JflfIMBER 1944 " Hme ifouU Uttu ^ To Scfuty Bo^j 0 MOMMA WAS LOSING PATIENCE WITH ME AGAIN. She says: “I’m getting plenty sick of you looking like Flaky Joe, Hair’s Horrible Example! And I’m tired of you spend- ing money for a lot of junk that doesn’t help. You’d never listen to me who has been a nurse most of her life, but you’ll liner, this time. Sonny Boy!" ^ ''THIS PROVES WHAT I'VE TOLD YOU for months,’* she went on. “You’ve got a case of infectious dandruff that ought to have repeated Listerine Antiseptic treatment and persistent mas- sage. I’ve seen the records on the Lambert research, and I know what Listerine Antiseptic can do in killing the ‘bottle bacillus.’ And so, Baby, we’re starting right now!” "YOU'RE ALMOST EVERY MORNING ANV HUMAN AGAIN, NIGHT SHE HERDEV ME she said a few weeks after, into the bathroom and “and your hair looks like doused on Listerine Anti- it used to. After this, may- septic. Then she followed be you’ll listen to Momma It with a swell, vigorous when she tells you that massage. Boy! Did my you ought to use Listerine scalp feel like a million. Antiseptic, every time you And the way those ugly wash your hair, as a pre- flakes and scales began to caution against the infec- disappear is nobody’s bus- tion coming back.” Will iness. What a treatment! I listen? You said it! Flakes? Scales? Itching? Germs? LISTERINE ANTISEPTIC-itfOlVI hese common little symptoms may mean ugly flakes and scales and alleviates itching. T that you’re in for infectious dandruff. Your scalp glows and tingles and your hair Better start at once with Listerine Antiseptic feels wonderfully fresh. In tests, this twice-a- and massage, the treatment that has helped so day treatment brought complete disappearance of, or in, many . that may help you. Listerine Anti- marked improvement the symptoms septic goes after the infection itself— kills mil- of dandruff within a month to 76% of dandruff lions of germs, including the "bottle bacillus", sufferers. Listerine Antiseptic is the same solu- tion regarded by many authorities as a causative that has been famous for over sixty years agent of this type of dandruff in oral hygiene the same At time it helps to get rid of those Lambert Pharmacal Co., St. Louti, Mo. ; ! This is a radio tear — and victory will bring a radio world! That’s why men with foresight and ambition are studying radio now — at home, in their spare time! They know that if they’re drafted, radio training will make them eligible for further valuable train- ing with the Armed Forces — for higher rating and higher pay — for more interesting assignments! And when they return to civil life, they’ll have knowledge to fit them for a well-paid job in radio, television vr electronics! You can study an I. C. S. Radio Course in your spare time — at low cost — starting right now! Mail tliis coupon, and we’ll send you complete information on the famous I. C. S. personalized teaching meth- BE SMART- od, which has helped thousands along the highway to success This information may well be Study Radio Now! 'worth thousands of dollars to you — yet it’s yours for a 3c stamp! special tuition bates fob members of the armed forces BOX 4902-R, SCRANTON 9, PENNA. B99B99 Without cost or obligation, pleaso. send booklet and full particulars about course before which 1 have marked Z: hleehanical Engineering Business and ] RADIO SCHOOL D Lumber Dealer n 1 ELECTRONICS Sanitary Engineerms Patternmaking Academic Sehoola Structural Draftm* Reading Shop Blueprints j RADIO. 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Archittctural Steam Electric Secretarial , g D | P Steam Engin(»j Stenography* Traffic Management Aeronautical Engineering ToxtiioToxtilo School n Architecture D ^ O Bridge Engineeringj D Airplane Drafting OD Cotton'Manufacturing'Cotton' Manufacturing Language School Civil Engineering Foundry Work Rayon Weaving '5 O French D Contracting and Building D Heat Treatment of Metals D Textile Designing Spanish P HigWay Engineering Mechanical Drafting Woolen Manufacturing a Good English! Name. Aj/o Home Address Present Working City, ...State Position. Ilotrrs Canadian residents send coupon to Ini^nationol Correspondence Schools Canadian, Ltd., Montreal, Catiada. British residents send coupon to I. 0. S., 71 Kingsway, London, W. O. 2, England. AST—1P SCIENCE FICTION Ref. U. S. Fat SR. CONTENTS NOVEMBER, 1944 VOL. XXXIV, NO. 3 SHORT NOVEL KILLDOZER! by Theodore Sturgeon 7 NOVELETTES WHEN THE BODGH BREAKS, hy LewU Padgett 75 REDEVELOPMENT, hy Wesley Long .... I.IC SHORT STORIES DESERTION, by Clifford D. Simalc ..... 64 ALIEN ENVOY, by Malcolni Jameson . .116 THE HARMONIZER, by A. E. vem Vogt . ,169 ARTICLE TIME FOR A UNIVERSE, by R. S. Richardson . 89 } READERS’ DEPARTMENT THE EDITOR’S PAGE B Editor COVER BY TIMMINS JOHN W. CAMPBELL, JR. Illustrations by Kramer, Orban and Williams Tbe editorial contests bsee not Seen pnbUsliei) nefon. are proteetst lir copyright and cannot be reprinted vlthout pnbliaber’s permlssloii. AH stories In this magazine are Action. No actnal persona are designated by name or character. Any siinllarlty la coincidental. Monthly publication issned by Street A Smith Publications. Incorporated, 122 Bast 42ud Street, New lorl 17, N. T. Allen L. Grammer, President: Gerald H. Smith, Vice President arid Treasnrer; Henry W. Ralston, Vice President and Secretary, Copyright, 1944, In U. S. A and Great Britain by Street A Smith Publications, Inc. Reentered as Second-class Matter. Vebmary 7, 1938, at the Post OIBce at New Terk, under Act of Congress of March 3, 1879. Subscriptions to Countries in Pan American Union. 12.76 per year; elsewhere, $3.25 per year. We cannot accept respondblUty tor nnsoUcited manuscripts or artwork. Any material submitted must include reuicn postage $2.50 per Year l« II. S. A. Printed tn e^^oiao the U. 8. A 25t per Copy NEXT ISSUE ON SALE NOVEMBER 21, 1944 — CRT When broadcast radio first ad- used in the larger television sets. vanced beyond the crystal detector The 1-inch miniature was extremely days, the triode amplifiers were the popular with radio “hams,” since it only type available—the UX-201-A made it possible to check the modu- and its brethren of dear memory. lation patterns of their transmitters, And I do mean dear—seven dollars and sold for a reasonably attainable a tube, they were, with a service price. The size was too small for life guaranteed to be all of one most purposes, however. hundred hours. They were popu- But the 2-inch, 3-inch, S-inch, larly known as bulbs—and why not ? 7-inch, 9-inch and 12-inch sizes in- They lighted up like a lamp bulb creased in price at an exponential and it took a storage battery to run rate. Also, and worse, the power ’em. supply required, and the danger and When this war began, the cathode delicacy of the tube and its asso- ray tube—the CRT—was straggling ciated apparatus increased exponen- out of the high-powered pure- tially. The 1- and 2-inch sizes science laboratory into the engineer- could be powered from ordinary ing research departments of the 400-volt receiver-type power sup- electronics industries. They’d even plies. The 5-inch tube calls for a gotten into some consumers’ goods 2000-volt power supply—which —the television sets. happens to be about the standard Cathode ray tubes sell by the electric chair voltage. The 12-inch inch—the inch of screen diameter. job requires about 10,000 volts. One modified, simplified type of Apparatus properly designed and cathode ray tube had gotten very built can be perfectly safe, but the wide sale and application—the amateur couldn’t afford the special familiar greenish “Magic eye” tun- transformers, assorted high-voltage ing device is a small triode ampli- equipment, and the like. The re- fier combined with a simplified ceiver-type transformer sells for cathode ray tube. But the type of under five dollars because they're tube that has the greatest useful- made by the million; the cathode ness contains an accurately made ray transformers sell for twenty and aligned electron gun in a large dollars or so because they’re made glass tube shaped rather like an practically by hand on special order overgrown ice cream cone, ending —or were! in a flat, or near-flat end coated in- The cathode ray tube is coming ternally with a fluorescent material. into real use now—the war did it. Tlie smallest size commercially pro- Essentially, the cathode ray tube is duced before the war was a 1-inch a direct, visual indicating device miniature; the largest a 12-inch job which can show three different elec- CRT S a trical values simultaneously and in- If the horizontal deflection is con- stantaneously—if is quite capable trolled by a device which is con- of following frequencies from zero stantly shifting the transmitting fre- —DC—to 20,000,000 cycles or so.