Evening Star Newspaper, December 24, 1924, Page 10

THE EVENING STAR, WASHINGTON, D. ¢, WEDNESDAY, DEUEMBER- 24, 1924, HIGH LIGHTS OF HISTORY : Trials of the Settlers. 10 MLLINS T HER CARDLS ON RADID Stations in All Parts of Nation ' to Carry Story of Christ’s Coming. By J. CARROLL MANSFIELD RADIO’S BEST OFFERINGS TONIGHT. Carol singing by the Civic Chorus from Independence Square, WOO, Philadelphia, 6 to 7:30 o'clock. Christmas carols by meni- bers of the St. Cecelia Society kron, WJAX, Cleveland, 7 Concert by the Orpheus Club Ensemble, WBZ, Springficld, :30 to 8130 o'clock. Sacred Christmas cantata, “The Christ Child,” by choir of the Church of the Epiphany, WCAP, Washington, 11 o'clock. { Christmas program from the { | Mifflin Avenue Methodist Epis- stations throughout cluding Washington's I hurl into the ether tonight , tha glorfous tidings of Christ| and His mission, and peace and good | will to tha world. Millions will hear the angals’ squ. R Sinas fearols and reading$ of Charl R 'ROM THE STARY THE SETTLEMENT OF : e Tidkerns T burgh, 11 to 1 o'clack. JAMESTOWN DID NOT THRIVE. THE SUMMER OF 1607 WAS A DISASTROUS " wi Midnight B e THE HIGHBORN GENTLEMEN AMONG THE: | | ONE FOR THE SETTLERS. acred Heart Church, \WCAP, [COLONISTS THOUGHT OTHER PURSUIYS OF THE EXTREME HEAT, THE UNHBALTHY Was 12 o'clock. MORE IMPORTANCE THAN THE PLANTING OF | | LOCATION OF THE TOWN AND IMPURE CORN AND THE TOWN COUNCIL WAS UNABLE| | DRINKING WATER. SROUGHT ON AN EPI- YO FORCE THEM 7o DO MANUAL LABOR. . DEMIC OF FEVER THAT KILLED MANY. Copyright, 1925 by The McClure Newspaper Syndicete. 1IN THEIR DISTRESS THE HONGRY COLONISTS ;':PEA f::g{rm A%fi;dm;flts’ N;:G B_!rem ILOOKED Yo CAPTAIN JOMN SMITH FOR HELP, HEIR OF v ©° THE OLD SOLDIER WAS EQUA) TO THE DEVOTE THEIR TIME TO RAISING CROPS. EMERGENCY AND GolNeE$o THE ~DIANS THE FOOD GAVE OUT AND MANYDIED OF | seciopp SUPRLIES By BARTER( = FAMINE — BY THIS TIME LESS THAN HALF | |TRINKETS FOR CORN AND VENISON SPTHESETIEQS WERELERT TOMORROW -TOHN SMITH ans POCAHONTAS . IDEA FOR SIGNALING] | reree muxores or maio ac nay MARS IS ADVANCED copal Church, KDKA, Pitts- ngton, ss from Old S Midnight ma : KSD; &St Louis Cathedral, Theéf principal feature Loui o'clock. lengthy program include the sacred | TU SINGfiFfflR RADIU WEDNESDAY, DECEMBER 24, 1924. Church of Epiphan midnight mass | | The Programs of the Following Distant Stations Are from the Sacred Heart Church, a re- cital of Christ arols on the Mc- Noted Authority on Radio. lchn McCormack and Bori to: Scheduled for Eastern Standard Time ? e [Vient Principles of Ttadio Writer Believes Some Com-| XKim memorial chimes at the Chure of the I hany and a special Part 11l—Multitube Filament Circults, | ‘ Be Broadcast on Night of = il aEmte i January 1 by WCAP. 2 L P 7l R Christy !,_nlri Eclipse, Could Be Basis. Long Enge Radio Entertainment Tenco s A1l Rizhts Reserved. Reproduction Prolibited. Dianny G is Cireuits. m Dexons *Cari 1il re The two-type of multitube { eircuits given yesterday | sentative tvpes of multitube circuits in which either separate rheostats are used to control each tube In the circuit or a single rheostat iz used AR Hadioan, nivg Arestars fo: resuits. Reuaived the 5 oiite. braes tube may the | switeh Another method opening the filame tmas program sl entertainers . tion, ‘humor, verse and topic :10—Special’ Christmas recital: instrumental wolos 30—Musical progrum by Hotsl Belmoat Orchest Musical program by Star's Radic 77 Artist recital; °* 5— Home-makers” of omatically to tubes | December —~Two stars capitu- lated yesterday to the demands of mil- lions of radio fans. New Year night artists of the Victor Talking Machine am | Company will give the first of a| include | gerie: -weekly concerts, it s | { | { BY LIEUT. COMDR. FITZHUGH GREEN. It is natural to suppose that the Martite i, like us, intensely curlous about his neighboring planet. Viston tells him much; far more, no doubt, than we know of him. For his tele- scopes must have become, highly per- fected. e may even be keeping a first-hand record of our wars, our tornadoes, our spreading cit our dwindled forests Let us suppose that he invc 214 of his physicists to tell hi is the best way to reach us Light or eound waves, re; would require too nwuch energy fo| cover the vast intervening space. But| & form of rays that travel ense | rnoon d -= from New York. The | 3 o'clock and fed progr: These FURNITURE RENTING ron Household Office Receptions Parties Conventions Drives Weddings 000 Folding Chairs in Stock H. BAUM & SON :00—Orchestra program: news: marke Yocal program by Marie Dantze Magasine hour: Heauty talk by Mme. : 4 johnny De Droit and his Balconades Orchestra an recital ... > s 00 Cheer' program: musi ith talk by Dr. Landie . WFBH WOCO Mini WMAQ Chicago LWHN_New York WHAM Rochester WLW Clacinnat! WFBH New York WGY Hehenectady WMAQ Chicago KHJ Los Angeles WIZ New York BH New York W00 Philadelphia announced yesterday by officlals of that and of the Amerlean Tele- to! phone wnd Tele | quently pany. n vho has fre- refused to sing for the radlo, ! in Bori are scheduled to < euch on the initiul 211 the Victor | the ensuing| 6:00—Carol singh W00 Phitadelp 1s t t Produce T chenectay Children's hour: atorles and musical program AC Hoston Chuldren’s Uncle_tiecbee WGBS Now York Pr. . litan Kehool 1 program by Hi Moulton and his-orchestra. ni and home reports: news bulletins .......... Dories Sheldon, contraito. n and trumpets [ room of the Meyer Davis the what signal. to coptrel all the tubes in the ci | cuit i In the circults using a detector and one or two stages of audio plification and in other one stages of | oy & it wi gram ot the| s mesxage by wt Toainh frankly said his con- | introd likely or more Radio kdi At 10:30 o'clock Leard & s n in oft. T e WHJZ whether the: rect. Pleas. day mornix Wilmington, Del, sounded WGBD HALPF v stations WHAV and the give WOAT. form; 1t Have no fons with CBD, Zior Radio Editor: Y. Woodward, in cember asks the adian National The Star, De-| call letters of Railways sta- heard wave length | dial The the night station came 1 heard on, if vour the lowe EAD. New Brunswick, Canada, on the .air eral months ago and the records show its ve length 435 mete Radio | . however, report picking up this station on a 313-meter wave ba our column every night. 1| would like for you to tell me what station w transmitting code ver: Joud about 3 o'clock Saturda ernoon 1 heard code or = 5 or 10 minutes. Could yo also tell me if NAA broadcasts weather ‘reports in co or in radt telephony?2—HARRY PARKER. NAA tran eather reports in eonde and radio telephony. All radio telephony is t out on a 435-meter | band. meter band is used h for the average celving set to pick up. The radio editor camnot identify the sta- tion transmitting code Sunday after- noon. the Radio Editor 1 am an ardent fan of the great radio sport and noticed an article in Your column Saturday—a quer: garding a station of the Canadian Na- tional Raflways heard_by F. Wood- ward, broadcasting on 309 meters. I wish to advise that 1 have heard the same station which is CNRA at Monc- ton, New Brunswick, which transmits on 313 meters, T have a book contalning radio pro- grams for December, which lists the following stations of the Canadlan National Railways: CNRA, Moncton, New Brunswick, 313 meters: CNRS, Saskatoon, Saskatchewan, 400 meters: CNRR. Regina. Saskatchewan, 420 meters; CNRO, Ottawa, Ontarlo, 435 meters; CNRM, Montreal, Quebec, 425 meters; CNRC, Calgary, Alberta, 440 meters; CNRT, Torénto. Ontarlo, 400 meters; CNRW, Winnipeg, Manitoba, 450 meters; CNRE, Edmonton. Alberta, 450 meters. Hope th: will help | straighten out the question in the good column of Information.—FRANK UMBALU. Radio Editor: Will you or some of the fans please tall me what station in Denver, Colo., signed off at 11:15 p.m. Friday, De- cember 197 T heard the announcer in Denver quite plainly, but failed to catch the call letters. I have a one- tube set with which I have gotten 47 out-of-town stations, including Ot- tawa, Canada: Hasting, Neb, and other quite distant stations—P. D. MOTT, Cherrydale, Va. KOA. the new station of the Gen- eral Electric Co., in Denver is the one you probably heard. Radio Editor: I have a four-tube set and heard svation WJIJD at 10:45 o'clock Satur- day night. Can you tell me where it is located and its distance from Wash- ington? Also could you tell me where WREO is ls=ated and how far it Is from Washington? — WALTER J. SLICER. WJIID is in Moosehart, Ill. It is approximately €00 miles from Wash- ington, WREO is in Lansing, Mich. Its air line distance from Washing- ton is 476 Miles. _—————— Hint on Cause of “Whistling.” Whistling is a common fault with | iube sets and is sometimes caused by the lead-in belng too close to metal and pot properly insulated. A wire connecting the frame of theé com- denser to grewsd lead will ground | chimes | from the palm room of the New Wil- {in popular songs, presenting j chimes, | ®anist, its radical change eously from sta-| New York; WCAP,| WJAR, Providence; WDBY, Worcester: ;- WFS, ttsburgh, Local Radio Entertainment Wednesday, Dec. 24, 1924. Philadesphia, | ! | NAA—Naval Rudio Station, Radio, Va. | (435 Meters). ther Bureau reports. | T J (‘ommun!on; talk 'or Employ- ment in the United States Civil S e i p.m.—Weather Burcau reports. { WRC—Radio Corporation of Americu’ (469 Meters). Christm: Trinity jointly ervice Church, | with stations 3 pm from ork, broadea WJZ and WGY. 4 p.m.—"Health and Beauty,” Elizabeth Arden, 110 p.m.—Piano rec or Glynn. 1 4:20 p.m.——"The Sudan; a Vestibule | Africa’s Negro Belt,” prepared by the ational Geographic Soclety. H 4:30 p.m.—Tea music by the New | Willard Meyer Davis Trio broadcast | by | | to lard 6 p.m. Albion. Hotel. Children's Hour, by Pegey WCAP—Chesapenke and Potomac Telephone Company (469 Meters.) 0 to p.m.—Mohawk Quarte: Earl Gordon, first tenor; Frank A. Goebel second tenor; Raymond Towers, bar!. tone, and Clarence Johnson, bass. 7:55 to §:15 p.m.—FPopular piano selections by Gertrude Iireiselman. 8:15 to 8:30 p.m.—A talk by Henry R. Rathbone on “A Christmas Mes- sage.” 5:30 to §:45 p.m.—Readings from Dickens’ “Christmas Carol,” presented by Elizabeth Fleld, dramatic reader. 8:45 to 10:30 p.m.—Special Christ- mas program, by “Bob” Lawrence and his musical friends. 10:30 to 11 p.m.—Recital of Christ- mas carols on the McKim memorial by Thomas G. Spence, or- direct from the Church of the Epiphan ," sung by the full choir of the Church of the Epiphany, under the direction of Adolph To- rovsky, choirmaster. N 12 p.m.—Midnight mass, from the Sacred Heart Church. WEIGHT OF CRYSTALS IS DEFINITELY SHOWN Standards Bureau Finds Gravita- tion and Inertia Only Properties of Described Forms. A final report has now been issued by the Bureau of Standards on the experiments of Dr. Paul R. Heyl on the welght of large crystals, experi- ments that were recently held. The concluston is unchanged. The crystals of topaz and other minerals weighed the same when they were upright as they did when laid on their sides. This means that gravita- tion ‘and inertia are the only known properties of crystals which do not vary in different directions according to the crystal form. These being also the two properties of substances which the Einstein theory declares to be of similar cause, the Washington experiments lend additional support to Elnstein’s viewpoint. s TEST OF RAIL RADIO. Amateurs Able to Ai{d When Train System Fails. Some time ago the Pennsylvania Railroad and the Amerfcan Radlio Relay League undertook a series of tests to discover just how much as- sistance might be rendered to the railroad by amateur radio operator: in case the railroad's system of com- munication was temporarily put out of commission by storms or some other reason. . The tests have been satisfactery to everybody concerned. The raflroad company has announced that it will organize a formal system of co-oper- ation with the amateurs along its lines. —_— Variometer shafts should be -of brass or copper, not iren or stoel, tings br University of Ceuu eatlnghiouse tiregorio Scalao's O ‘Alamac Orchastra v Clarence Williams; Fva Tagio dance music from Checker Inn Merry Chri: y BUI 7708 PM readings ers and’ Eddls ; address: ny It Big Hrothe) Chtistmas sery Susical program by & it News Orchestra; hard Levitow's Hotel Commodore Oreh Chicago Theater organ recital - Final market reporta; Musical program by Eastm: Dream Daddy with boys a as carols by St . live stock and lnus getting ready reports ... . Summary of markets by Hi Musteal 5 Organ: 1 carol Rtogies for Bports Violin ‘and organ from al program br R or Lits trip by Georgens Fauikmer thedral chimes e Concert rtgby Orpheus Club Ensemble; rting news and weather forecast. lee Club concert . Concert by Abergh's ndmaa’s visit; ol service from Cathedral Church of St. Paci. Midweek church services, Calvary Baptist Church. Hpecial Hunter Cullege 'concert “hristmas Carol’ Raiguel Y. U. Air Coliege Talx on “Coliege Clothes” by Concert program from Plain Dealer studio Musical program; Christmas stories; talks Dicner concert from Congress Hotel Evenlng Herald news bulleting . = Geme Ingraham'’s Great Notch Inn Orcl Children's program: story by Aunt Nell . Goncert by Municipal Band of San Jusa . 8§:15—*'The - Conversation Corner’; orchestra . Cholr from WEAF, New York . Carols by Boys' Chotr of St. Jame: 8:80—Concert by Cuban Army Band ““Topics of the Day' " Goncert by K. & I Termin cial Christmas i = Orere by Bam Toth and other ariists | Concert by KDKA Little Symphony Trio . Children’s hour by Big Brother .. K Chiristmas carols by choir of First Unitarian Soclety WBZ Ehaimar S Waietine 8:45—Grace Church Choir of O o TO 10 9:00—Concert by Waldorf-Astoria Orchestra . Special artist program; stage review ... Special children's program; B e L T netrerseaal IR W 6 Art Hickmun's Concert Dance concert by Stelnberg Orche: Bpecial Christmas program; carol: Vocal and {nstrumental progra: organ . 9:15—WOO Orchests “A Christmas Message. 9:30—J; e Baptist Church. Chotr. Special Christmas eve e e Topics of the day; weather; markets; news 9:45—Nick Harrin, detective atories; orchestra - Choir of St. Bartholomew's urch : ram, vocal ‘and instrumestal OO0 et ardims Dance Orchestra mas address by Ed: o Slebration 10:10—Atda Brass Quarte :15—G ureh Cholr of Orange 5 Markets, sveather, news and poilce repot: Bedtime story by’ Aunt Vivien 20—Christmas program by Nobls Chu 25 _Choir of 8t. Bartholomew's Oburch 30—Dance music by Jim Riley's Orchestra lly Wynne's Gregwich Village Ino olice Teports; weather . forecast — 1L Christma: :45—Midnight revae . Robert Yep Hawx i Concert by the Phonograph Trio 11 2. 70 18 MIDIIORT.' 11:00—Alda Brase Quartet . Frogram from Evenin iray anc Special Christmas carol service from. Bt. Episcopal Cathedral S0 35 riaity Chotes voeal suish Carols by Trinity 3 < Ieo Relsman and his Hotel Brunswick O Jack Chapman's Dance Orchestra . Organ_ recital Christmas program. Orchestra_progra: U1:16—Feryy and Rasell, two-m Robert Yap Hawalian Ensemble .... 11:80—Lyric vartet- ‘recital; Samene o Organ recital by Stephen > n:u—ch-:fi-_: l.‘..."’..,fi‘ln.. ‘program e, ‘Sterdam ‘Theater - :00—P: from Miffin Avenve M. E. Church O Bradbotds Versatiie. Band Concert hour o l’hlll‘:h from E::mlnn studio £t Reof ertainers . 12:45—Nightbawk frolic; Plantation . Biayers A 1 TO Orchestre from WOY, Cecelln Socletr of Akron. .. roduce market reports. police reporta: Hotel Adelphla Orehestra . Ensemble; instrumental solos 8709 PN stories by Val McLaughlin . readis, English comedian, from New Am- Wil Dhiladelphiz WGN Chicago wEs At WHZ Npringheld KDKA Pitesburgh IWFBH New Yord Newark CWTAM Cleveland IWEAF New York WFI Philadeiphta Chicago Minoeapelis - y WDAF Kanaas Lity IWOR Newsrk WDAP- Eansas City WGBS New York WHN New Yo IOCO Minneapo! Springfeld Ehila Chicay Priladeiohta Boston WDAR Philadelphia WIAX Clereland KDKA Pittsburgh KDKA Pittsburzn WNYC New York WCCO Minzeapolls WHAM Rochester WIS Chicago WMAQ Chicago WOO * Fhiladetpkia TNAC Boston PO Ban Francisco WAHG Now York -WEAF New York bt Chicage “WBZ Springeld WOC Davenport $.EEI Boston K8D" st Louts Davesport WNAC Bostor WCCO Minpeapolls WNIC New York KDEA Pittsburgh WDAR Philadelpbia WHB Kanws Clty ¥ Los. Augel KIOWR i‘_«:mr:" o : el rey 2 WEEI Boston- 5 Blstes KYW Chicago wark Rafiroad Orchestra .. WHAS Louieville WIZ _ New York WEAP Fort Worth LIKDKA Pittsbureh PO ‘u"“""flm pringtle Los Angeles Nawark K¥T WOR WEAT' New York KYW Chicago idiers’ Orphans’ Home WOO - Dase; CN&‘P: Chicago ; ity WDAF Kansas WOR N.w:fl.p s . IN New Y‘"l!ke. FEEL Bosten WNYC New York KFKX . Hastings oy WEA! woN WMAQ KHY Los Aageles New York KYW Chic WEN New Fork WOO ' Prlladelphia WMH Cheinnati WLW Ciacimoat] WMAQ Chicago EPO _ San Frazetsco YWDAR Philadelphle WWJI Detrolt KOA' Denver, Colo. WNAG Boston WEAF New York xrI KFQX A "_’" Pittebu Newagp 4 KDK. ¥ A L h':l .-WEB Atlanta +.WOR Newark seidseses ssEsEsuntEs . GBS ESSURE & SEUESSSSSy SREINRES MR BRERER phin & LEE3RER B85 H $688 - b ot Easin (14 558 883 syeEsy st B I F¥EENENE d8s8 B8 sabEls 4 2 distances with small impulse might do it. So the Martite beg out radic waves. Have we begun to catch them? It is highly probable that we have. Put on vour telephones any night about 3 and vou faint whispers great black pit e whispers by even our most into the mysteries of wire- So it is not at all absurd to contemplate the posaibility of thelr originating on Mare. But catching signals them are very differ. All codes or cipher. of two classes: the the substitution or cannot and reading things. fall into one are ei e transpc | type. Any Code Decipherable, The outstanding feature of all such schemes is that no code or cipher Nas ever been devised that not capuble of being deciphered! When we earth-borns start to de- cipher any strange combination of marks and symbols, whether written or signaled by our fellow men., wi | have a great background of experience to go on This i{s our first clua to the And here the archeologist cipher must star What experte mon to the Martito trial men For instance: The people of Mars must have figured when the moon gets between us and the sun. Hence to establish a symbol for that phenomenon they would send some- thing, say groups of three long dash- es, every time we had a solar eclipse. Then, after we-had become convinced that the signals were coming from outside the earth, we for our part would wait until some astral body got between Mars and the sun and send a similar signal. If the signal were promptly repeated we would at once know that it was Mars with whom e were talking: Thenceforward, three long dashes would mean ltterally eclipse. And from that one fmage a number of valuable abstract meanings could be evolved, such as: Stop, because an eclipse ~ stops light; - or night, or death, and so on. (Copyright, 1924, Popular Radio, Inc.) CHURCH GIVEN NEW RADIO WAVE LENGTH Commerce Department Issues Or- der to Local Station Due to Interference. d be com to Terres- Interference in the broadcasting of church services between stations WDM, the Church of the Covenant, and WCAP, the Chesapeake & Po- tomac Telephone Co., has .resulted in an order issued by the Department of Commerce: changing the wave length of WDM to 284 meters. The change was made yestorday. afternoon. Numerous complaints have come to the Department of Commerce recent- 1y, with a number coming in today, of interference between the two sta- tions broadcasting Sunday church services. Although the Church of, the venant was ordered several mohths ago to change its wave band to 275 meters. from &bout 360, the band has not been materially changed and the station has been operating on a wave band approximating 354 meters, ac- cording to the radio division of the department. Listeners-in complained to the de- partment that they could not sep- arate the two services sufficiently to get elther one clearly. An investi- gation by the Commerce Department disclosed - that although WDM was supposed ‘to have changed . its wave band’ only a few days ago to 276 meters, 'In reality its signals came on a wave band 75 meters higher. Crystal set users and those with small tube sets found it impossible to separate the WDM. broadcast and the ‘WCAP broadcast from the First Con- gregational- Church yesterday, GAME TO BE:-BROADCAST. Notre. Dame-Leland - Stanford - Bat- tle to Be Put on Air. ‘WGBS, New York, and WGN, Chi- 0, will broadcast the Notre-Dame- Leland “Stanford foot ball game on New Year day direct from the Pasa- dena bow), Pasadena, Calif. A play- by.play account will. be sent over leased ‘wires direct to WGN and from there to WGBS. The game is scheduled to begin at 2 o'clock, Pacific time (5 o'clock, astern standard time). This s the ret time in radio history that the Past has had an opportunity to hear & play-by-play description of-&-Pa= g Coast. epdriing pvents p 3 plification found t while some of can be operated from c the operating characteristi; other tubes are such that controls are necessary. In ruch cases the fillament cir the recciver can be a comb eparate uable panel spac Usually tub. the datector tubes are used in plifier stages. Control of Amplifiers. A good method to follow is to have | contac it ix best to use individual | 464 Pa. Ave. N.W. ¥ the 1 anklin a rheostat to control all the frequency amplifier tubes, another rheostat for the detector tube another rheos qQuency amplifier tubes. shiown below. >ws the filament circ a detector and two fo frequency amplification this clrcuit the first rheostat | controls the filaments of the first two radio frequency amplifier tubes; t second rheostat controls the fllament of the third or detector tube, while the third rheostat controls the flla- | ments of the last two tubes which |are used as audio frequency an flers. In the radio frequemcy circuits there is never any need to light one tube and keep the rest unlit, but in audio frequency tubes are lit just as mes desirable to use only one stage of amplification and leave the other tube out of the circuit. Both Tubes Lit. In the circuit shown below both audito frequency tubes are lit just as €oon as the current in the filament circuft is turned on and the only way to keep the second tube from lighting when it is not required is to take it out of the socket. It is possible, however, to break the filament cireult to this tube by a filament switch inserted In the lead BROADCASTERS TOLD T0 CURB HARMONICS Department of Commerce Issues ‘Warning When Listeners Com- plain of Interference. A warning has been, issued to broadoasters by the Department of radio | and | for the audio fre-| The wiring diagram of such a cir- | is NOT on the Box, it is M‘ BROMO QUININE “There is no other BROMQ QUININE” vae.n Safe for more than a Quarter of a Century as an effective remedy for COLDS, GRIP and INFLUENZA, and as a Preventive. Price 30 Cents. The First and Original Cold and Grip TabliJ Children’s Commerce to eliminata harmonios, one of the interferences complained of by broadcast listeners. The depart- ment_points out that the specifica- tions governing Class B, stations pro- hibit harmonic emissions A statement issued by the depart- ment sald) 3 “Interference from harmonics re- sults from the emission of radio power on one or usually several fre- quencies higher than the fundamental frequency, but at less intensity than the fundamental. Any tranemitting set, including tube transmitters, is subject to this fault if oscillating directly in the antenna circuit, and tube transmitters show the same tend- ency in addition when pushed to maximum output. The trouble can be practically overcome by the use of master oscillator-power amplifier systems and greatly improved by the use of loose coupling between oscil- lating and radiating systems. An effective remedy is 80 comparatively simple and inexpensive that it ought to be compulsory. If the principle of licensing & station to use only one frequency per complete transmitting system were rigidly applied, stations radiating harmonics could be dealt ‘with, because they are actually radi- ating appreciable power on frequen- cles other than that for which licensed. “Harmonics of the carrier wave of stations operating in the lower fre- quency ringe of the broadcast band or In the marine frequency band will fall within the range of the broad- cast frequency band and under cer- tain oonditions will prove to be a serfous cause of interference. It ls Tecommended that all possible steps be taken to minimize this trouble by technical means well known to the art and by careful supervision on the part of the radio supervisors. “The specifications governing Class B broadcasting stations prohibit har- monic emissions. Immediate action must be taken to eliminate the emis- sfon of harmonics. Supervisors will bring the above requirement to the attention of owners of stations fall. ing to gorrest this source of inter- ferenca® . % Winter Paradise Sunny winter days in California bring health and joy to children — and grown-ups, too. Clad in bathing suits, the youngsters build castles in the sand every day. Ponies to ride, picnics, fascinating pleasure piers, bright flowers, motor trips, boat "idu— endless wholesome diversions. Schools famed for excellence and beauty of surroundings. Special comforts for women and children es limited Lv. Chicago (C. & N. W. Terminal) 3:00 p. m. Ar. Los Angeles (3¢d day) 230 p. m. ‘Three other daily trains direct to California and two to Denver with connections for California. Stop at beautiful, historic Salt Lake City. For bandsome illustrated booklets, reservations and full information ask Any Rallroad Ticket Offics, or R. 0. Sm F. L. Feakins, Gen'l Agt., C. & Ry., Gsn’l Agent. U. P. System, 214 Pennsyivania B! 508 Com'i Trust Bldg. 15¢h & Chestnut Sts. 15th & Market Sts. Philadelphia Philadeiohia UNION PACIFIC