Issue: 19421001

Thursday, October 1, 1942
OCT. 1942
4
True
141
Thursday, December 25, 2014

Articles
cover
0_1
0_1
[no value]
[no value]
POPULAR SCIENCE MONTHLY
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0001.xml
advertisement
0_2
0_2
[no value]
[no value]
NATIONAL CARBON CO., INC.: EVEREADY
[no value]
NATIONAL CARBON CO., INC.
EVEREADY
[no value]
[no value]
PopularScience_19421001_0141_004_0002.xml
advertisement
1
1
[no value]
[no value]
NELSON DOUBLEDAY, INC.
[no value]
NELSON DOUBLEDAY, INC.
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0003.xml
advertisement
2
2,3
[no value]
[no value]
H. C. LEWIS
[no value]
H. C. LEWIS
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0004.xml
tableOfContents
4
4,6,8,10
[no value]
[no value]
POPULAR SCIENCE MONTHLY
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0005.xml
masthead
4
4
[no value]
[no value]
Masthead
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0006.xml
advertisement
5
5
[no value]
[no value]
B. F. Goodrich
[no value]
B. F. Goodrich
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0007.xml
advertisement
6
6
[no value]
[no value]
PEPSI-COLA
[no value]
PEPSI-COLA
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0008.xml
advertisement
7
7
[no value]
[no value]
INTERNATIONAL CORRESPONDENCE SCHOOLS
[no value]
INTERNATIONAL CORRESPONDENCE SCHOOLS
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0009.xml
advertisement
8
8
[no value]
[no value]
SOCONY-VACUUM: MOBILGLOSS
[no value]
SOCONY-VACUUM
MOBILGLOSS
[no value]
[no value]
PopularScience_19421001_0141_004_0010.xml
advertisement
9
9
[no value]
[no value]
NATIONAL RADIO INSTITUTE
[no value]
NATIONAL RADIO INSTITUTE
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0011.xml
advertisement
10
10
[no value]
[no value]
CHAMPION SPARK PLUG COMPANY
[no value]
CHAMPION SPARK PLUG COMPANY
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0012.xml
advertisement
11
11
[no value]
[no value]
U. S. ARMY
[no value]
U. S. ARMY
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0013.xml
advertisement
12
12
[no value]
[no value]
The ROSICRUCIANS
[no value]
The ROSICRUCIANS
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0014.xml
advertisement
13
13
[no value]
[no value]
CHARLES ATLAS, Dept.
[no value]
CHARLES ATLAS, Dept.
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0015.xml
advertisement
14
14
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0016.xml
advertisement
15
15
[no value]
[no value]
THE ELECTRIC AUTO-LITE COMPANY
[no value]
THE ELECTRIC AUTO-LITE COMPANY
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0017.xml
article
16
16,18,20
Readers Say:
[no value]
Readers Say:
That Japanese "Mystery Sub" Was No Mystery to P.S.M.
Veteran Sailmaker Recalls Work on Cup Defenders
He Found Only 1,968 Triangles in That Diagram of P.M.C.'s
Ink Blots Were Just Fun Before the Psychiatrists
He Sharpens His Razor Blades in an Ordinary Glass Tumbler
Suggests Protective Coloring for Military Planes
And Thank You, W.C.—But Once a Month Is Enough
Chicken Raiser Speaks Up for Steel from Tin Cans
[no value]
[no value]
[no value]
WHILE looking through the July 1934 issue of POPULAR SCIENCE Monthly, I was astonished to see a photograph of the “mystery” Japanese two-man submarine. At the time the Japs employed this type of submarine against our Navy at Pearl Harbor, our newspapers carried the story that this undersea craft was in naval warfare.
PopularScience_19421001_0141_004_0018.xml
advertisement
17
17
[no value]
[no value]
WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY
[no value]
WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0019.xml
advertisement
18
18
[no value]
[no value]
LASALLE EXTENSION UNIVERSITY
[no value]
LASALLE EXTENSION UNIVERSITY
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0020.xml
advertisement
19
19
[no value]
[no value]
NATIONAL SCHOOLS
[no value]
NATIONAL SCHOOLS
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0021.xml
advertisement
20
20
[no value]
[no value]
MOTOR BOOK DEPT.
[no value]
MOTOR BOOK DEPT.
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0022.xml
advertisement
21
21
[no value]
[no value]
AMERICAN SCHOOL
[no value]
AMERICAN SCHOOL
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0023.xml
article
22
22
[no value]
[no value]
Coming Next Month—
[no value]
[no value]
[no value]
[no value]
WHEN THE WAR IS OVER, all the wealth and effort that we have poured into the struggle will not have been shot away and destroyed. There will remain a backlog of expanded manufacturing facilities, new scientific discoveries, and improved methods that will make life better for all.
PopularScience_19421001_0141_004_0024.xml
advertisement
22
22
[no value]
[no value]
Remington
[no value]
Remington
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0025.xml
advertisement
23
23
[no value]
[no value]
PITMAN PUBLISHING CORPORATION
[no value]
PITMAN PUBLISHING CORPORATION
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0026.xml
advertisement
24
24
[no value]
[no value]
SPRAYBERRY ACADEMY OF RADIO
[no value]
SPRAYBERRY ACADEMY OF RADIO
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0027.xml
advertisement
24
24
[no value]
[no value]
Advertisement: Popular Science Monthly
[no value]
[no value]
Popular Science Monthly
[no value]
[no value]
PopularScience_19421001_0141_004_0028.xml
advertisement
25
25
[no value]
[no value]
THE MACMILLAN COMPANY
[no value]
THE MACMILLAN COMPANY
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0029.xml
advertisement
26
26
[no value]
[no value]
GENERAL ELECTRIC: G-E PHOTO DATA BOOK
[no value]
GENERAL ELECTRIC
G-E PHOTO DATA BOOK
[no value]
[no value]
PopularScience_19421001_0141_004_0030.xml
advertisement
26
26
[no value]
[no value]
INDIAN MOTOCYCLE CO.
[no value]
INDIAN MOTOCYCLE CO.
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0031.xml
advertisement
26
26
[no value]
[no value]
Advertisement: Popular Science Monthly
[no value]
[no value]
Popular Science Monthly
[no value]
[no value]
PopularScience_19421001_0141_004_0032.xml
advertisement
27
27
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0033.xml
advertisement
28
28
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0034.xml
advertisement
29
29
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0035.xml
advertisement
30
30
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0036.xml
advertisement
31
31
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0037.xml
advertisement
32
32
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0038.xml
advertisement
33
33
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0039.xml
advertisement
34
34
[no value]
[no value]
American School
[no value]
American School
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0040.xml
advertisement
34
34
[no value]
[no value]
WARNER ELECTRIC COMPANY
[no value]
WARNER ELECTRIC COMPANY
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0041.xml
advertisement
34
34
[no value]
[no value]
Advertisement: POPULAR SCIENCE
[no value]
[no value]
POPULAR SCIENCE
[no value]
[no value]
PopularScience_19421001_0141_004_0042.xml
advertisement
35
35
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0043.xml
advertisement
36
36
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0044.xml
advertisement
37
37
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0045.xml
advertisement
38
38
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0046.xml
advertisement
39
39
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0047.xml
advertisement
40
40,41,42,43,44,45,46,47
[no value]
[no value]
POPULAR SCIENCE Classified OPPORTUNITIES
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0048.xml
advertisement
47
47
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0049.xml
advertisement
48
48
[no value]
[no value]
Advertisement: PRINCE ALBERT
[no value]
[no value]
PRINCE ALBERT
[no value]
[no value]
PopularScience_19421001_0141_004_0050.xml
article
49
49,50,51
News
[no value]
Another First for the Electron Microscope
[no value]
[no value]
[no value]
[no value]
HOW help friendly, sick people tadpole-shaped get well has just viruses been revealed to the eye and the camera. Collectively, they are called “bacteriophage,” which medical men have theorized about but never before have seen in action.
PopularScience_19421001_0141_004_0051.xml
article
52
52,53
News
[no value]
Intrusion Tactics
LIKE UNINVITED GUESTS AT A PARTY, THE HAVOCS RUIN THE NAZIS' SHOW
[no value]
[no value]
[no value]
IT IS night over a German airport. Droning high in the darkness, out of the flak range of air-base defenses, and painted black as death, is a wicked, American-built light bomber which the British call the Havoc or the Boston, and Americans call the DB-7 or the Army A-20.
PopularScience_19421001_0141_004_0052.xml
article
54
54,55
News
[no value]
Spinning Big Bombs the Way a Potter Spins a Vase
[no value]
[no value]
[no value]
[no value]
LIKE moist clay taking shape under skilled fingers on a potter's wheel, tubes of white-hot seamless steel, with the uniform strength of solid forgings, are now spun in to casings for aerial bombs. Devised by engineers of a U. S. Steel Corporation subsidiary, this revolutionary process is turning out thousands of bombs in plants in the Pittsburgh area, and its originators are teaching their competitors how to use it.
PopularScience_19421001_0141_004_0053.xml
article
56
56,57,58,59,60
News
[no value]
AMERICA'S VEST-POCKET CANNON IS A Machine-Gun Destroyer
ACCURATE 60-MM. MORTAR THROWS DEADLY SHELLS INTO THE ENEMY'S LINES
[no value]
[no value]
HICKMAN POWELL
ONE of the most important elements in the increased fire power which our infantry uses against the Axis is the 60-millimeter mortar, a light, hand-carried cannon which tosses three-pound packages of TNT with deadly accuracy at ranges up to 2,000 yards.
PopularScience_19421001_0141_004_0054.xml
article
61
61
Facts and Ideas
[no value]
Third Dam Rises on the Colorado
[no value]
[no value]
[no value]
[no value]
TO HELP satisfy a demand for electric power in the Pacific Southwest which has already surpassed a record output, the mighty Colorado River will submit to a third harnessing. This new engineering feat, called Davis Dam, is a 338-foot high, 1,350foot long earth-and-rock-fill structure in western Arizona about halfway between Boulder Dam and the recently completed Parker Dam.
PopularScience_19421001_0141_004_0055.xml
article
62
62,63
News
[no value]
MOVIE CARTOONS SHOW HOW AN ANTITANK GUN WORKS
Walt Disney's Animated Art Quickly Teaches Soldiers Details of Caring for and Using Canada's MKI Rifle
[no value]
[no value]
[no value]
A TWO-REEL by the Walt moving Disney picture, studios as produced part of Mickey Mouse’s war effort, is being used with great success in training soldiers to operate the famous Canadian antitank rifle, the Boys MKI. Combining both live action and cartoon animation, the film reveals every important detail of setting up, camouflaging, aiming, and firing the gun, with some sequences repeated for emphasis.
PopularScience_19421001_0141_004_0056.xml
article
64
64,65,66,67,68,69,220,222
News
[no value]
Invention CAN WIN THE WAR
HERE ARE SOME HINTS FOR THE FREE-LANCE INVENTOR IN WARTIME
DON'T
DO
HAVE YOU AN IDEA THAT MIGHT HELP?
"Dry-Ice Gun" Harnesses Carbon Dioxide to Propel Bullets
[no value]
[no value]
[no value]
IN flushed THE summer with their of 1940 victories Goering’s in Norway, airmen, Belgium, Holland, and France, swept over Britain. There they were met and thrown back by some 3,000 R.A.F. flyers. Several factors played a decisive part in that historic defeat.
PopularScience_19421001_0141_004_0057.xml
article
70
70,71,72
News
[no value]
SHIPS FOR Our Air Commandos
[no value]
[no value]
[no value]
[no value]
A TRANSPORT glider capable of carrying nine fully equipped soldiers, the largest yet built in this country, has been developed by the Army Air Forces to aid in the intensive training of America’s Commandos of the Air, troops who will attack the enemy from behind his own lines.
PopularScience_19421001_0141_004_0058.xml
article
73
73
Inventions
[no value]
PLASTIC WATER PIPE
[no value]
[no value]
[no value]
[no value]
PIPE made of a new, noninflammable plastic now releases iron, copper, and other metals of strategic importance in wartime. Available in a range of sizes from half an inch to two inches, the plastic conduits are well suited for household water piping.
PopularScience_19421001_0141_004_0059.xml
article
74
74
Facts and Ideas
[no value]
"Welded" Wood Saves Metal in Fast Motor Torpedo Boats
[no value]
[no value]
[no value]
[no value]
FAST 30-ton motor torpedo boats, 70-ton rescue boats, and massive target boats made at a Canadian factory are being “welded” from wood by resin glue. Metal serves only for armament, engines, and fittings. Frames for the hull and wheelhouse consist of built-up wooden laminations of carefully chosen types of wood, bonded with the special glue.
PopularScience_19421001_0141_004_0060.xml
article
74
74
Aviation
[no value]
Sprayed Aluminum Protects Airplane Motors from Rust
[no value]
[no value]
[no value]
[no value]
PURE aluminum metal, sprayed in molten form upon cylinders of radial airplane motors, now protects them from corrosion due to landings and take-offs in salt water. Tests indicate advantages of this method over enamel protective coatings formerly used, and aluminumsprayed cylinders are reported used in increasing numbers on military aircraft.
PopularScience_19421001_0141_004_0061.xml
article
75
75
Inventions
[no value]
Mildewproofing for Cotton
[no value]
[no value]
[no value]
[no value]
BY MAKING cloth mildewdrop, thousands of dollars worth of awnings, sandbags, sails, and other cotton items are saved each year. Chemmists of the Department of Agriculture research center at Belleville, Me., have discovered several different methods for mildew cotton cloth—each method adapted to the pareticlair use it must serve.
PopularScience_19421001_0141_004_0062.xml
article
76
76,77
Facts and Ideas
[no value]
NEW GUNS AND TURRETS
STINGS FOR THE MOSQUITO FLEET
ON A FLYING FORTRESS
[no value]
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0063.xml
article
78
78
Aviation
[no value]
Self-Propelled Crane Can Cart Planes off Bombed Fields
[no value]
[no value]
[no value]
[no value]
PLANES shouldn’t be caught on the ground by an enemy raid on an airfield— but sometimes they are. Hence the U. S. Army Air Forces have developed a selfpropelled crane of giant size, capable of picking up a 30-ton load and trundling it away at 18 miles an hour.
PopularScience_19421001_0141_004_0064.xml
article
78
78
Inventions
[no value]
Freezer Shrinks Metal Parts for Engine Fittings
[no value]
[no value]
[no value]
[no value]
SHRINKING metal parts is made easy by a super-refrigerator, capable of maintaining a temperature of 120 degrees below zero. After being kept in its cylindrical chilling compartment, bearings and other inserted fittings may be slipped into place by hand, without application of force that might tend to strain and deform them.
PopularScience_19421001_0141_004_0065.xml
article
79
79
WHAT YOU CAN DO FOR VICTORY
[no value]
Evansville Mobilizes Skilled Home Craftsmen
SUCCESSFUL WPB EXPERIMENTAL ORGANIZATION IN INDIANA CITY SHOWS HOW SMALL-SHOP SUBCONTRACTORS CAN BE USED TO HELP NATION'S WAR EFFORT
[no value]
[no value]
ARTHUR GRAHAME
CO-OPERATING with manufacturing companies which are anxious to speed up their war production by subcontracting some of their work, the Evansville, Ind., field office of the War Production Board has completed a successful experimental organization of home craftsmen.
PopularScience_19421001_0141_004_0066.xml
article
80
80
Facts and Ideas
[no value]
Building Ships Below the Sea
[no value]
[no value]
[no value]
[no value]
AN ENTIRELY new method of prefabricated-ship construction has been devised by American companies engaged in building a “bridge of ships” to carry supplies to the fighting fronts. Instead of constructing a vessel on elevated ways and then sliding it into the sea, the shipbuilder now does the work in a hole and lets the water in.
PopularScience_19421001_0141_004_0067.xml
article
81
81
Aviation
[no value]
Trailer X-Rey spots Plane Damage
[no value]
[no value]
[no value]
[no value]
THE question of whether an airplane has developed structural weaknesses or sustained some invisible damage that makes it unsafe can now be answered on the flying field by means of a new mobile X-ray laboratory developed for the Lockheed Aircraft Corporation but available to the Army and Navy flying force everywhere.
PopularScience_19421001_0141_004_0068.xml
article
82
82,83,84,85,86,87,88,89,223,224,226
News
[no value]
OUR WARPLANES GROW STRONGER
THE DESIGN ENGINEER NEVER FINISHES HIS JOB OF COMBINING MASS PRODUCTION WITH GETTING BETTER PERFORMANCE IN EVERY TYPE OF PLANE
[no value]
[no value]
CARL DREHER
SUPPOSE someone told you of a military airplane which was a marvel because it was streamlined inside? Offhand it doesn’t seem to make sense. The purpose of streamlining is to reduce drag when air streams over a moving surface, and one naturally associates it with the wings, fuselage, and other visible parts of an aircraft.
PopularScience_19421001_0141_004_0069.xml
article
90
90,91,92,93,94,95
News
[no value]
Putting Blinders on the Axis
INDUSTRIAL CAMOUFLAGE HAMPERS ACCURATE BOMBING RAIDS
EFFECT OF BOMBINGS
[no value]
[no value]
[no value]
INDUSTRIAL camouflage is the recapture of the light, shadow, and contours of nature which have been destroyed by the industrialist’s passion for efficiency and his conviction that a straight line is the shortest distance between two points.
PopularScience_19421001_0141_004_0070.xml
article
96
96,97
News
[no value]
SPECIALIST CORPS FORMED
Army Seeks Highly Trained Men to Free Others for Fighting
MEN WANTED:
ARMY SPECIALIST CORPS PAY RATES
[no value]
[no value]
[no value]
POSSIBLY you are a metallurgical engineer, a business man skilled in personnel management, a transportation expert, or perhaps you are trained and experienced in any of a number of other professions. If so, the chances are the Army may have a place for you in its recently formed Specialist Corps.
PopularScience_19421001_0141_004_0071.xml
article
98
98,99,100
Aviation
[no value]
How You Can Learn in Five Minutes to Spot Planes
CHARACTERISTICS OF U. S. PLANES
[no value]
[no value]
[no value]
ONLY constant training and practice will enable an observer definitely to classify airplanes, partly because the speed and great altitudes at which they fly usually make markings invisible. But five minutes’ study of a few simple rules should make it possible for almost anyone to identify aircraft by type, and as a rule that is sufficient for all practical purposes.
PopularScience_19421001_0141_004_0072.xml
article
101
101,102,103,104,105
News
[no value]
Largest of the Automatics
IT'S THE NEWEST THING IN AMERICAN ANTIAIRCRAFT DEFENSE-A GUN THAT AIMS ITSELF AND HITS HARD. THERE MAY BE ONE IN YOUR OWN BACK YARD, GUARDING SOME VITAL AREA
DIRECTOR - AIMED FIRE
MANUALLY AIMED FIRE
[no value]
[no value]
JOHN WALKER
SLANTING upward from carefully concealed positions spotted around our seacoast cities and industrial areas, sleek gun barrels with odd flared muzzles rake the sky. Around the guns, artillerymen stand always at the alert, ready to blast any enemy plane that may appear.
PopularScience_19421001_0141_004_0073.xml
article
106
106,107
Facts and Ideas
[no value]
Plant Cells Swap Protoplasm
AMAZING PHOTOS SHOWING A FLOW OF LIFE STREAM IN DYE-INJECTED LIVING BLOSSOMS PROVE DISPUTED BIOLOGICAL FACT
[no value]
[no value]
[no value]
WITH the aid of a high-power microscope and a lapse-time camera, Dr. Arthur C. Pillsbury, a botanist of Berkeley, Calif., has been able to convince scientists that protoplasm actually passes from one cell to another in plant life—a fact that has been disputed in botanical circles.
PopularScience_19421001_0141_004_0074.xml
article
108
108,109,110,111,112
News
[no value]
Phosphorus...
EXPANDED PRODUCTION TO PAY REWARD IN PEACE
PHOSPHORUS-MAKING CHARTED FROM ORE TO PRODUCT
[no value]
[no value]
ALDEN P. ARMAGNAC
HAVE you noticed, lately, how the striking surface of your pack of safety matches has shrunk? At the request of the War Production Board, manufacturers have trimmed the width of the dark reddish-brown strip, which contains the phosphorus that lights the match.
PopularScience_19421001_0141_004_0075.xml
article
113
113
Un-Natural History
[no value]
Un-Natural History
[no value]
[no value]
[no value]
Gus Mager
[no value]
PopularScience_19421001_0141_004_0076.xml
article
114
114,115,116,117,118,119
[no value]
[no value]
Navigators in the Making
Clear Heads and Mathematical Skill Are Needed for Guiding Big Bombers to Their Targets
[no value]
[no value]
HERBERT ASBURY
HEADED out to sea for a final smash at a Japanese fleet which had already been badly battered during the first phase of the Battle of Midway Island, the pilot of a Flying Fortress received orders to turn aside and attack another powerful Jape force approaching the American base from a different direction.
PopularScience_19421001_0141_004_0077.xml
article
120
120
Inventions
[no value]
new Tools
[no value]
[no value]
[no value]
[no value]
HEAVY-DUTY METAL CUTTER. A “curled-chip” saw, recently developed, is said to make faster and smoother cuts and eliminate the jamming of metal chips. Unlike the conventional angular-tooth saw, which telescopes chips against the cutting face of metal, the new teeth get under the chip and curl it up like a clock spring before it is ejected.
PopularScience_19421001_0141_004_0078.xml
article
121
121
Inventions
[no value]
DEHYDRATED MEATS
[no value]
[no value]
[no value]
[no value]
AT THE Department of Agriculture research center in Belleville, MD., scientists have recently developed an expertmental dehydration process which removes more than 90 percent of the water from beef and pork. Since water is about 75 percent of the weight of these meats in their natural state, the dehydrated product promises needed conservation in wartime shipments.
PopularScience_19421001_0141_004_0079.xml
article
122
122
Facts and Ideas
[no value]
A Home in A Box
[no value]
[no value]
[no value]
[no value]
TO THE long list of things which come in packages can now be added a home. Interior decorators have designed and put on the market a “Home-in-a-Box” which includes almost all of the furnishings of a living room, packed into a container formed by several of the larger pieces.
PopularScience_19421001_0141_004_0080.xml
article
123
123
Aviation
[no value]
EARS HELP EYES SPOT PLANES
[no value]
[no value]
[no value]
[no value]
THE ear can help the eye in spotting planes. In a fog, or at night, it can even replace sight to tell a plane’s approximate position, direction, and height. But the ear is not too dependable unless you understand some of the tricks that sound waves may play on it.
PopularScience_19421001_0141_004_0081.xml
article
124
124,125,126,127
News
[no value]
Tempting Insects With Poison
Laboratory Workers Concoct Appetizing but Fatal Food for Destructive Pests of Farm and Garden
[no value]
[no value]
BRUCE ALLEN
THE theory that an insect poison should be so tasty and appetizing that a bug will smack his lips and go for it in preference to a fruit or vegetable, forms the basis of important tests now under way at the Department of Agriculture Research Center at Beltsville, Md.
PopularScience_19421001_0141_004_0082.xml
article
128
128
Inventions
[no value]
Electricity Analyzes Chemicals
[no value]
[no value]
[no value]
[no value]
TINY drops of mercury falling into a little beaker provide the working mechanism for a recently developed testing instrument with which chemical analyses that usually would require hours may be accomplished in a few minutes. The operation of the Fisher Elecdropode, as the device is called, is based upon the fact that when a gradually increased electric voltage is applied between electrodes to solutions of different chemicals, each chemical makes its presence known by an increase in current flowing between the electrodes at some definite voltage.
PopularScience_19421001_0141_004_0083.xml
article
129
129,130,131,132,133
HOW IT IS DONE
[no value]
STAINED GLASS MAKING
American Artists Preserve a Medieval Art and Promise to Retain World Leadership
[no value]
[no value]
AL LANEY
WHEN, back in the year 1200 or thereabouts, they were building Chartres Cathedral, in which Gothic architecture and its decorative hand-Working maiden, stained glass, reached their modern sublime peak, the glass-makers assembled on the spot to work in close co-operation with the architects.
PopularScience_19421001_0141_004_0084.xml
article
134
134,135,136,137
AUTOS
[no value]
How to Fix a Flat
IF YOU HAVE NO SPARE, YOU'D BETTER BE READY
EQUIPMENT NEEDED TO REPAIR MOST FLATS ON THE ROAD
Even a Badly Injured Inner Tube Can Be Fully Repaired
[no value]
[no value]
SCHUYLER VAN DUYNE
LEGIONS of motorists are driving their cars without spare tires and probably very few of them ever repaired a tire on the road. Few have even so much as a tire iron in their cars, an awful lot of jacks don’t work, and, lacking a tire pump, a flat tire is an utterly hopeless catastrophe anyway.
PopularScience_19421001_0141_004_0085.xml
article
138
138,139
Automobiles
[no value]
PRACTICAL HINTS FOR CAR OWNERS
[no value]
[no value]
[no value]
[no value]
1 LEG PADS FOR POOCHES that like to ride with their forepaws on the window ledge of the car door will make a dog's life pleasanter and also protect the car finish. Slit a length of 1" mailing tube and place it over the glass as shown. Raise the window slightly above the sill so the dog's toe nails will not contact the paint.
PopularScience_19421001_0141_004_0086.xml
article
140
140
Automobiles
[no value]
Auto Ideas
[no value]
[no value]
[no value]
[no value]
BRANDED TIRES, with brand markings burned into the tire sidewalls, are urged by one tire manufacturer as a safeguard against tire theft, and motorists getting service from the company’s dealers get their tires branded free of charge. The brands, put on by an electric tool, correspond to the license number of the owner’s vehicle, simplifying tracing through motorvehicle registration bureaus.
PopularScience_19421001_0141_004_0087.xml
article
141
141,142,143,218
Automobiles
[no value]
GUS brightens 'em up
The Model Garage proprietor knows his cars and customers well enough to tell in a flash which one—car or customer— needs some careful doctoring
GUS SAYS:
[no value]
[no value]
MARTIN BUNN
IT WAS a warm evening. Along about nine o'clock Gus Wilson, who was working what in prewar days he would have called over time but now considers normal hours, lighted his pipe and stepped to the open shop door to breathe in a few lungfuls of fresh air.
PopularScience_19421001_0141_004_0088.xml
article
144
144
Home and Workshop
[no value]
PHOTOGRAPHY
[no value]
[no value]
[no value]
[no value]
CHILDREN MAKE EXCELLENT PHOTOGRAPHS if you catch them posing naturally. Above and on the facing page, the props are simple and the little subjects are engaged in everyday amusements. Study the two pictures, then turn to the accompanying article by a Hollywood photographer of children and see how easy it is to get results you can be proud of
PopularScience_19421001_0141_004_0089.xml
article
145
145,146,147,148
[no value]
[no value]
PHOTOGRAPHING Children
[no value]
[no value]
[no value]
CHARLES LAMONT
HOW can you get a cute snapshot or movie sequence of the baby? How can you trick youngsters into posing or following certain desired action ? What props help make pictures interesting? From my experience in directing movie youngsters, through diaper-to teen-age, in a score of feature pictures, I recommend that you follow one cardinal principle: no matter what pictures you desire, let your young subject be perfectly natural.
PopularScience_19421001_0141_004_0090.xml
article
149
149
Photography
[no value]
Processing Movie Film at Home WITH LOW-COST EQUIPMENT
[no value]
[no value]
[no value]
S. Y. CALDWELL
THIS film-processing outfit was made from a 3-gal. butter crock and a 3-gal. tin milk cooler costing together less than a dollar. The reel holds 27' of 16-mm. film. Four rows of 1" wire brads driven through from the inside of the can are secured with a drop of solder over the head of each brad.
PopularScience_19421001_0141_004_0091.xml
article
150
150
Photography
[no value]
FOR CAMERA USERS
[no value]
[no value]
[no value]
[no value]
THIS ALL-PLASTIC film viewer takes standard color slides or 35-mm. film. It has a lens that affords considerable magnification, and a detachable diffusing window. The curved top of the case permits the corners of slides to project, making removal easy. Slides of any thickness can be inserted, whether in paper, glass, or metal mounts, yet no focusing is required for viewing either these or film.
PopularScience_19421001_0141_004_0092.xml
article
151
151
Aviation
[no value]
Built-in Motor Cools Heavy-Duty Projector for Glass Slides
[no value]
[no value]
[no value]
[no value]
FORCED-AIR cooling provided by a built-in motor is one feature of a new stereopticon that shows standard glass slides. This makes it possible to use projection lamps of from 250 to 1,000 watts. A special socket aligns any lamp and allows for adjustment of the beam to suit different lenses.
PopularScience_19421001_0141_004_0093.xml
article
151
151
Aviation
[no value]
Bobby Pins Keep 35-mm. Film Straight While It Dries
[no value]
[no value]
[no value]
F. W. TABER
WHEN a strip of 35mm. film is hung up with a weight to keep it from rolling up while it dries, it often takes on a curl from edge to edge. One way to overcome the trouble is to clip a bobby pin across between two frames every five or six inches. The film should first be swabbed off in the usual way to prevent water streaks.
PopularScience_19421001_0141_004_0094.xml
article
151
151
[no value]
[no value]
Wetting Agent Cleans Lenses Without Hard Rubbing
[no value]
[no value]
[no value]
KENNETH MURRAY
AUXILIARY lenses and filters can be cleaned without danger of scratching by the use of a wetting agent such as is added to developers. Moisten a soft cloth or a piece of lens-cleaning tissue with it, swab the lens carefully, then rinse and dry it off very gently.
PopularScience_19421001_0141_004_0095.xml
article
151
151
Aviation
[no value]
Slotted Viewing Boards Aid in Editing of Color Slides
[no value]
[no value]
[no value]
WILLIAM L. MORGAN
EASILY made viewing boards of the type illustrated enable a large assortment of color slides to be viewed and edited with a minimum of handling. Short ends of wide boards or other scrap lumber can be used in making them. Each board is 1" by 12" by 18".
PopularScience_19421001_0141_004_0096.xml
article
152
152
[no value]
[no value]
HOME AND WORKSHOP
[no value]
[no value]
[no value]
[no value]
Priorities won't stop you from building this all-wood game for lawn or basement
PopularScience_19421001_0141_004_0097.xml
article
HW257
HW257,HW258,HW259,HW260
Home and Workshop
[no value]
Roll-a-Disk
A TWO-IN-ONE LAWN GAME ANYONE CAN MAKE
HOW MUCH LUMBER TO ORDER
Steel Wool Kept Under Water So That It Won't Rust
[no value]
[no value]
Charles
Bertram Brownold
HERE is a new lawn bowling game, made entirely of wood, that provides exciting sport and good exercise for grown-ups as well as young folks. Instead of balls, fairly heavy disks wood are rolled, or bowled, and the game played in two different ways.
PopularScience_19421001_0141_004_0098.xml
article
HW261
HW261
New Shop Ideas
[no value]
NEW SHOP IDEAS
[no value]
[no value]
[no value]
[no value]
SMALL PARTS BRAZED EASILY. Delicate welding on small electrical or radio parts and jewelry can be done more easily with an electrode consisting of a length of pencil graphite. This piece of ordinary No. 1 or 2 lead pencil, sharply pointed at the working end, will reach into places not accessible to even a small carbon.
PopularScience_19421001_0141_004_0099.xml
article
HW262
HW262,HW263
Home Building
[no value]
Cornice Boxes AND CURTAIN DOCKETS
Oil Applied to Tools with Dauber
[no value]
[no value]
Joseph Aronson
THE handy man around the house sooner or later finds himself involved in interior-decoration problems, particularly those involved in hanging draperies. This may be his opportunity to display an unexpected knowledge of the design basis of draperies and curtains.
PopularScience_19421001_0141_004_0100.xml
article
HW264
HW264,HW265
Craftwork
[no value]
THIS ATTRACTIVE BIRD FEEDER
BRINGS THEM RIGHT UP TO YOUR WINDOW
[no value]
[no value]
W. A. Conway
A GREAT deal of pleasure is to be had from observing birds that are attracted to the house by a feeder of the type illustrated. It holds several pounds of seeds, which are automatically dispensed. This particular design was worked out for use with a house of English architecture, but the style can readily be modified to suit other conditions.
PopularScience_19421001_0141_004_0101.xml
article
HW266
HW266,HW267
Outdoors
[no value]
Bicycle Racks
ELEVEN FOR ATTRACTIVE DESIGNS EVERY PURPOSE
[no value]
[no value]
[no value]
NOW that the bicycle has returned as a major medium of transportation, a new parking problem arises. Many readers have asked for plans for bicycle stands. Ernest Stevens, a Washington, D. C., architect, offers a timely answer with eleven designs of wood bicycle racks ranging from simple to elaborate.
PopularScience_19421001_0141_004_0102.xml
article
HW268
HW268,HW269
Miscellaneous
[no value]
CIVILIAN-DEFENSE +Litters
[no value]
[no value]
[no value]
COL. F. T. CHAMBERLIN
FOR the past year it has been my privilege to give instruction in first aid to the Red Cross Motor Corps of Lake Charles, La., a group of women organized for rendering assistance in the event of a local or national emergency. Seeing that this organization had great need of some type of litter, the writer started a little “jackleg” experimenting to devise a light, strong, practical one that might be easily made at little or no cost, and that would collapse to occupy little space in the family jalopy, where the latter is still on the hoof.
PopularScience_19421001_0141_004_0103.xml
article
HW269
HW269
Miscellaneous
[no value]
Roomy First-Aid Cabinet Constructed with Self-Locking Door
[no value]
[no value]
[no value]
[no value]
NO METAL, fittings are used on this firstaid cabinet, which is suitable for airraid posts, public buildings, schools, and homes. The door drops into place in such a way that children cannot readily open it. Dimensions are omitted from the drawing, since the cabinet can be built in any desired size.
PopularScience_19421001_0141_004_0104.xml
article
HW270
HW270
Electrical
[no value]
Old Electrical Conduit Welded into Durable Lathe Bench
[no value]
[no value]
[no value]
E. S. HARRIS
THIN-WALL conduit of the 1" size, either new or used, makes a neat, durable stand for a bench lathe when welded together, as shown in the accompanying photographs. It affords ample leg room for working close to the machine, it cannot accumulate chips like a bench, and is easy to sweep under.
PopularScience_19421001_0141_004_0105.xml
article
HW270
HW270
New Shop Ideas
[no value]
Acid and Sal Ammoniac Flux for Soldering Stainless Steel
[no value]
[no value]
[no value]
FLOYD KOWALAK
STAINLESS steel is often difficult to solder without a special flux. As an alternative, common cut acid may be applied to the seam and a few grains of powdered ammonium chloride (sal ammoniac) sprinkled on the acid to make the solder flow freely.
PopularScience_19421001_0141_004_0106.xml
article
HW270
HW270
New Shop Ideas
[no value]
ELECTROPLATING WITH CADMIUM
[no value]
[no value]
[no value]
[no value]
Cadmium is plated from an alkaline solution. A typical formula is prepared by dissolving 11 oz. sodium cyanide (POISON) in 1 gal. water, and adding 5 oz. cadmium oxide, made into a paste with water. When dissolved, add ½ oz. dextrine, which will improve the smoothness of the deposit.
PopularScience_19421001_0141_004_0107.xml
article
HW271
HW271
Electrical
[no value]
What's Wrong?
NINE ELECTRICAL ERRORS FOR YOU TO DISCOVER
[no value]
[no value]
[no value]
HOW good are you at electrical trouble shooting? Here are five problems professional electricians might encounter. Should you connect a bell transformer as in Fig. 1, you’d be in for trouble. There are two mistakes. Can you point out two errors in the fluorescent-lamp hookup in Fig. 2?
PopularScience_19421001_0141_004_0108.xml
article
HW271
HW271
Electrical
[no value]
Solution for Removing Enamel from Fine Magnet Wire
[no value]
[no value]
[no value]
G. E. H
WHEN the enamel has to be removed from very fine magnet wire to permit connections to be made or soldering to be done, it is sometimes impractical to use a knife or even fine sandpaper or steel wool, either because of the delicacy of the wire or the position in which it is located.
PopularScience_19421001_0141_004_0109.xml
article
HW272
HW272,HW273
Home Building
[no value]
IDEAS for HOME OWNERS
[no value]
[no value]
[no value]
[no value]
PLASTIC-COATED WALL PANELS, available in the three designs shown at the right and in ten colors, have been developed for new home construction and for remodeling. The sheets, coming in sizes up to 4' by 8', are prefinished with the plastic surface permanently bonded to the base by treatment with heat.
PopularScience_19421001_0141_004_0110.xml
article
HW274
HW274,HW275
Miscellaneous
[no value]
AUTOMATIC Air-Rifle Target
LIST OF MATERIALS
[no value]
[no value]
C. ELMER BLACK
AN AIR rifle and this automatic action target, which runs continuously about five minutes at one setting, will guarantee hours of fun and some lively, competitive target practice. One ball at a time runs down the zigzag course and, whether it is shot off or rolls all the way to the bottom, automatically starts another.
PopularScience_19421001_0141_004_0111.xml
article
HW276
HW276,HW277,HW278,HW279
Home and Workshop
[no value]
Straight Work ON THE Spindle Shaper
BAND SAW IS ADDED TO JAACKS' SHOP
[no value]
[no value]
EDWIN M. LOVE
FURNITURE built at home with hand tools usually lacks the moldings that disanguish the products of professional shops. While it is true that the essence of good design is fine structural proportions, suitable ornament does have its place.
PopularScience_19421001_0141_004_0112.xml
article
HW278
HW278
Woodworkingo
[no value]
Constructing a Drawing Board Is Good Shaper Project
[no value]
[no value]
[no value]
E. M. L.
CHOOSE flat, well-seasoned boards of basswood, white pine, or sugar pine. Arrange them edge to edge with heart and sap sides alternately up and the grain running in the same direction. Mark the paired joints and tongue and groove them. Plane flat and square the ends.
PopularScience_19421001_0141_004_0113.xml
article
HW280
HW280,HW281
MACHINISTS FOR WAR WORK
[no value]
ThreadCutting Stop for Lathe
[no value]
[no value]
[no value]
[no value]
THE task of cutting screw threads in the lathe can be speeded up, and smoother, more accurate work done, with the easily made thread-cutting stop shown in Fig. 1, which is also useful for turning identical diameters. In cutting external threads, the stop is mounted on the cross-slide dovetail, the tool point is set so that it just touches the work, and the adjusting screw on the stop is brought up tight against the cross slide.
PopularScience_19421001_0141_004_0114.xml
article
HW281
HW281,HW282
New Shop Ideas
[no value]
BORING-BAR HOLDER
[no value]
[no value]
[no value]
C.W.W.
THE chief problem in boring deep holes on the lathe is that of tool rigidity. Because of its long overhang, the tool must be well supported and the largest boring bar possible used. With the holder shown in Figs. 1 and 2, the bar is quickly adjusted to extend just far enough to reach through the work.
PopularScience_19421001_0141_004_0115.xml
article
HW282
HW282
New Shop Ideas
[no value]
How to Remelt Aluminum Chips Without Excessive Waste
[no value]
[no value]
[no value]
C. NEMOSECK
IN A SHOP where small aluminum castings are made and machined, the chips are usually considered waste because they burn if an attempt is made to remelt them. However, if solid aluminum is melted, poured over the chips, and mixed with them thoroughly, the whole mass can be put in the furnace and remelted with little waste.
PopularScience_19421001_0141_004_0116.xml
article
HW282
HW282
New Shop Ideas
[no value]
Lead Purified for Casting
[no value]
[no value]
[no value]
FRED M. WOLLF
WHEN melting lead that is to be cast in molds, add to the crucible a small amount of pulverized carbon. The carbon elements of old dry cells may be saved for this purpose. Any impurities in the lead settle to the bottom of the pot and are left during the pouring.
PopularScience_19421001_0141_004_0117.xml
article
HW282
HW282
[no value]
[no value]
Countersinking Sheet Metal
[no value]
[no value]
[no value]
C. A. CHISHOLM
WHERE heavy flathead bolts are used on light sheet metal up to No. 12 gauge, there is some objection to using a countersink because it weakens the metal at the bolthead. If the work is comparatively rough, an alternative is to place a large nut under it, slip the bolt through the hole, and strike the bolt a couple of sharp raps with a hammer.
PopularScience_19421001_0141_004_0118.xml
article
HW283
HW283
New Shop Ideas
[no value]
Motorizing an Old Grindstone
[no value]
[no value]
[no value]
W. F. MESSENGER
OLD-FASHIONED wet grindstones are an efficient shop help when modernized like the one above, which is mounted on a wall shelf deep enough to afford space for a jackshaft. The drive is from a 2" pulley on the motor to a 12" one on the jackshaft, then from a 4" pulley to a 10" one on the grindstone shaft. A sheet-metal hood surrounding the wheel holds water.
PopularScience_19421001_0141_004_0119.xml
article
HW283
HW283
New Shop Ideas
[no value]
Countershaft Adapts Band Saw for Wood or Metal Cutting
[no value]
[no value]
[no value]
[no value]
WHERE a band saw is to be used for metal cutting, the single-countershaft setup below not only provides extreme speed reduction without the use of excessively large pulleys, but makes it possible to shift back to high speed for woodworking by removing the outermost belt and inserting a locking screw.
PopularScience_19421001_0141_004_0120.xml
article
HW283
HW283
Shop Data
[no value]
TOOL TRAVEL IN THREAD CUTTING
[no value]
[no value]
[no value]
[no value]
The travel of a tool in cutting threads may be calculated by reference to the accompanying diagram. A threading tool fed at 30 deg. to the work must travel along the line TT. All 60-deg. threads are based upon an equilateral triangle, the side P being equal to the pitch and designated as unity.
PopularScience_19421001_0141_004_0121.xml
article
HW284
HW284,HW285
Craftwork
[no value]
Soldier Sailor and Marine
JIGSAWED LAWN FIGURES OF MEN WE ADMIRE IN OUR ARMED FORCES
[no value]
[no value]
Juan Oliver
APPROPRIATE to the American home are these up-to-the-minute lawn ornaments, a standing salute to our armed forces. They were designed to represent faithfully the marine dress uniform, the navy undress uniform, and the army service uniform.
PopularScience_19421001_0141_004_0122.xml
article
HW286
HW286,HW287
Miscellaneous
[no value]
Aquarium Tips
[no value]
[no value]
[no value]
LOUIS HOCHMAN
KEEPING an aquarium is an interesting hobby, but it requires a certain amount of regular care and attention. Some problems of the beginner can be simplified by using the methods illustrated. After cleaning out a fish tank, the nuisance of carrying bottles of water back and forth to fill it can be avoided by filling a large pot with water, setting it on the edge of the aquarium, or alongside on a suitably raised platform, and siphoning the water through a narrow rubber tube.
PopularScience_19421001_0141_004_0123.xml
article
HW288
HW288,HW289,HW290,HW291
New Shop Ideas
[no value]
High-Lighting Machines with COLOR
TWO-TONE PAINT FINISH REDUCES FATIGUE AND PREVENTS ACCIDENTS
[no value]
[no value]
Walter E. Burton
ONCE I knocked a sizable triangle of skin off my knuckle by getting too chummy with a whirling lathe dog. Then I nicked a piece out of the lathe carriage by running it too close to the same dog. But I don’t think that dog is going to bite so much in the future, for I have muzzled it with a coat of paint.
PopularScience_19421001_0141_004_0124.xml
article
HW292
HW292,HW293,HW294
Craftwork
[no value]
Working Time: Two Evenings
NOVEL MATERIAL-SAVING PROJECTS DESIGNED FOR POPULAR SCIENCE
[no value]
[no value]
ERNEST R. DEWALT
PICNIC KIT. This portable luncheon case, which when closed is only 4" by 12" by 18", can be readily converted into a picnic table to keep the food off the ground, or above the ever-present sand, should the picnickers find themselves at the beach.
PopularScience_19421001_0141_004_0125.xml
article
HW295
HW295
New Shop Ideas
[no value]
Twin Tool Posts Speed Production of Small Screws on Lathe
[no value]
[no value]
[no value]
WARREN I. FILLMORE
HAVING several hundred shouldered screws to turn out on my lathe, I found the work could be speeded up by the use of two tool posts in the slot of the compound rest. The extra tool post was made in the shop. I turned the compound rest with the slot almost at right angles to the spindle, so that one tool post was in front of the work and the other behind.
PopularScience_19421001_0141_004_0126.xml
article
HW295
HW295
[no value]
[no value]
Narrow-Edged Tools Sharpened on Side of Oilstone
[no value]
[no value]
[no value]
C. E. LIMBERG
MANY a good sharpening stone has been ruined by using its wide faces for whetting small tools. This eventually cuts grooves into these surfaces, which are then useless for sharpening wider tools. To avoid spoiling a stone in this way, set it on edge and sharpen narrow tools on a side surface, as shown above.
PopularScience_19421001_0141_004_0127.xml
article
HW295
HW295
Woodworkingo
[no value]
Wide Blade Used in Jig Saw for Cutting Thick Stock
[no value]
[no value]
[no value]
CARL W. BERTSCH
SOME heavy-duty scroll saws will cut stock as thick as 4½" if a 7" fragment of band-saw blade is used in place of an ordinary jig-saw blade. Grind off the teeth for ½" from each end as shown at the right. Clamp the blade in the V-notch of the lower chuck, and in the usual manner in the upper chuck.
PopularScience_19421001_0141_004_0128.xml
article
HW296
HW296,HW297,HW298
Craftwork
[no value]
Miniature Models
CRAFTSMEN SHOW SKILL IN MAKING TINY TOOLS
[no value]
[no value]
[no value]
MINIATURES of any kind have a fascination all their own. Making tiny mechanical reproductions often calls into play the utmost skill, patience, and ingenuity of a good craftsman, but anybody who likes to work with tools can build miniatures of some kind.
PopularScience_19421001_0141_004_0129.xml
article
HW298
HW298
Shop Data
[no value]
DYEING LEATHER
[no value]
[no value]
[no value]
[no value]
Dyes for leather may be water stains, oil stains, acids and oxides, spirit stains, and waterproof drawing inks. The amateur must be very careful if acids and oxides are used since they will burn the leather and cause it to crack if used in too strong solution.
PopularScience_19421001_0141_004_0130.xml
article
HW299
HW299
New Shop Ideas
[no value]
Formed Threading Tool Ground from Auto Tappet Roller
[no value]
[no value]
[no value]
B. N.
THIS homemade formed threading tool can be resharpened quickly, yet always cuts the correct thread angle. The cutter is ground from a hardened roller found on the tappet rods of some old automobiles; such a roller can be had for a few cents at most auto-wrecking yards.
PopularScience_19421001_0141_004_0131.xml
article
HW299
HW299
Woodworkingo
[no value]
Guides Align Work on Shaper
[no value]
[no value]
[no value]
XURY R. SETTLE
SETTING up a wood shaper as at the left will enable you to reduce any number of pieces to uniform width. The work is jointed on one edge and sawed 1/16" oversize. Clamp on the shaper table at the required distance from the cutter a piece of stock with one jointed edge.
PopularScience_19421001_0141_004_0132.xml
article
HW300
HW300,HW301
Electrical
[no value]
KEEPING THE HOME SHIPSHAPE
[no value]
[no value]
[no value]
[no value]
An old-style drophead sewing machine that is used infrequently can be concealed by transforming it into a vanity table for that extra bedroom. Fit to it a plywood top with a low ornamental back and a draped cloth skirt. Battens all around fit into molding rabbets or otherwise hold the top, which can be lifted off when sewing is to be done Strips of absorbent cotton wrapped around the wrists while walls and woodwork are being washed will catch annoying trickles of water before they roll down the arms.
PopularScience_19421001_0141_004_0133.xml
article
HW302
HW302
Woodworkingo
[no value]
TAKE-ALONG Baby Bed
[no value]
[no value]
[no value]
HELEN BRIDGE POHLMAN
A YOUNG Marine officer designed this portable bed, which solved the problem of providing a sleeping place for his baby in hotel rooms, furnished apartments, or at the homes of friends. It is light, inexpensive, and can be knocked down or assembled in a few minutes.
PopularScience_19421001_0141_004_0134.xml
article
HW303
HW303
Craftwork
[no value]
Two-Tone Wooden Whistle Imitates Locomotive
[no value]
[no value]
[no value]
B. N.
IN A VERY few minutes anyone can make this two-toned whistle, which imitates those on locomotives. Children are sure to like it. In a wooden block ⅞" by 1½" by 3½" bore two holes lengthwise with a 7/16" bit as shown in the drawing. Bore a 5/16" hole in the top ⅝" from the end to meet each of these as shown.
PopularScience_19421001_0141_004_0135.xml
article
HW303
HW303
New Shop Ideas
[no value]
Guard Keeps Emery Wheel Free of Oil
[no value]
[no value]
[no value]
X. S.
AFTER oil leaking from the bearings had thoroughly soaked one emery wheel on a hand grinder carried about in a tool kit, this annoyance was ended by mounting an arbor guard on it. A metal pillbox cover just big enough to clear the bearing was drilled to fit over the mandrel and against the shoulder, and the collar and wheel were then replaced as usual.
PopularScience_19421001_0141_004_0136.xml
article
HW303
HW303
[no value]
[no value]
Magnifier Used on Pantograph to Assure Accurate Tracing
[no value]
[no value]
[no value]
JAMES N. LARSON.
WHEN an ordinary pantograph is used, a small magnifying glass fastened directly over the pointer is a real help in tracing the drawing to be enlarged or reduced by enabling the draftsman to see more clearly the lines he is following. The magnifier is placed as shown in the accompanying drawing, and the handle bound firmly to the adjusting nut of the tracer with a rubber band.
PopularScience_19421001_0141_004_0137.xml
article
HW304
HW304,HW305
Craftwork
[no value]
MODEL-RAILWAY SWITCHWORK
1. THE FROG
[no value]
[no value]
DAVID MARSHALL
IN FIG. 1 we have a single-track junction, or what is known, technically, as a turnout. Within this are two principal structures, a switch and a frog. The switch is merely the movable element; it comprises only the points (X and Y), plus the tiebars that link the points to each other.
PopularScience_19421001_0141_004_0138.xml
article
HW306
HW306
Craftwork
[no value]
Deep-Sea Diver
OPERATES ON DRY ICE
[no value]
[no value]
Louis NICOLOSI
WHEN Diver Dan is at work, children —and grownups too—watch spellbound. This robotlike figure sinks into the water, remains out of sight for a time, and mysteriously emerges, only to repeat the performance a few seconds later. “How does he do it?”
PopularScience_19421001_0141_004_0139.xml
article
HW307
HW307
Miscellaneous
[no value]
NEW APPLIANCES to aid in Housekeeping
[no value]
[no value]
[no value]
[no value]
A CHILD'S HEIGHT can be measured with accuracy and a minimum of fussing around to keep the subjects still if the bathroom measuring device shown at the right is employed. The operation consists of adjusting the sliding unit of the gauge so that the ball on the end of its rigid arm touches the top of the child's head.
PopularScience_19421001_0141_004_0140.xml
article
HW308
HW308,HW309,HW310
Home and Workshop
[no value]
Winter Storage for Your Victory Garden
[no value]
[no value]
[no value]
Carl T. Sigman
William Ward
IF YOUR Victory Garden has been the success you hoped after so many weeks of spading, planting, transplanting, cultivating, and bug killing, you are now in the midst of plenty. So much so, it may be, that you have begun to wonder what you are going to do with your bumper crops.
PopularScience_19421001_0141_004_0141.xml
article
HW311
HW311
New Shop Ideas
[no value]
Drill-Press Switch Extension Gives Finger-Tip Control
[no value]
[no value]
[no value]
L. L. GIBSON
THREE hands would be useful when using the drill press for routing and many other high-speed freehand operations—two to hold the work, another to start and stop the motor. Lacking the third hand, why not bring the motor switch closer to those holding the work?
PopularScience_19421001_0141_004_0142.xml
article
HW311
HW311
Outdoors
[no value]
Pulley Near Base of Flagpole Helps in Raising Colors
[no value]
[no value]
[no value]
PERRY HYAMS
DIFFICULTIES experienced with flagpole halyards, especially at schools, can be eliminated to a large extent by the use of a second pulley about 8" from the base of the pole. One taken from an old awning or window sash, or any other kind available, will serve nicely.
PopularScience_19421001_0141_004_0143.xml
article
HW311
HW311
New Shop Ideas
[no value]
Hack-Saw Blade and Block Form Useful Fly Cutter
[no value]
[no value]
[no value]
IRVING SALZER
ROUND holes can be cut in cardboard for models, displays, and the like with a fly cutter made from a small block of wood and an old hack-saw blade. Drill a series of holes about ¼" apart in one edge of the block to receive the pin that serves as a pivot center for holes of various diameters.
PopularScience_19421001_0141_004_0144.xml
article
HW312
HW312,HW313
Radio
[no value]
Portable AC-DC Signal Tester
Oscillator Can Be Used as Wave Meter on Broadcast Band
LIST OF PARTS
[no value]
[no value]
ARTHUR C. MILLER
INEXPENSIVE to build, this portable AC-DC test oscillator recommends itself to present conditions, for it may be used either in the shop or taken out on calls. It operates on both AC and DC current and there is no need to worry about which current a customer might have.
PopularScience_19421001_0141_004_0145.xml
article
HW314
HW314
Radio
[no value]
Servicing Your Radio-PART 6
[no value]
[no value]
[no value]
[no value]
SOME SERVICEMEN HAVE TROUBLE with the ACDC receivers that use the 35Z5-GT rectifier tube. This is shown by the pilot bulb blowing out when a new tube is inserted and the set is switched on. When these blowouts occur, the section of the tube’s heater—just across the pilot bulb—is defective.
PopularScience_19421001_0141_004_0146.xml
article
HW315
HW315
Radio
[no value]
Compact Rectifier Unit Fits Almost Any Radio Chassis
[no value]
[no value]
[no value]
[no value]
DRY BATTERIES are going to be increasingly difficult to obtain, and many owners of home-built or commercial one, two, and three-tube headphone receivers will have to convert theirs to operate on the electric house current. This is simple with a new rectifier unit, easily built at home and so compact that it will fit almost any radio chassis.
PopularScience_19421001_0141_004_0147.xml
article
HW316
HW316,HW317
SCIENCE STUNTS
[no value]
HOME TESTS WITH AIR
[no value]
[no value]
[no value]
[no value]
BALLOON'S ALTITUDE LIMIT. Inflate a toy balloon within a large bottle. Then blow air into, or suck air out of, a hose connection to the bottle as shown. The balloon will respectively shrink, or expand. Likewise a real balloon, only partly filled at sea level, swells to globular shape in the low-pressure air of the stratosphere.
PopularScience_19421001_0141_004_0148.xml
article
HW318
HW318,HW319,HW320
Miscellaneous
[no value]
How Water Is Purified
SIMPLE CHEMICAL REACTIONS GUARD HEALTH AND MACHINES
[no value]
[no value]
KENNETH M. SWEZEY
BY MEANS of tests and chemical reactions easily duplicated at home, water chemists—the men who stand guard over the drinking and industrial water supply of the nation—make a unique contribution to the saving of human lives, materials, and machinery.
PopularScience_19421001_0141_004_0149.xml
advertisement
217
217
[no value]
[no value]
W. L. DOUGLAS SHOE CO.
[no value]
W. L. DOUGLAS SHOE CO.
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0150.xml
advertisement
218
218
[no value]
[no value]
THE CARBORUNDUM COMPANY
[no value]
THE CARBORUNDUM COMPANY
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0151.xml
advertisement
219
219
[no value]
[no value]
Delta Manufacturing Company
[no value]
Delta Manufacturing Company
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0152.xml
advertisement
220
220
[no value]
[no value]
NICHOLSON FILE CO.
[no value]
NICHOLSON FILE CO.
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0153.xml
advertisement
221
221
[no value]
[no value]
HENRY DISSTON & SONS, INC.
[no value]
HENRY DISSTON & SONS, INC.
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0154.xml
advertisement
221
221
[no value]
[no value]
PORTER-CABLE MACHINE CO.
[no value]
PORTER-CABLE MACHINE CO.
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0155.xml
advertisement
221
221
[no value]
[no value]
HARLEY-DAVIDSON MOTOR CO.
[no value]
HARLEY-DAVIDSON MOTOR CO.
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0156.xml
advertisement
222
222
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0157.xml
advertisement
223
223
[no value]
[no value]
CASEIN COMPANY OF AMERICA
[no value]
CASEIN COMPANY OF AMERICA
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0158.xml
advertisement
224
224
[no value]
[no value]
REINHOLD PUBLISHING CORP.
[no value]
REINHOLD PUBLISHING CORP.
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0159.xml
advertisement
224
224
[no value]
[no value]
UNITED STATES PLYWOOD CORPORATION: WELDWOOD PLASTIC RESIN WATERPROOF GLUE
[no value]
UNITED STATES PLYWOOD CORPORATION
WELDWOOD PLASTIC RESIN WATERPROOF GLUE
[no value]
[no value]
PopularScience_19421001_0141_004_0160.xml
advertisement
225
225
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0161.xml
advertisement
226
226
[no value]
[no value]
HASTINGS MFG. CO.: HASTINGS
[no value]
HASTINGS MFG. CO.
HASTINGS
[no value]
[no value]
PopularScience_19421001_0141_004_0162.xml
advertisement
227
227
[no value]
[no value]
THE CELOTEX CORPORATION
[no value]
THE CELOTEX CORPORATION
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0163.xml
advertisement
228
228
[no value]
[no value]
FAYETTE R. PLUMB, Inc.
[no value]
FAYETTE R. PLUMB, Inc.
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0164.xml
article
228
228
[no value]
[no value]
Tape Reinforces Model Coupler
[no value]
[no value]
[no value]
C. E. B.
ON MODEL railway cars equipped with remote-control uncoupling of the type shown, the cars sometimes uncouple of their own accord when they pass over switches and the uncoupling contacts touch the middle rail. This trouble is readily corrected by placing one or two layers of narrow strips of cellulose tape along the edges of the contacts, leaving the center uncovered.
PopularScience_19421001_0141_004_0165.xml
article
228
228
[no value]
[no value]
Studs in Chuck Hold Work True
[no value]
[no value]
[no value]
J. S. MORREL
IT IS often necessary to chuck lathe work so that a previously machined surface facing the chuck runs dead true. Since the faces of chuck jaws.are rarely true enough, one way to attain precision is to drill and tap the chuck body between the jaws for four short studs as shown in the drawing.
PopularScience_19421001_0141_004_0166.xml
article
229
229
[no value]
[no value]
Maple Blocks Form Bearings for High-Speed Grinder
[no value]
[no value]
[no value]
[no value]
HARDWOOD bearings, long used on heavy-duty line shafts, can be employed elsewhere in the shop when metal proves hard to obtain. Having had trouble with the original bearings of a power grinder, I sawed off the housings and welded in their place two flat steel plates ⅜" by 1½" by 2", in each of which I drilled and tapped two holes, as shown above.
PopularScience_19421001_0141_004_0167.xml
article
229
229
[no value]
[no value]
Retaining Pencil in Pocket
[no value]
[no value]
[no value]
CHARLES H. HARDY
TO AVOID losing your pencil from an overall pocket every time you bend over, wrap two or three rubber bands around the middle of it. They cannot harm the fabric, do not make the pencil hard to replace in the pocket, nor interfere with its use as a cord does.
PopularScience_19421001_0141_004_0168.xml
advertisement
229
229
[no value]
[no value]
Savage Arms Corporation
[no value]
Savage Arms Corporation
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0169.xml
advertisement
230
230
[no value]
[no value]
General Motors Corporation
[no value]
General Motors Corporation
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0170.xml
article
230
230,231
[no value]
[no value]
Junked Auto Shafts Provide Stock for Making Tools
[no value]
[no value]
[no value]
C. W. WOODSON
As STEEL becomes increasingly difficult to obtain, more and more thought is being given to the use of old auto parts as a source of this material. However, although there is a large amount of steel in a car, there are actually few parts that can be reused to advantage in the small shop.
PopularScience_19421001_0141_004_0171.xml
article
231
231
[no value]
[no value]
Aligning Drill on Round Work
[no value]
[no value]
[no value]
[no value]
AN EASY way to drill holes precisely on the diameter of round bar stock is shown in the photograph at left. Cut a thin disk from the end of the bar, chuck it in the lathe to run dead true, face it smooth, and centerdrill it to the same size the hole in the work is to be.
PopularScience_19421001_0141_004_0172.xml
article
231
231
[no value]
[no value]
Screw and Wire Form Eyebolt
[no value]
[no value]
[no value]
[no value]
MAKING wing nuts from ordinary screws by soldering a piece of sheet metal in the slot is a familiar trick. Another handy stunt to remember is that neat eyebolts can be made quickly by soldering a ring of stiff wire into the slot of a roundhead screw.
PopularScience_19421001_0141_004_0173.xml
advertisement
231
231
[no value]
[no value]
Smooth-On Manufacturing Co.
[no value]
Smooth-On Manufacturing Co.
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0174.xml
article
232
232
[no value]
[no value]
Auto Pump Floods Lathe Work with Cutting Lubricant
[no value]
[no value]
[no value]
J. F. HYLAND
AN OLD automobile oil pump is excellent for circulating cutting fluid or coolant over work in a lathe, shaper, or milling machine. Tools stay sharp longer and cuts are smoother when such fluids are used. As the pump will circulate the same liquid again and again, it holds cost to a minimum.
PopularScience_19421001_0141_004_0175.xml
advertisement
232
232
[no value]
[no value]
MEDUSA PRODUCTS COMPANY
[no value]
MEDUSA PRODUCTS COMPANY
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0176.xml
advertisement
232
232
[no value]
[no value]
KEUFFEL & ESSER CO.: K&E WYTEFACE STEEL MEASURING TAPES
[no value]
KEUFFEL & ESSER CO.
K&E WYTEFACE STEEL MEASURING TAPES
[no value]
[no value]
PopularScience_19421001_0141_004_0177.xml
advertisement
233
233
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0178.xml
advertisement
234
234
[no value]
[no value]
Advertisement: POPULAR SCIENCE
[no value]
[no value]
POPULAR SCIENCE
[no value]
[no value]
PopularScience_19421001_0141_004_0179.xml
article
235
235
[no value]
[no value]
Pipe Parts Used to Increase Capacity of Drill Press
[no value]
[no value]
[no value]
FRANK J. SORENSEN
A RADIAL extension from its vertical column may increase the capacity of your drill press by as much as three times, so far as the size of the work is concerned. The drawing above shows an extension built for a drill press having a 2¾" column. Select a cast-iron pipe tee of proper size and bore it to a sliding fit on the column.
PopularScience_19421001_0141_004_0180.xml
article
235
235
[no value]
[no value]
Nail Forms Neat Pin Hinge for Thin Cabinet Door
[no value]
[no value]
[no value]
MARC M. SAUNDERS
IN FITTING thin doors to a small sewing cabinet, I found that hinge pins split the wood COMPOSITION NAIL even though holes were drilled for them. Finally I ran a 3/16" deep saw kerf in the edge at each hinge corner, as shown. A pin made by cutting off and bending a fivepenny box nail fitted this snugly.
PopularScience_19421001_0141_004_0181.xml
advertisement
235
235
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0182.xml
advertisement
235
235
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0183.xml
advertisement
235
235
[no value]
[no value]
DIC-A-DOO
[no value]
DIC-A-DOO
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0184.xml
advertisement
236
236
[no value]
[no value]
The Hygienic Products Co.
[no value]
The Hygienic Products Co.
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0185.xml
advertisement
236
236
[no value]
[no value]
The American Pad & Textile Co.
[no value]
The American Pad & Textile Co.
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0186.xml
article
236
236
[no value]
[no value]
Ash Tray Made from Tin Plate Has Built-In Snuffer
[no value]
[no value]
[no value]
EDWARD KIEIIL
AN ASH tray with a built-in cigarette snuffer that can be made from salvaged tin plate is shown in the photograph below. The snuffer can also be attached to a purchased ash tray or to one of the builder’s own design. A domed bottom from a beverage can forms the individual one illustrated.
PopularScience_19421001_0141_004_0187.xml
advertisement
237
237
[no value]
[no value]
Advertisements
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0188.xml
advertisement
238
238
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0189.xml
advertisement
238
238
[no value]
[no value]
BARRON TOOL CO. INC.
[no value]
BARRON TOOL CO. INC.
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0190.xml
advertisement
238
238
[no value]
[no value]
CALCULATOR MACHINE COMPANY
[no value]
CALCULATOR MACHINE COMPANY
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0191.xml
article
238
238
[no value]
[no value]
Easy Way to Lock Small Work on Mandrel for Machining
[no value]
[no value]
[no value]
J. S. MORREL
IT IS sometimes undesirable to force small or fragile work on a mandrel because of the danger of breaking or distorting it. One solution is to use a mandrel that is a free push fit. Mill or file a flat in the part on which the work is to go, taking care to make it parallel to the axis.
PopularScience_19421001_0141_004_0192.xml
article
238
238
[no value]
[no value]
Reamer Welded to Hack Saw Removes Burr in Conduit
[no value]
[no value]
[no value]
RANDOLPH DE FREITAS
SHORT circuits sometimes result from failure to ream the burr out of conduit after it has been sawed to length, especially if the conduit is crowded with wire. By welding a reamer onto the hack saw, as shown, you have a double-purpose tool that makes it easy to ream conduit after it is sawed.
PopularScience_19421001_0141_004_0193.xml
article
238
238
[no value]
[no value]
Belaying Pins for Small Ship Models
[no value]
[no value]
[no value]
[no value]
MODEL belaying pins can be made from common pins as at the left. Lay one on an anvil or steel plate and roll it back and forth with increasing pressure under the head of a hammer. Cut to length, and file the ends smooth.
PopularScience_19421001_0141_004_0194.xml
article
239
239
[no value]
[no value]
Heavy-Duty Wrench Removes Corroded Setscrews
[no value]
[no value]
[no value]
[no value]
MORE leverage for removing safety setscrews that have become corroded in their holes can be obtained by providing a stout handle for the setscrew wrench. Near the end of a steel bar of suitable size, drill a hole the dimension of the small diameter of the wrench.
PopularScience_19421001_0141_004_0195.xml
article
239
239
[no value]
[no value]
Safety-Razor Blade Can't Harm If Carried in a Match Cover
[no value]
[no value]
[no value]
[no value]
A MODEL builder can pocket his ever-handy safety-razor blade without danger of nicking a finger by inclosing it in a cover from which paper matches have been torn. Put the blade, sharp edge down, behind the stub left from the matches.
PopularScience_19421001_0141_004_0196.xml
article
239
239
[no value]
[no value]
Lathe Indexing Device Marked for Speedier Dividing
[no value]
[no value]
[no value]
[no value]
SEVERAL small, popular lathes have a series of sixty indexing holes on the inside face of the headstock cone-pulley assembly. The inaccuracy and time lost in counting these holes one at a time can be eliminated to a great extent by filing a notch opposite each fifteenth hole and two notches opposite each sixth hole.
PopularScience_19421001_0141_004_0197.xml
advertisement
239
239
[no value]
[no value]
THE LINCOLN ELECTRIC CO.
[no value]
THE LINCOLN ELECTRIC CO.
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0198.xml
advertisement
239
239
[no value]
[no value]
WENDELL MFG. CO.
[no value]
WENDELL MFG. CO.
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0199.xml
advertisement
239
239
[no value]
[no value]
J. W. MORTELL CO.
[no value]
J. W. MORTELL CO.
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0200.xml
advertisement
240
240
[no value]
[no value]
SOUTH BEND LATHE WORKS
[no value]
SOUTH BEND LATHE WORKS
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0201.xml
advertisement
241
241
[no value]
[no value]
Advertisement
[no value]
[no value]
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0202.xml
advertisement
242
242
[no value]
[no value]
LIGGETT & MYERS TOBACCO CO.
[no value]
LIGGETT & MYERS TOBACCO CO.
[no value]
[no value]
[no value]
PopularScience_19421001_0141_004_0203.xml