122 



THE WORLD'S ADVANCE for JULY 



HELP WANTED 



APPARATUS EXCHANGE 



LADY OR GENTLEMAN, fair educa- 

 tion, to travel for old established firm; 

 no canvassing; salary $936 per year, pay- 

 able weekly, pursuant to contract; ex- 

 penses advanced. G. M. Nichols, Pepper 

 Building, Philadelphia, Pa. 



MEN to reflnish lighting fixtures, brass 

 beds, etc. All or spare time. No capital 

 or canvassing. Experience unnecessary. 

 Write for particulars. Gunmetal Co., Dept. 

 F., Decatur. 111. _____ 



WRITE Motion Picture Plays: $50 each. 

 Correspondence course unnecessary. De- 

 tails free. Atlas Publishing Co., 3065, Cin- 

 clnnati, Ohio. 



ANY intelligent person may earn steady 

 income corresponding for newspapers. Ex- 

 perience unnecessary. Address Press Cor- 

 respondence Bureau, Washington, D. C. 



GOVERNMENT Civil Service Positions 

 pay Big Money. Examinations everywhere 

 oon. Get prepared by former Government 

 Examiner. Booklet free. Write today. 

 Paterson Civil Service School, Box 3019. 

 Rochester. N. Y. 



GET CASH FOR NAMES, INFORMA- 

 TION IDEAS, FORMULAS Turn what 

 you see, hear and know into money. In- 

 structive booklet for stamp. INFORMA- 

 TION SYSTEM. 411, Marietta, Ohio. 



USE YOUR SPARE TIME to build up 

 a mail order business of your own; we help 

 you start for a share in profits; 27 oppor- 

 tunities; particulars free. Dept. W, Op- 

 portunitios Exchange. Buffalo, N. Y. 



THOUSANDS JOBS OPEN TO MEN, 

 WOMEN $75 month, vacations, short 

 hours, steady work; common education 

 sufficient; write immediately for list U. S. 

 government positions now obtainable. 

 Franklin Institute, Dept. W50, Rochester, 

 N. Y. 



APPARATUS EXCHANGE DEPARTMENT 



Advertisements appearing under this 

 heading will be inserted at the rate 

 of 2 l / 2 cents per word. This depart- 

 ment is for the use of subscribers of 

 record only, to enable them to ex- 

 change technical articles for which 

 they have no further need, for other 

 articles or apparatus which they pre- 

 fer. Remittances must accompany 

 copy no advertisements will be pub- 

 lished free of charge. 



The right is reserved to rewrite or 

 reject any advertisements which will 

 not be for the best interests of our 

 readers. 



Advertisements of articles intended 

 for sale cannot be accepted, as a reg- 

 ular classified department is conducted 

 for advertising of this character at 

 10 cents per word. 



All advertisements for this depart- 

 ment should be addressed to 'Ap- 

 paratus Exchange Department," THE 

 WORLD'S ADVANCE, 239 Fourth Ave- 

 nue, New York. 



HAVE general stamp collections; value 

 about $20 each ; will exchange for type- 

 writer, camera, magic lantern, or bicycle; 

 also have some books and magazines that 

 I will exchange for other books and mag- 

 azines. Edmund Beck, Whittier. N. C. 



WANTED A complete headset of stand- 

 ard make in exchange for receiving set 

 that receives up to 1,000 miles. Make 

 me an offer. Clarence D. Miner, 412 

 Cedar St., Niles, Ohio. 



WANTED Several good eight-day clock 

 works, A. C. wattmeters and fan motors. 

 Address J. Nordstrom. Gallitzin. Pa. 



WANT Smith motor wheel; have com- 

 plete receiving set, including Blitzen vari- 

 able condenser, 'phones, commercial loose 

 coupler, etc. Edward French, Peekskill, 

 N. Y. 



WHAT do you offer me for % kilowatt 

 transformer and condenser? Also have 

 oscillation transformer and series condenser. 

 Arthur Haake, Closter. N. J. 



WANTED Lathe set, electric fan, xylo- 

 phone, orchestra bells; all copies Electrician 

 & Mechanic before 1908; also January, 

 1908; April, 1909; August, 1912; have ac- 

 cordeon, books, ocarina, electric articles; 

 $5 hypnotism course. Emil Hoerz, 241 

 West Hickory St., Kankakee, 111. 



FOR EXCHANGE Two single 3,600 ohm 

 head phones, two kodaks, one- inch coil, 

 five condensers, audion, four detectors, 

 brand new motor generator, 6 volts, 6 

 ampere, oscillation transformer, $10.00 key 

 and a lot of other experimental goods; 

 all the above is in excellent condition. 

 What have you? All correspondence an- 

 swered. Don I. Shepherd, St. John, Kan. 



FOR EXCHANGE Typewriter, want mo- 

 torcycle. J. Bufka, R2, Denmark, Wis. 



WILL EXCHANGE Rotary condenser, 

 pair of 2,000 ohm receivers, for good cam- 

 era or offers. H. V. Butterworth, 15 

 Kosciusko St., Brooklyn, N. Y. 



WANTED A u d i o n detector, flexible 

 transformer any size, line protector for 

 110 volt circuit, large spark coil and other 

 wireless goods in exchange for large loose 

 coupler; wound for 3,000 meters; one- 

 half KW. sending transformer and a new 

 $25.00 mandolin. H. A. Thorndike. Fitch- 

 burg, Mass. 



HAVE for exchange lantern slides, neg- 

 atives, films. Tribune tandem, Seneca 

 camera, flint lock pistol, English make; 

 want large lantern slides or views of his- 

 torical places, Indian relics, curios and 

 electric fan. Brodstone, Superior, Neb. 



FOR EXCHANGE One-half KW. trans- 

 former coils, three-slide tuner and loader 

 style "C" one, and two KW. gaps; 30-30 

 Stevens repeater rifle (new), detectors, elec- 

 trolytic interrupters, old violin, marine 

 engine, Detroit make; 2% H.P., two cycle, 

 20-22 diamond auto engine, complete to 

 run. Want rotary converter 110 D.C. to 

 110 Volt, 60 cycle A.C. ; rotary spark gap 

 of standard make or transformer of stand- 

 ard make. G. L. LaPlant, St. Anthony, 

 Iowa. 



HAVE for exchange the following arti- 

 cles, value $56.50: One loose coupler, $9.00; 

 fixed condenser, $3.00; crystaloi detector, 

 value $3.00; variable condenser, $5.00; de- 

 tector, $3.00; loading coil, rewound, $5.00; 

 two S. S. tuning coils, $5.00 each; 2,000 

 ohm phones, complete, $10.00; buzzer test 

 with key, $2.50; 1-lb. tested galena, $1.00; 

 one D. P. D. T. switch, $2.50, and one 

 D. P. D. T. switch, $1.50. Will exchange 

 for motorcycle or what have you? All the 

 above articles are in first- class condition. 

 G. O. Fackrell, agent Sierra Railway, 

 Cooperstown, Cal. 



HAVE Blitzen receiving set. 2,000 ohm 

 phones ; many other wireless instruments ; 

 X-ray outfit, two-inch spark coil; write for 

 list. What have you in exchange? E. F. 

 Rybolt, Dayton, Ohio. 



WILL EXCHANGE high-grade 2^Tndh 

 wireless spark coil, eight-point adjustable 

 condenser, spark gap, brass key and helix 

 for Audion detector or what have you? 

 J. Miller, 33 Windsor Place, Brooklyn, 

 N. Y. 



HAVE De Forest audion with stand, 

 mounted on hardwood case, with rheostat, 

 switches, etc. Want good coaster brake 

 bicycle. Edward French, Peekskill, N. Y. 



FOR EXCHANGE An auto sparker or 

 dynamo ; cost, $28 ; weight, 23 Ibs. ; was 

 used on an automobile to develop current 

 for a spark coil. Will take wireless or 

 electrical things for it. Also have a 

 % KW. transformer, $5; fixed condensers, 

 gas engine coil, sensitive galvanometer, 

 electric bell, electric thriller, shocking coil 

 without vibrator, and "Fun with electricity 

 outfit" (St. John's) ; besides magazines, 

 etc. All things in good condition. Would 

 like especially such articles as 100 ampere 

 ground switch, Murdock 43 -plate rotary 

 variable condenser, "Electro" loading coil 

 and a good spark gap; act Quick. Donald 

 M. Terry, Scott, Ohio. 



FOR EXCHANGE Quantities of tested 

 galena; if you have wireless goods to ex- 

 change, write. George T. Hunter, 203 

 Miami St.. Urbana, Ohio. 



FOR EXCHANGE A complete wireless 

 receiving set, consisting of $12.00 loose 

 coupler, $10.00 phones, $3.00 variable con- 

 denser and $1.00 fixed condenser, mounted 

 on mahogany base, unpacked but not used. 

 Will sell separately or complete. Also send- 

 ing instruments and desk; make offer. Well. 

 Van Slyck, 836 Main St., Lake Geneva, 

 Wis. 



FOR EXCHANGE Wireless set costing 

 $150.00. What have you to offer? A. H. 

 Morris, 919 West Eighth St., Wilmington, 

 Del. . 



WILL give Fox typewriter, in good con- 

 dition, for six-inch spark coil, or what 

 have you? Eliot Sarasohn, 696 West End 

 Ave.. New York City. 



You Are 

 Reading 



This Ad. 



Because 



It Interests You 



Thousands and thou- 

 sands of live readers are 

 also reading these classi- 

 fied columns for live op- 

 portunities. Why not 

 send your order along 

 for our August issue, 

 going to press July 1st? 



That our classified ad- 

 vertising columns are 

 producing results is veri- 

 fied by the long time 

 orders given by our ad- 

 vertisers. If you have 

 a proposition that you 

 want to place before 



750,000 

 Readers 



98% of whom are men 

 and boys, here is your 

 chance. Remember, only 

 lOc a word, minimum 

 1 words. 



Address 

 Classified Advertising Department 



The World's Advance 

 Magazine 



239 Fourth Ave. 



New York City 



For our Mutual Advantage mention The World's Advance when writing to Advertisers. 



