Device Bares Vocal Chords
CONSISTING of an intricate maze of hidden mirrors in a long, slender metal tube, one end of which is inserted into the mouth far back toward the throat, an “auto-phonoscope” device enables voice teachers to peer at pupils’ vocal chords while they are in action. Tiny, but powerful, electric bulbs at the tip of the tube provide light within the pupils throat during the examination.

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Deadly Smoke Menace ATTACKED ON WIDE FRONT

Cities Unite in Concerted Thrive Against Air Laden with Health-Destroying Impurities

AWAKE at last to the menace of smoke as a destroyer of health and property, great cities of the United States have opened campaigns against it. Medical authorities now realize that an ever-increasing proportion of cases of respiratory diseases is directly traceable to smoke particles floating in city air. Their baneful effect does not end here; for, blanketing the sky, they form a curtain through which only a part of the ultraviolet rays can filter. Read the rest of this entry »

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New Marvels of Food Factories

PERMITTED to peep behind the scenes in a giant food plant, a housewife would envy the speed and exactness of the modern machines used in preparing and packing food. The variety of these error-proof automatic devices is almost endless. In bakeries, massive, yet delicately adjusted mixers weigh and sift flour and measure water, mixing enough dough for hundreds of loaves of bread in one batch and assuring uniform taste and texture. The baked loaves are brought into position before a rank of dancing hack-sawlike blades that slice them in a flash, more nearly even than the most skilful housewife could do. Huge disks, rotating under corrugated rollers, knead spaghetti dough to a uniform consistency. Read the rest of this entry »

A New Tractor From Your Old Car
EASY to BUILD…with SHAW Tractor Equipment
We Tell You How!
PRICES GREATLY REDUCED
Massive tractor wheels give firm footing on spongy soil
DOES ALL FARM WORK!
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TOPS from the TOY SHOPS

SANTA CLAUS may be getting ready for the hard job ahead, but it’s a cinch he’ll need a boost from the family pocketbook, to even come close to satisfying the youngsters’ hunger for toys that are new and different. American toy designers seem to have outdone themselves this year in an effort to make the job of finding the right thing for young Johnny or Suzy an easy one. In fact, from the hundreds of toys now available, we had a hard job picking a selection to show you here. There were so many good-looking, fascinating, educational (the-kind-with-the-fun-still-left-in-them) toys that we hated to leave any out. The Toy Guidance Council recommends most of these.
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Portable Tire X-Rayer Shows Nails and Cuts

AUTOMOBILE tires are X-rayed for hidden nails, bruises, and similar dangers by the novel portable apparatus pictured at the left. Introduced by Firestone engineers, the X-ray unit is rolled under a jacked-up wheel, and the tire is viewed section by section, just as a physician examines the body of a patient with a fluoroscope. In an experimental test of 2,000 automobile tires with the apparatus, experts discovered 2,049 nails and tacks, 2,099 pieces of glass, and 2,197 rocks and pebbles lodged in the tread or body.

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Can We Meet the Robot’s Threat?

How Automatic Weapons Are Changing Warfare

Crewless planes . . . mechanical brains that think faster than man . . . remote-controlled bombs with new, superpower explosives . . . vengeance-wreaking automatons designed for mass murder… guns that can’t miss … instruments that see through clouds and darkness —these new terrors imperil the peace of the future.

By ALDEN P. ARMAGNAC
Drawings by B. G. SEIELSTAD

WILL death-dealing automatons, sooner or later, imperil the lives of everyone? Long-secret war weapons, now brought into the open, raise the startling question. They see through clouds and the darkness of night, when human eyes are blind. Faster than a man can think, their mechanical brains perform intricate calculations and aim guns against swiftly moving targets. They blast objectives with a ton or more of high explosives from more than 150 miles away. Read the rest of this entry »