' on the bank watcbln' the other boys when that little Tompkins kid did a 'belly buster' niT splashed me." 'Then, why vv-nsn't your hat wet7 "I had it in my hand, pa, fnunin' myself." "IJuiph ! I guess I'll hnve to mako a lawyer out of you, son." Birming ham Age-IIernld. Honors Even. "My boy was 11 first lieutenant In the army," remarked Mrs. Gndspur, with a slight air of superiority. "Did he get to France?" asked Mra Clipping, while sparring for time. "Kr no." "Of course our son, Henry, was only n private, but he spent 18 months In France. Gold service stripes match the olive-green shade of army uni forms much better than silver stripes. Don't you really think so?" Blrmiag ham Age-IIcmld. nnie 3 mmB