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Show EMERY 2S 1 2 i Wave Trap Eliminate Station Interference 51 0 fi2 Reception O. ICd by Music Critics Improved Audio Amplification Elevates Radio to Higher Plane. 1 variable type; 1 variable condenser, low-lo- ,0005-m- t type; 1 By JOHN F. RIDER ia Rdio World. The cause of the objections voiced a medl-nbj musicians against radio ashas been f musical entertainment removed. Simultaneously, with the Insame stroke, the goal of engineers terested In the development of audioatfrequency amplification has been tained. This step was accomplished noteby one who has made many of worthy contributions to the science and reception radio transmission H. P. Donle, the eminent physicist and His patents cover such engineer. Items as the alkaline vapor tube, better known as the sodlon tube; the splderweb coll, and many gas content tubes used in radio. The achievement is the development of a new system of such amplication known" as truphonlc, utilizing new electrical principles of operation. The electrical phenomena utilized for the energy transfer between the circuits in this system is not to be found In existing systems and Is the development of the - inventor. Timbre Kept Constant The greatest objection voiced by musicians against radio as a medium of conveying music has been tbat the reproduction was not natural ; that 13, It was either low pitched or tilgb pitched. Furthermore, that the relationship in amplitude of the fundamental and harmonic frequencies when reDroduced was not the same as that of the signal when trans mitted into the microphone. A van-ann- a In this reinttnnfihlD chances the ttmbre of the sound, and a soprano sounds like a contralto and a violin like a cello. They bIbo claimed that due consideration was not accorded by the receiver engineers to the elec friml laws and nhyslcal laws pertain ing to the conversion of sound into electrical energy, and the reception of this eteetrical energy and Its re conversion back into sound. Musi cians . agreed that when these laws nre ir!ven consideration and the proper relationship maintained between the well-know- n audio-frequen- cy of the fan will be natural. LI consists of 65 turns wound on one of the tubes. L3 Is 45 turns wound on the remaining-- tube. L2 Is wound on top of L8. but is separated from it by a sheet of empire cloth, or waxed paper, and has ten turns. CI Is the .001-mvariable condenser. The thewave-traIs as follows: of this ory The incomlna- - signal flows through coils LI and L2. The circuit comprls- lne LI and CI Is turned to me ire-quency of the Interfering station, and the condenser is then set at that posi tion. The circuit including C2 and CJ Is what is commonly termed an absorption circuit The condenser of this circuit Is rotated until the signal oi the Interfering Btatlon Is heard at minimum strength. The circuit, wher f. p the Bay colony In Massachusetts by Pilgrims In the year 1C20. Spain was not slow about seeking out the treasure houses of South ColAmerica after the discoveries by new a to umbus showed them the way world in which, they supposed, there was an endless treasure of gold and -- Themountain stones. precious blasting and heights, thin atmosphere winds of the upper Andes, where whal Is now called the republic of Bolivia Hob wore no more left unexplored than the hot and easily accessible onnetnl ntnlno. Historians of South America tell n h. sivfoenih century the a fi raitlPIHloiIS . find Of mtA Dn.nnh K?l?.liiaii iiiouc in rtniivin. then nart of Pern, and called the mine San Luis Potosi. Thia Is a name that recurs at several but no other places in "Potosi" has been as great as tnai ai San LuiS In: boilrla. "Potosi" Is a Knnnish word meaning a sudden and unexpected endowment of wealth, the same thing that English or Americans would call a "bonanza" And Potosi was the right word to describe the treasures of Bolivia. voi-iAroviimta describe San Luis Potosi as a typical mining commu p nlty. There was an exceptionally as the "fast life" in' the place, Isolation and hardships of life drove white men living there to seen ror gctfulness of their exile and lonell Whatever were noRR in dlsslnatlon. the Sixteenth, century equivalents of the western dance halls and drinking bars 6prang np In profusion In the Bolivian Andes, Men who- made-weal- th in tha minou enent it like water, Yet th nrovislons of the Spanish govern ment coverlne ownership of colonial mines were extremely strict, and there can be no doubt that most of It was borne home to Spain in the royal gal leons. it wna nnon the shins from San Luia and other South American treas ure houses that the English priva teers, such as Morgan and Sir Fran els Drake; preyed in the period of Spain's splendor. And, It was In a ' Spain's proudest fleet," "the "Arnmaar that Spanish grandeur was destined to start on a downward path, while English sea power began the rise which . carried it to Its present emi nence. t(.iin Latin-Americ- TO ANT. POST ON SET., Li vOOMOO. . .VuMit 1 OflO.OflQ a . iv.. population is increasing at and the population increase. Couple the flood situation est-e- ru flood control. a at the headwaters play big part in faces the danger that farming;the backbone of the country,' and forest cover en the some time in the future much of the Testation v. ureea ores watersheds of that section may entirely d.sappear. absorb, as sponge, large of the rainfall, and the forest floor, acting run-o- ff and aids m prevwmsg uuou- -. xu Efficient Wave Trap Which Can Bs Constructed at Low Cost In resonance with the Interfering sta- tion, will absorb almost all of the energy received from that station. The energy ts received from coll L2, which Is closely coupled to L3, and Is also closely coupled to LI. In this way elgnnls of other stations will be allowed to pass through, but that of the interfering station Is dissipated In the The resistance absorption circuit across LI and CI serves as a static-leaand is variable to obtain the best, adjustment possible. Itadlo News. k, JSaronV Rattery OTp In using the popular rubber-covereImpartial Amplification stranded hook-u- p wire, considerable This new system fulfills the requiretrouble was experienced in skinning ments and consequently nullifies the the ends for connections until the folobjections. The frequency range of lowing simple tool was devised. It n the truphonlc coupling units Is from consists of a large 87 to 10,000 cycles, with n practically clamp, the teeth of which are filed flat curve between 80 and 10,000 cy smooth. A small notch In the Jaws, cles. This means that the amplitude relationships between the frequencies of a complex wave within this bnnd r i will be retained without any accentua tion or attentuatlon. In other words, If n soprano sung a 1,200-cycl- e note, which contained for the sake of argu meut the third, fifth and seventh har monies with amplitude relationship of respectively 80, 5 and 2 per cent of KM the fundamental, they would be am Removtr That la Mad pllfled uniformly and the amplitude of Insulation From a Battery Clip. the fundamental and the harmonics would vary In the same proportion roughly the size of the skinned wire. This would make possible natural re Is also made with a tile. With this production. If tk fifth and seventh little tool you can do a neater Job, In harmonics were attentuated, the tim- a fraction of the time necessary to bre of the soprano's voice would be skin this type of wire with a knife, altered, and the reproduction would and there la no danger of cutting the not be natural. fine strands of the wire. Itadlo News. Another salient feature of this new system Is the minimization of phnse ancle distortion In the coupling unit Leaky Transformer Put and tube combinations. This form All Sets to Humming of distortion is very seldom considered One of the most bothersome things In the design of the average audiofrequency empllfter, and Is extensively to an owner of a radio set Is the location of a leaky electric transformer In present In many cases. his neighborhood. How System Works. Radio owners of Walterboro, S. C, The operating principle of this new recently had so much trouble with system of amplificatheir sets that the sale of radios detion is the attainment of energy trans- creased considerably. A radio, dealer fer through a medium of balanced put experts on the Job, who spent a electro-magneti-c coupling and capaci whole day going over the city trying tatlve coupling, a system dissimilar to to locate the trouble, but it was nol existing systems of audiofrequency until evening, when the electric lightamplification. The system la nonos ing lines were used, that they found dilating, and adaptable ,to average it. It all was centered In a leaky conditions without necessitating any transformer. As soon as It was reThe standard paired the g tpeclal equipment. that had antubes used for audio amplification are noyed the radio funs disappeared. satisfactory, The design of the units comprising Positive Phone Cords an individual coupling unit differ as generally speaking, much physically from conventional the best when the positive coupling units as does operate the principle of operation from ny side of the phones is connected to the lead of the "B" battery. Some conventional system. The balance postlve phone cords are marked wlib a red between the electro-magneti-c cottp-linitnd the capneitative coupling is stripe to Indicate the positive cord of the phones. But If the phone cord automatic within each unit, as to fr not marked try them connectand the amount of power tips are fluency one and then reverse these coned way passed into the system. nections. The positive side will be Indicated by the connection that fclves the clearest and loudest uignals. Rejuvenating Tubes The success of rejuvenating tubes Make New Radio Tube depends upon the equipment med as well as the ability of the operator to Production of a radio tube which nse It properly. Many make a mis- embodies the elements of three orditake In overloading the tube without nary tubes together, with two stages following it up with a gradual period of amplification, Is reported to have f overloading. In some cases Just been accomplished in Germany. This the reverse is the situation, as, for in- tube U only slightly more expensive stance, where the operator decides to than other types, It Is said, and radio give the old tube a period development is expected to be mateit J'ist moderate overloading, falling rially advanced by this invention. At to pive it a good shot of power at the present crystp.l and e sets precutset. dominate in that country. d buzz-sawin- riead-phone- audio-frequen- jr one-tub- ft a, a 6; ff Public School System Not Doing Anything to Reward Character and Ability By DR. LITTLE, President University of Michigan. Our public school system is not democratic because it has done mass of stunothing to reward character and ability. It moves the great receive All merit alike. all exactly dents forward all together, treating checked few are up as to marks for doing a specified amount of work, but can I do their full capacity. A passing mark is the goal of all. '"What to get through? " is the one question we have put in every student's mind. ' That isn't democracy. That plan doesn't breed leaders ; it kills them. The universities of the country have been suffering from an agIt is a tragedy for a young- democracy gravated case of academic when its institutions of learning Buffer from crystallization. Wa must learn that we cannot get real scholarship by hunting for it any more than we can find happiness by conducting a deliberate search for it. True scholarship is a byproduct of life spent in and service. It is not attained by cramming a certain number of facts . into one's head through the medium of textbooks. in a least A college education, at college supported by public funds, is the right only of those who have vision, ability and sincerity of purpose. Our system should attempt to reward those who are living up to the full measure of their ability. We must cive less attention to academic iaJiBffjiJ 1X1.' f... rir.nmrm emenritu an1 hnnActv in a hnv or rir1 Those are the things you can build upon. They lead to greater attainment And they have been left out of our academic system entirely. - - dry-ro- t. "America for the World" Better Slogan Than xiiiiei tea, rii&u South African Diamond Strike 1870 a black ABOUT INherdsman Inthetheyear Pcee State Orange of South Africa picked up a handsome yellow stone which he gave to the child of his Dutch employer as a plaything. Eventually it was proved to be a diamond of unusual worth. This is one of three stories told of the early fliscovery of diamonds in the Orange IUver country. A trader saw what ho felt sure was a remarkable diamond In the hends of a Kaffir mediThe fellow had been cine man. working some marvel or s "cures" with It, according to the stories told by the black folk of the countryside. It was so valuable In his eyes, for that reason, that the traderTfor "quite reason, had to pay him many cattle, sheep and sundries, to get possession of the stone. It proved to .be the famous "Star of Africa," which was later sold for $125,000. Another story tells how a child at a Bultfontein farm picked from the stucco wall of his father's home a diamond of some worth. This Is commonly given as the episode that set all the world to paying attention to the tremendous diamond wealth of South Africa. . Working the . diamond mines, which are deep shafts of blue earth, containing the diamonds- as scattered deposits here and there, became an extremely expensive process, and only companies of large means were able to carry on tho work successfully. From this situation arose the famous competition for control of important diggings between Cecil Rhodes, the colossus of South African development, and Barney Barnato. Eventually the Rhodes faction came out on top, but Barnato retained enough interest in the South African fields to become the center at a group of tremendously wealthy and Influential men. dta In addition to the blue-eart- h mond deposits, Sr.utb Africa has diamonds on alluvial sand beds, which the miners wash and pan, much as placer gold Is sought . From time to time, even to this day, tracts of thesa alluvial diamond lands are opened to the public, and a great rush ensues. Thote who wish to file are held back a distance of two miles from the land that Is to be opened until the word Is given for them to start. Then they race with all speed for the site of their clalmi Clulms are restricted to tn.cts 43 feet square, and one person can take up only one. clalin on the additional Thereafter, Erst day. claims can bo taken. The price oi the claims Is only nominal, but it I) said that less than 2 per cent of thcte who stake ctelms ever get any adequate returns from their searching (& Ml. Weattrn Nwippr Union.) Those Sensitive SweetwJ rain, permits gradual water western streams the run-obread basket of the nation drained by ia not absorbed as it should be. available supply of ram This condition helps to cause floods. The is wasted as flood waters. lh water needed for the thirsty crops is one of the lessons of deforestation set forth in the lorestry pnmcr rarmers nublished to mark 192G the semicentennial oi forestry, w and cities that Towns water. euffer on account of the lack of irrigation be would water their supplies depended on the mountain streams for, a deficient water supply, handicapped severely. In a thousand ways, m tue ixru . region due to forest depletion, causes hardships misfortune. . Reforestation must enter into any plan for control ot the Mississippi. the nation's bread basket, contributes Every acre of land in this valley, hold the absorptive surface soil of fields to flood conditions. Failure to n.dnrM nrrninst the denudation of erosion has contributed to a much these eroded lands. more rapid removal of the water that falls upon The census figures, coupled with the Hood lesson, put neiore you This backbone of the nation must problem the country must solve. " . not be broken. battery-connectio- audio-frequen- If AL8H . daz-Kiln- Ca By EDNA PURDY OUR of such treasure strikes of the Comstock Lod and Goldfleld, Nev, are events of but In yesterday In the history of mining fact of matter a the new world. As one of the richest mining strikes ever made In the western hemisphere took place before the founding of Plymouth ohms; variable resistance. .. STORIES 2 bakellte tubes, 3 inches In diameter, 4M Inches long; pound No. 22 DSC wire. by His Handwriting Association. LATHROP PACK, American Trea Ey CHAELES San LuU Potosi in Bolivia ss Knnw O.....H ....... Ynni. ,uui oneeuieart Uie rlOUU JTlUWiCii By THOMAS E. STEWARD low-."io- ss ,001-- condenser, Solution of Reforestation the Only Practical FAMOUS MINING STRIKES will A filter, or wave, trap which eliminate station interference Is shown Its construction In the Illustration. Is fairly simple, there being only two parts, although the adjustment of this filter is somewhat complicated. no However, once adjusted. It needs dial or twisting. further handling The parts necessary for this wave are as follows: S f'ASTLK DALE. UTAH m Ey BISnOP THIRKIELD, Methodist Episcopal Church South. The United States is in peril of failure in meeting those stern conditions of moral fitness, not to opeak of brotherhood, in her relations to South America and Mexico because of her adherence to the Monroe doctrine. These nineteen republics charge that the Monroe doctrine is interpreted in terms of imperialism to secure to the United States political and commercial ascendency over South America. They charge that it is not but a United States doctrine, in whose application do not share. they The United States, through its selfish interpretation of entangling alliances with other nations is in danger of shutting herself out from the brotherhwd-o- f the "world. We must do away with the slogan: "America First." This may mean America damned to selfishness, isolation and shame. Let the riogan rather be: "America for the world." Sensitive and Heiltant. J When you get that love letter have been waiting for t vmVS .wvos ,our 1IIi:us eye for ft signs which. If existing 1U your sweetheart as 'sensitive." light, delicate touch or nr. dleates a delicate constitution stand bard rebuffs. The upright stroke . 111. n ha line U ""I'cu 1 I la PBsllv ie wiu v tJ,e . rru- - a contain At the end loop. nll .. lernunai will stop of t3 short. vi uue wno lackj abmi and it turns back toward the e to express his thoughts terminal or . ...ofIf ft 1wrtJMJ - beginning of the writer Is sensitive J sentence This AI W was u i nomine Us because of u much Introspection or Notice the You will ta this to be the best key for telllog he or "she is to be handled "wit 'gloves., The person who Is lacking grit and the spirit always make a short most to the left of the upright 8ueb) pie become sensitive through feH a nesuancy to go ahead, always thini mg mat some one is going to crlticlJ mem. In tt self-pit- give-and-ta- His t Tell-Tal- e Bat These little seemingly nnlmportai strokes can tell a bigger story thai many a complete letter. t bar is made by the And as subconscloil mind there is a timid r denying its storj Ijft us look lcil his letter: If we tad confident great variety of 4: hesitant crosses we will bl safe in saying thai the writer know much about things. He Thoiu nunj Ige. man is veil many things. If the t bar is made with most d the line to the left of the uprigli we will play safe in saying that thl writer often "gets left." He is hesS tant and does not put his best feci He may "have a wealui forward. knowledge but being and timid he waits just long enou; for some one with less knowleda but more nerve to come along ati cluim the reward. Now we find the little t bar places accurately but low on the uprighta indicating that the writer Is goodHi detail and will be content to d for some one else for life. The t M high on the upright denotes one rti has potential ability to run his owif business and commund others. TM nsoendinz to richt sneaks of one wh has force and courage and hope. K it flies off to right of upright H may look for one who thinks rapid! and acts without much deliberation. ' d Is He Radical? an a'n-oth- er . 2 Failure of Children Too Frequently Fault of Those in Authority Ey DPw ALBERT W. BEAVEN, Rochester It (N. Y.) Minister. meaning W the faBH of the parents, the Sunday school teacher, the preacher and all the rest of us if the children fail. Yon can't hold - j is power with a flivver control, and that's what's the matter with the youn We are rut.t.im intn . 1 . people todav. i a k,ti r o nanus """"en deal great of power without an increase in those spiritual and moral MMa ,i,tu will help them to control that power. l. ' You five times as much give-thr- spending money as they used to machmes, eocial culture, unlimited freedom, and that nib for a high degree of moral ideals to help them to steer straight Ihere is cothing our young folks need so m,di today as the ideals of rehgton. A good moral character on the part of the majority of onr not to the interest of the few, but it is ctnens everybody's job for every honest pays the bills of the have, high-power- mr Really, Criticism of the Rising Generation Ia Not Waranted by Facts Cy WILUAM RANDOLPH HEARST, Newspaper am not ne who finds anything I think it is a wonderful X-w1 ! seen; and thh conclusion, when you think logical, tnd unavoidable. Ve know from researches in history - ami race has contmuallv i h rovrf ang . 4 - s' UDtil othtr .Isns in wrltln ' u 71 r but natu " t ? , WjjrM .nn old ArmemanJ Mount Ararat, has a shows one. Data gathered there AnU urnan could it sue ,1; Smallest Town in in soma maj be th eiact meai- - rf ' tWt an aged Armenian monk i0fi Inhabitant of what w BntnheWt tf ishing community s cominon people. His only owl. Angora cat and a fcw near in a ruined ,hurch hut. An! was once t,e Arm- al the Bagr.tlde klrgs of has some Biblical associate ill Ik judg-m1- Published archcoW that rt ung generation over the generations which Ths fact that these youn people diiT, thing? is cot necessarily en indi,, tio; of mo ' no of their tuperiovity. mu posed to the conservative. Is Indicated In the writing u r sible that the writer will beofw less argumentative nature. capital The latter part of the w.lll be abnormally high. mJ mean an erage case this would aw est In humanity at large. But " the sign for will look tll, Inform the trait of radicalism writer. This is found In prj angles and sharply pointed A sense of disorder will J entire visible in the writing. The , will appear as a JumbW atven f the down strokes will be emP' and indicating muhbomness en ' a capital Utter;s the start or a- - woru from base line but and coming down, the ann-c- " of the writer's sense ol tlsm. nU ,iBaifi Do not mk Note " n |