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Show THE TIMES-NEW- S, NEPIII. UTAH might be possible to reuch Clayton aftet nightfall. "I think we might try again, Moll," he said. "I think so. Will," ahe answered. He caught her to tdm. "You are the bravest woman I know," he said, kissing her. "We must aucceed for Kitty's sake." She kissed him back. "Of course, we shall. Will, dear," she answered. Wilton went Into the stable and called the dogs. They were lying with their noses together, and at hla entrance sprang to their feet with menacing growls. They knew very well what his advent portended, and It waa s had deserted plain that their wolfish temper waa compass. The during the night. thoroughly aroused. "They must have guessed that those Wilton had handled a refractory men meant to arrest you, or else they pack once before. He knew that quick heard them talking," said Molly. He stepped action waa necessary. But Wilton had hurried to the horse forward, and, as the gleaming Jaws stalls, separated from the dog stable gaped at him, and the animals preby a stout door. He breathed a creep pared to spring, snarling and quiversigh of relief. The second sleigh ws ing with rage, he brought his.. whip there. For a moment the thought of across ' the leader's nose with all hla possibilities had made his heart almost strength. stand still. immediately, with maddened yells, He came back grim and resolute. the pack leaped at him. Wilton swung "There's something pretty deep In all right and left with the whip, and then. this business," he said. "I know why the men ran away. The sergeant gave them the tip to. I saw him talking to Paplllon last night. And that's the reason why they wouldn't sleep In the shack because they meant to run. I suppose the policemen were afraid that they would make trouble, or try to help us. But I can't fathom It Those men acted like criminals. That's not the way of the police." Ho clenched his fist and swore under his breath. "I'll hnve those fellows broke for this, if I have to go to Ottawa," he said. "And I'm going to run down those breeds. If It takes me a lifetime. I tell you this, Molly: It's all bound up with Joe In some way or other, and Tom Bowyer's at the bottom of It." "But first remember Kitty," said Molly softly, laying her hnnd on Wilton's shoulder. Even the slight touch made him wince, for the pain of his broken arm was becoming unbearable. He realized that In all probability he was In for a long spell of Illness. He knew that the bone would have to be reset His head felt strangely light, and the ground seemed to slope downhill from him In all directions. But he shut his teeth hard, and would not let Molly guess. And a feverish energy took possession of him. He must hold out for the Journey, until after the shareWltn maddened Yells, holders' meeting until he bad told Immediately, the Paek Leaped at Him. Kitty! "We'll take the police sled and start retreating till hla back waa against at once," he said to Molly. "It looks the wall of the shack, he laid about as If a storm was brewing. I'll tell him with the abortened stock. Andersen to let those fellows go about With gaping Jaws and wicked, bloodnoon, and I'll leave the revolver with shot eyes, the pack came on again and him." again, leaping at him, tearing at hla Inside the shack they found the po- clothes; one sank its fangs into his licemen eating their breakfast on the right hand, and, aa he freed himself floor, with the caretaker diligently with a smashing blow, the otlters were serving them. They were still bound, upon him sideward. but their hands were free. In an Instant he was struggling with "Turn them loose at noon, Ander- his one hand against the heavy bodies them Wilton said. "Give sen," enough that bore him back, shielding his to carry" them on their way. throat, slap-ban- g thrusting the whlpstock into Just turn them loose and see that they the red, cavernous Jaws, while the anhaven't any dangerous weapons to do guish from his wrenched shoulder alyou mischief with." most made him scream with pain. "You bet I take core for that," Everything was swimming round Swede. the grinned him. They had him down. Their bellet Andersen harness the lowing howls grew fainter In his ears. Wilton dogs, to save his strength for the Jour- Mechanically he kept his right hand ney. In a few minutes the sled was at his throat The left, torn from the ready, with the sleigh carrying Joe's sling, flopped grotesquely In front of body attached behind, and the huskies, him. He heard the click of the fangs harnessed, sitting docile In the snow, that met In It and felt no pain. He awaiting the command to mush. was swooning. The sun was Just showing above the he heard the "snnp-snap- " horizon when Wilton and Molly start- of Suddenly A leaping body seemed a revolver. ed on the second stage of their Jour- to stop short In the air, nnd tumbled ney to Clayton. on him, knocking htm on his face. Dimly he henrd the discharge f Uie CHAPTER V. weapon again. And then, out of a Molly's fuce, and her The Bitter Cu his cheeks. tenrg ujKin Hardly had they topped the rise beShe was kneeling beside him upon hind which the cache was situated the floor of the stable, stanchlsg the when the full force of the wind caught blood from his wounds with a strip them. A blizzard was sweeping up, torn from her petticoat Tfpon the mornIn It all thnt ami grew strength floor of the dogs, dead. Two three lay hurnoon a It was almost ing, until by were and mooning In a more writhing unricane. They pushed on doggedly corner. Wliton up. til about one o'clock, avoiding the distant bowed her face looked his and upon Molly temptation to rest at the auxiliary broke Into hysterical weeping. It was caches which had been established I .ie first sign of weakness he had ever along this part of the road. in her. He held her In his right seen At one o'clock they came to an arm. lie saw that his blood had empty cache and horse stable, which stained her hands, her clothing. had been built In anticipation of win"Molly," he said weakly, "Molly" ter development work, and had formed She wept In utter hopelessness. "It the hub of many radiating she sobbed. "Let Ut rou ds. They hud come no more is useless. Will," We can't go on. They have die here. a was still than six miles, and It g'xxl torn you. Your arm Is broken again. fifteen Into Clayton. By this time the snow the snow" the Oh, blizzard hail Increased to on Intense S!ie seemed to have completely violence, driving great sheets of snow broken down. She crouched beside along the roiid. It was Impossible to hitn. her whole body shaken by her face sin h a hurricane any longer. is. And In his aathy It seemed to "We'll hnve to wait tl!l this lets up sol him good to lie there, with Molly at a bit. Molly," snld Wlltnn. his side, till he grew stronger, or The little shuck, hardly more than and Ilemember Kitty "Molly! four walls and a ro.f, was unoccupied. Joe!" Wilton broke down the door and wept Ills words seemed to galvanize her In. lie found the key of the stable, back She got up. Hpr unlocked It. and unharnessed the dos. face to courage. composed. With suddenly grew lie drove them In and shut the door. streaming eyes she bandaged up hi Then he took the blankets out of the wound. She Invruvlsi d another sling, Into went the shink. and sleigh to bold bis arm. To build a fire was Impossible, but "I shall walk Info Clayton," she said. they nte biscuit and tinned beef, wusl. "You must lie In the shack. Help will Ing It down with water. noon tomorrow, perhaps come "It'll have to let up soon." snld Wil- sooner."by ton. "If It doesn't, we'll Just have to face It aguln." A dozen times he had regretted hav"Seven miles yet, and the ing yielded to her Insistence to acat nlna." he as Id. "I meeting's company him. Traveling In that make cant It, Molly," weather was hard on a man, let alone A girl such a Molly. He looked at (TO BK CONTINUED.) her In wonder as he saw her oppnrent nnconcrni, the courage with which she Repulsive Birds. faced the difficulties if the Journey. The greatest bird gourmand fa the But hla fears were centered chiefly Beven on Kitty. Suppose he coutdai't go on! vulture of southeast Kurwpe. Suppose tie couldn't be at the share- vultures can strip the carcass of a horse In half aa hour. After aach a holders' meeting on the morrow! Towsra the middle of the afternoon neat 'thef raa fly only a few ysMs. bodies. rhe wind seemed to have teseti4. Taey stand wttfc frffd-Aa- t eyes, triage, aa4 bleed-ska- t iImmis th drive snow still swept In idrmtptnc hideous crVea, hlloiliog clouds along the oad It The Big M By nt CIRCUIT WITH GRID LEAK RESISTANCE VICTOR ROUSSEAU ITIWAIT KIDU COMPANY "HANDS UPl" SYNOPSIS. Looking over Big Muskeg, a seemingly Impassable swamp In the path of the Mlaa-tib- i railroad, Joe Bostock, builder of the line, and WHton Carruthers, chief of engineers, are considering the difficulties. A rifle shot Instant, ly kills Bostock and breaks Carruthers' arm. Carruthers tries to the carry the body to a post of McHudson's Bay company, where McDonald's Is Donald the factor. daughter, Molly, sees Carruthers struggling In the muskeg and drags him from the swamp, with his burden. Unaccountably, her father objecst to her saving Carruthers. Weakened by his wound and exertions, Carruthers Is disturbed by the appearance of Tom Bowyer, Bostock's business rival and personal enemy. Bowyer Insults Molstrikes him. ly, and Carruthers Carruthers declares his love for Molly. She promises to be his wife. Carruthers has to reach the town of Clayton to attend a meeting at which Rostock's enemies plan to wrest control of the Mlssatlbl from him. Molly goes with him. They are delayed by a storm. Attacked by his doers. Carruthers' life Is saved by Molly, who Is forced to kill the animals. CHAPTER IV Continued. "You will, eh?" sneered the sergeant, with a side glance at Myers. "Got any sort of special pull In Clayton?" "Enough to put the Hd on you." "Well, I guess you won't be goln? Into Clayton yet a while," Jeered Peters. "You're coming hack to the Pas with us and Joe." Wilton realized that Myers had come up quietly upon the other side of him. He had the bewildered feeling of being In a trap. "What the devil do you mean by thai?" he shouted. The sergeant thrust his face forward Into his own, grinning maliciously. "It means that I arrest you for the wilful murder of Joe Bostock," he answered. "And I warn you. In the king's name, that any statement you make will be used against you." At the same moment Wilton felt the touch of steel against his right wrist, and swung his hand free Just In time to avoid the snap of the handcuff, looking at Sergeant Peters after the (instant's sideward glance, he found iJinself covered by the heavy, regula-lo- n .45 Colt. Before he could stir. Myers had seized him from behind and made a violent effort to slip the handcuff upon his wrist. Wilton heard Molly scream. The girl came running out of the room with her hnlr tumbling about her shoulders, and caught at Myers' arm. The oiretaker started toward them, still holding the frying pan, In which he was cooking the potatoes, his face working with rage. "You d n fools!" he shouted, lapsing Into his vernacular In his excitement, "you got It ail wrong! Mr. Carruthers was Joe's best friend. So thnt was your game when you come here last night, eh? You'll get broke for this job already, both of you fellers, I tell you." Molly was grasping at Myers1 hand as the rnnstnhle still fumbled nervously with the handcuff. "Won't you Turn listen to common sense?" she cried. "Mr. Carruthers Is the chief engineer of the line. All his Interests sre bound up with It. Why should he want to murder Joe? lie was Joe's best friend. Rveryone In Clayton enn tell you that. Why, he risked his own life to save him! Somebody' put you on the wrung track. They're trying to make use of you to keep him out of the way while they ruin t!;e line. And you'll pay for your mistake, that's sure!" And, Willi frenzied desperation, sie succeeded In pushing Myers away from Wiltn, and Interposed between hliu snd the sergeant, whose revolver pointed steadily at his forehead. I'etcrs scowled viciously at her. "You can (ell all thnt nt the Inquest," be siinpped. "I've got orders to bring Jim In. too. Get out of the way !" Al that the superhuman tension thnt held Willou's rage In bounds seemed to sn.ip. Ills eiirs were ringing, and a spotted mist flouted before his eyes. Through this be saw Peters an Infinite distance away, the revolver, now hardly lurgrr than a pencil, pointing nt his bend. Behind the sergeant be saw Andersen, a doll like figure with a toy pan In his hnnd. lie leaped nt Peters, beiird the wea;oo discharged, and was conscious of the sting of powder on b's forehead and a commotion In his lisir. I'rlers had shot to kill, but the vex pon. the least bit diverted by Mo. ly's Intervention, hsd been re aimed at Wilton's forehead a little hurriedly, and he hsd forgotten that the strong miiitinltlon, of which complaint bail frequently been made by the police superintendents, was apt to throw the bullet high at short distances. Wilton shot his uninjured arm for ward with a virions swing that caught he sergenn on the cheek ard sent But the Mm teKgerlrig backward. force of the Wow. commnnlcatd t Wilton's left shoulder, wretied th" round r1 ferced a groan of rln ' his i'i I'etera reeled, regained his balance, and rushed forward uguln, swinging the revolver' aloft, butt forward. In his hand. With his powerful build he could have delivered a blow that would have crushed Wilton's skull. But before the blow fell Andersen had raised his pan and brought It down edgewise upon the sergeant's head, cutting the 'scalp to the bone-andrenching the man with the boiling grease. With a scream of pain Peters stumbled forward, letting the revolver fall from his hand, slipped In the grease that bad begun to ooze along the floor, and fell full length on the planks, where he lay writhing In anguish, and trying to clear his eyes of the molted fut and the blood that streamed down his forehead. Instantly Molly stooped, snatched up the wenpon, which had fallen at her feet, and covered the constable, who bad flung himself upon Wilton again. Myers stopped dead and threw j his hands up automatically. "Get over there !" said Molly briskly, pointing toward the wall behind the sergeant. Myers obeyed Immediately, and took his post against the wall, the picture of confusion. Peters atruggled slowly to his feet. lias face and were covered with a film of grease, over which the blood from hla wound was trickling. The tnhles were turned with dramatic completeness. "You know what this means !" spluttered the sergeant, trying to clear the fat from his eyes. "I do, and I'll take my chance." answered Wilton, gritting his teeth at the pain from his injured arm. The wound did not seem to have reopened, but either his blow or the grasp of the constable had displaced the broken ends of the bone, and he could feel them grating together at his slightest movement. "Keep your bands up, both of you !" he ordered. "Give me the revolver, Molly! Got a rope, Andersen?" "Well, I guess I have," grinned the Swede. He stepped to a packing case behind the stove, and brought out a short coll of manlla, which, with a kitchen knife, he sliced Into four or five lengths. "I tank I tie them to that beam." he said. Indicating one of the vertical uprights of the wooden shack. "All right, Andersen," said Wilton. "Tie em so that they can sit down. They'll have some time to wait, and they may get tired of standing." He took the revolver from Molly and slipped It Into his pocket. Peters let loose a string of vicious oaths as Andersen proceeded to truss him up, but neither ninn offered any resistance. The caretaker stepped back and looked ut his work with critical satisfaction. "I tank you get to Clayton by tomorrow night, all right, Mr. Carruthers," be snld with droll complacency, putting some more potatoes in the pan. Despite their elation. Molly and Wilton could ent but little, washing down the food, which they could hardly masticate, with gulps of coffee. They were glad to get out Into the air. Wilton made bis way to the ruche, unlocked It, ami took out some frozen fish for the dogs, which were giving tongue vlgon.nsly Inside the stnble. "Here, Paplllon!" he called. "I can't make out what's the matter with those men, lying In their blankets at this pea-jack- Maw wi 1 "Keep Your Hands Up, Both of You!" hour, with the dogs howling for their breakfast." he said to Molly Indignantly. "They must have known I'd feed them before starting on a run like the one we've got bofore us. I auppose they heard the row and got scared back to bed." he added. But no answer ox me to his rail, and suddenly Molly tittered a cry and On the other side of the pointed, stable were the tracks of a sleigh, obliterated at trie entrance by the falling taow, which bad drifted against the '.mlldlng. WUtoo wrenched Pie door po, I (is lelgh and the doge were gone, togeth it with the rifle, shotgun and transit Takes Plaw of "C Battery-H- ow Impedance of Flow Is Determined. hakf-breed- semi-stupo- soon collect a sufficient negative charge to reduce the plate cur-reto aero and the tube would ceas to function. A grid leak having too low resist, ance will not allow a sufficiently lilan negative charge to collect on the grlu. resulting In a very small plate current reduction and weak response in the telephone receivers. On the other band. If the grid' leak la of too high resistance, too high negative charge will collect on the grid aad the condition of no grid' leak will be approached. In any electrical circuit that has a difference of potential applied to It, the current that will flow depend upon the "Impedance" of that circuit; Just as In the flow of water through a pipe, the quantity of water that will flow when any given pressure la applied depends upon how much the flow through the pipe la Impeded by tb friction of the particles of water- - against the aides of the pipe and against one another. In the electrical circuit th relation between these three quantities Is that the current which will fljuv is equal to the applied dlfferences'Sf potential divided by the Impedance, where the current is In amperes, the applied difference of potential is in volts and the Impedance In ohms. On would soon Tig. 13 shows a aet of curves for a vacuum tube clccnit containing a grid leak resistance aa shown in Fig. 11 instead of a "O" battery with the same symmetrical alternating difference of potential applied to the grid circuit There being no "C" battery potential applied to the grid, the grid In Fig. 11 la normally at zero potential with respect to the filament As the positive half of the first cycle of the alternating difference of potential Is Impressed upon the grid circuit see Fig. 13 the grid Is made positive three-electro- TlMC APPLICO GRID POTCNTlAk - Z J RiOPOT.NTlAl. I TlMC Chawoc fHinr.r am Asm A with respect z . -- rost to ; LCAKOMSRlO . A w .- .. i. 1 I J REOUCTION IH BLA.TC CURJUNT DIAPHRAM f ith respect to the filament. Being positive with respect to the filament causes a certain number of electrons, which are' negative charges, to be attracted and caused to give up their negative charges to the grid. During the next or negative half of the cycle of the applied grid potential the grid Is made negative with respect to the filament but does not lose the electrons again. Thus a negative charge Is built up on a grid during the positive portion of each cycle, the cumulative effect of which Is to produce a decrease of the plate current during the period that the alternating difference of potential called a wave train Is applied to the grid. After the alternating difference of potential applied to the grid haa ceased, the grid does not Immediately lose Its negative charge. The grid leak forms a high resistance path for the negative charge of the grid to leak off down to the filament slowly. If no grid leak were used, the grid NEW RADIO FILTER A MARVEL Campbell Device That Separates phone and Tslsgraph SPARKS Tele- Although much has been said and written about the remarkable filters employed by the telephone lines and by advanced radio workera for the neparation of telephone and telegraph messages, saya the Scientific Ameriit remained for Dr. Frank can, B. Jewett chief engineer of the Western Electric company, to demonstrate how the .filter permits of transmitting radio telephone and telegraph messages simultaneously, and of separating tlfcse messages at the receiving end, at a meeting of the American Institute of Electrical Engineers. The preBent electrical filter is the Invention of Dr. U. A. Campbell, a telephone engineer, and make It possible to separate the various frequencies at which the Individual telephone and telegraph messages are curried. The detected electrlcul current In a radio receiving set Is passed through the filter wblch separates the frequencies of the telegraph message from those of the teleplume. The filter'dlffers materially from the ordinary tuned circuits familiar to the radio enthusiast, since It separate not single frequencies but bands of frequencies of any predetermined width. The filter makes It possible to separate the band of frequencies comprising the telephone message from the band comprising the telegraph message. It can also separate one telephone message from another. - "Ground Antennae." Some relief from bothersome radio "st'aya" In summertime can be ob- tained with sets hntinf food ampli- fiers by using a "ground antennae." Thla la a long insulated wi-- e ran In a shallow trench or on the W'fnre of the ground. The ground wlr should be run In the direction of the station from which the mint signals are to be received, and should preferably be several hundred feet long. i Te Reaulate wave Lanotha. variable condenser when properly connected In the antenna circuit may be used either to lengthen or shorten the wave length range. Besides this, the degree of regulation Is inwn liner, fur at best the loading roll raa tune In only to within a single fur a. If a loading coll of the ktoloi toll trs la ased. A i When our concerts come oTer " the and we plug into the lamp socket, light music will be given added popularity. The railroads recently broadcasted a safety message from stations In Pittsburgh, Chicago, Newark and Springfield, Mass., calling attention to the fact that 84,000 people have been killed or Injured the last year In this country while trespassing on railroad property. If you do not know the code and wish to receive messages, there Is a device on the market at the present time which records the Incoming signals on a piece of paper. The paper may be then read at the will of the operator. This method gives the person unacquult.ted with the code the privilege of hearing from stations which would otherwise pass over In the usual "buzz, buzz," style so unintelligible to the radiophone fans. While lying In the harbor of Iqulque, Chile, on the west coast of South America, the radio operator of the steamship Santa I.ulsa clearly heard the entire broadcast program of Station WJZ. The distance Newark'a station separating from the steamship In an air line was 4,000 miles. As a result of the widespread interest In wireless telephony one manufacturer has brought out a set of six double-facerecords for teaching the telegraph code. Many persons, af. ter listening to the radiotelephone concerna, have tuned In and heard the familiar "buzz, buzz" of the wireless telegraph message being sent. Curious to know the meaning of , the sounds they have cast about for some mean of learning the code phonograph records. The Canadian government Is considering the question of the amateur radio field. Present plana are to allow the amateur using spark transmission a wave length op to 200 meters. whU tfiose using continuous wave transmission would be permitted a wave length op to 250 meters. "wlred-wlreless- Messages. r, transposing this equation the Impedance is equal to the applied voltage divided by the current The Impedance of a vacuum tube plate circuit Internally between the filament and the flate, when the grid la at aero potential, la an Important constant of a vacuum tube and la called the Internal plate Impedance. The Internal grid Impedance of vacuum tube used in a radio set aa a detector determines the Impedance of the telephones that will give best results when connected In the plate circuit of that particular tube. It !s then not only the resistance of a pair of telephones, but also the Inductance and the distributed capacity of the winding that cause the maximum current to flow In the telephones for a given change In grid potential. The Internal plate Impedance of a vacuum tube varies only slightly with different plate voltage. It Is more an Inherent characteristic of the tube which la determined by the design. I HtMKIMI 4 |