
Substituting for Sunlight
Has a New Era of Artificial Lighting Arrived? Illumination That Approximates Sunlight Is Foreshadowed

Substituting for Sunlight
Has a New Era of Artificial Lighting Arrived? Illumination That Approximates Sunlight Is Foreshadowed

Men, Atoms, and Stars
Man Has Existed but a Day; Observed the Universe but a Minute--Is it any Wonder He Still Has Much to Learn?

Future Light
Although the Life and Work of Modern Man is Infinitely Better Lighted than it was in the Days of His Ancestors, We are Only at the Threshold of a Still Greater Expansion in ArtificiaI Illumination

The Super-Telescope
A Scientific Fantasy of the Past and the Future

The Sky by Day
Solved and Unsolved Problems Which It Places Before Our Eyes

For Faster Seeing
Tests that Show How Better Lighting Makes Us See Faster as Well as Better

The Ultraviolet in Sunlight
Industrial Uses and Limitations of this Portion of the Solar Radiation

Recent Advances in Lighting
The Modern Illuminating Engineer: Artist, Electrician, Chemist and Psychologist

High-Lights of Air-Travel
Some of the Things Seen from a Plane That Contradict Experience Gained on the Ground

Some Interesting Color Phenomena

Light and Progress
The Part Played by Artificial Illuminants in the Development of the Human Race

Ultraviolet Energy
A Study of the Short Light-Waves from Economic Viewpoints

The Principles of Camouflage--III
The Visibility of Airplanes

The Principles of Camouflage--II
Low Visibility and Optical Illusion on the Sea

The Principles of Camouflage--I
The Art of Concealment and Deception as Practiced on Land

Pressure Marks on Photo Plates

The Art of Mobile Color
And a Discussion of the Relation of Color to Sound

The Distribution of Luminosity in Nature
Great Brightness Below the Horizon is Painfully Felt by the Eye

An Analysis of Glare from Paper