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Show Wireless Telegraph H Plant Operated by Boys i I In Nowport, II. I., nro two wireless i telegraph plants owned nnd operated oper-ated by boys, which nro perhaps tbo most complete nmatour plantB In tho country. They belong to Lloyd Manuel, Man-uel, who has his plant at his bomo on Third street, nnd Henry lloonoy, whoso apparatus 1b situated ou Mt. Vernon street. Moth boys receive and send messages, mes-sages, but nro particularly busy In receiving re-ceiving tho many messages that aro sont to tho wireless station nt tho naval toricdo station At times tho operators at tbo torpedo station talk with tho boy operators at Nowport, i adjustable. The length of tbe wave ' H In rogulntcd with this apparatus by fl moving the chips In cither nn upward I M or downward direction After ascor- H tabling precisely the right position for M a certain station, It Is an easy matter H to keep this In mind, and no fnithei H trouble Is experienced. Though othei M stations than the one thuy are cnll- M lug may reecho the moshage. It la U heard most distinctly by tliu station M to which the apparatus Is adjusted M Tho greatest Improvement oxer tho H earlier Instrument Is In the wine )- M tector. Two pieces of carbon, with nx M ordinary needle placed across them M The Home Used In Wireless Experiments. j H and tbo navy men, both enlisted men and officers, nro much Interested In tho work of the amateurs. Last winter Charles Fielding, n messenger mes-senger boy employed by tho Postal telegraph company, constructed n wireless station and sent nnd received messages. So Interested did Commander Com-mander Albert (Heaves of thu torpedo station become lu the apparatus and work of tho messenger boy thnt be visited tho Improvised station at Fielding's home, with thu result that Flldlng wns enlisted lu tho navy, though two years under tho ago limit. This Inst act was waived, as thu navy was anxious to have tho services of tho young exptTt. Commander Olonvos mado a full report of Field-Ing's Field-Ing's apparatus to tho navy department. depart-ment. Fielding Is now an uloctrlclnn In tho navy, nnd is stationed at tho Brooklyn nnvy ynrd. Manuel nnd Hoouey spend practically prac-tically aJl.lhclr Bpnru Jlmo. ..working and experimenting with their outfits, and have' made several Improvements and additions to their first ralhor crudn apparatus. In thu part of tho apparatus which Is used for sending messages, a condenser con-denser nnd u tunning coll nro used. This Is n brass wire connected with tho nerlal and to tho Instrument Itself by menus of leads or chips, which aro was the way In which the nrst or. H tector was made. Now the boytj uto an electrolytic receiver. This con H slsts or a hair like platinum wire, H which Is partly contained lu a recep- H Inclo containing ncld, to which It la H fastened by means of u screw nil- H Jtistmeut. Another tunning coll In H used, similar to the one used lu tend- H Ing, but In this coll there are many- H morn turns of wire. A sliding con-' IH tact Is employed, and in this maimer H any part of the coll can be used H A receiver, attached to the head. H similar to the ones used by telephone H operators, Is used. The sliding con- H tact Is then moved up and down un- H tit thu apparatus rescinds. H The general aim of all experiment H ers In thu field of wireless telegraphy H at the present time Is to discover H selective system of transmitting mem H sages. This Is a system whereby It H will bo iKilblo tn transmit messagm H from ono .point tn another without IH oulslilu Billions being ahlo to Inter- T fore or "butt in." M This latter Is now tho greatest d H feet In wireless telegraphing, nn other H stations than the one intended get tho H message. Of course, these mny not H understand tho iiiobsiikii If It Is sent In H n code, but they nro able to bother tbo H sender and receiver to n greater or H less t |