Volume 163, Issue 5
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Features
Rubber for America
Chemical Factories at Home, Plantations in Brazil
Dry-Cleaning Grows Up
Chemistry Stimulates Growth of the Business Into a Great Nation-Wide Industry
Banana Fiber, Temperature Pills, and more
Hemp Substitute From Skins of the Fruit
What are Pattee's Caves?
Are They the Remains of a Medieval Irish Monastery in New Hampshire, as is Claimed?
Blind Landing
Exhaustive Tests Show Effectiveness of System Being Installed at Six Airports
Autogiro, Safety
Plastic Metals
New Knowledge Provides Science with Better Answers about Metals' Inner Nature
Less Friction, "Oiling" Oil, and more
Barium Film Lubricates Bearing In A Vacuum
The Origin of the Earth
Astrophysicists Still Are Unable to Solve This Near-at-Home Problem with Finality
Dumps a Car a Minute
Engineers Construct World's Greatest Scientific and Speedy Coal Car Dumper
Nitrided Stainless, Cantonments, and more
Life's Debt to Death
Nature's Attempts to Circumvent Death in Her Species May Suggest Conscious Purpose
The Auto Show Moves In
Mechanics of Handling the Cars and Other Displays in the Ballrooms of a Huge Hotel