Volume 123, Issue 16
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Features
Forty Centuries Ago--And Now
Why Should We Not Make Paper Again from the Papyrus?
Concrete and the Building Crisis
Some of the Advantages Which Have Led to Wide Adoption of This Structural Type
The Aerial Cruiser
Some Details Concerning the Latest British Rigid Dirigible R-80
Items in Brief
A Department Devoted to Current News in All Fields of Pure and Applied Science
Preventing Rust at High Temperatures
Aluminum-Coated Metals That Will Go to the Melting Point Without Formation of Scale
A Pocket Machine Gun
What Science did for Cheese
How Precision Was Substituted for Guesswork in the Making of Swiss and Other Varieties