Consider the Dinosaur
He Was Long of Body but Short of Intellect, and He Died Out--Just Why, We Do Not Know, There Were Dozens of Types of Dinosaurs, How We Know
Volume 156, Issue 3
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Features
What Brings Them Home?
America's Heavy Cruisers, March 1937
Step by Step, Design, Armament, Armor Have Been Improved with Each New Cruiser Class, We Now Have An Efficient Cruiser Fleet
52-Year-Old Fire Fought by WPA
The Problem of the Holy Shroud
Tubular Frame--Rear Engine
All Four Wheels Have Independent Springing, Engine, Transmission, and Differential In One Unit
The Analysis of the Sun
Progress is Being Made in the Detection of New Solar Elements by Means of the Spectroscope, Osmium, Iridium, Thulium Now Added to the List
Rock-Fill Dam for Flood Control
Largest of its Type for the Purpose, Built in Six Zones, Compacted With Water, Huge Trucks Used, Gasoline-Operated Tampers
Enlarge--Print--Retouch
A Commercial Unit Made at Home, Materials Easily Obtainable, Uses Photoflood Bulbs for Light Source, High-Speed Enlarging