Volume 129, Issue 5
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Features
The Drama of Disputed Documents
Some of the Tests by Which the Expert Reveals the Forgery for What It Is
Earthquakes and Volcanoes
The Mechanics of These Titanic Subterranean Forces and Their Destructive Careers
Our Abrams Investigation-II
A Test to Determine the Accuracy of the Electronic Reactions Diagnosis
Within the Atom
At the Very Foundation of Matter with the Electrons and Protons
The Father of Our Modern Navy
How Roosevelt Pulled the Navy Out of the Rut and Gave It a Fighting Edge
Has Sea Power Passed?
An Authoritative Expos of the Extravagant Claims of the Air Enthusiasts
New Lift Bridges on the Jersey Central Railroad Across Newark Bay
Materialized Hands
The Franek Kluski Wax Molds, and the Conclusions that May be Drawn from Them
The Animal Hospital
Surgical Treatment for Horses, Cows, Mules, Dogs, Cats, Goats, Canary Birds and So On
Squeezing Softwood to Make It Hardwood, Angelique--A Wood that Resists the Attack of the Teredo
Why Headlight Glare?
How Uncle Sam Tested the Headlights on 400 Ordinary Motor Cars and What He Found
A Fool-Proof Recharger for Storage Batteries, Electric Heat for the Type-Metal Pot
Righting a Capsized Ship
Successful Righting and Setting Afloat of the Brazilian Steamship Avare in Hamburg Harbor
Something Different in Belt Conveyors, Directive Radio Transmission on a Wave Length of 10 Meters and more
Improving Irish Linen, When Our Teeth are Out of Gear and more
A Versatile Motorcraft
With the Men Who Fly--II
How the Glider Flights of German Students Have Brought About a New Era in Aeronautics
A Delicate Balance, Villa's Buried Treasure
A Photographic Museum
Saving a Cathedral by Compressed Air
Restoring Lincoln Cathedral by the Compressed Air Drill and Grouting
Automobiles and Near-Automobiles, Forests and Fertility and more
Ball Bearings and how they are Made
The Tiny but Perfect Spheres that Keep Down the Friction Toll in Modern Machinery
Keeping Our Water Fit to Drink
Microscopic Denizens of Our Reservoirs, and the Means Used to Keep Them Under Control
A Midget Wind Tunnel that Works Like a Giant, A 29-Ton Portable Riveter and more
Shifting Speeds with an Oil Pump
Some Details of a New British Variable-Speed Gear Without Gear-Wheels
Clever Contrivances of the Garage Man, A Circular Slide-Rule
Fish as Food and Fertilizer
How the Annual Catch of Over Two and One Half Billion Pounds Is Disposed of as Fresh and Frozen Food, and Fertilizer for the Farms
Feeding the Automobile Engine
Purdue University Investigation of the Proper Treatment of Mixture that Goes to Carburetor