Optics & Light

Light and Colour Theories, and their relation to light and colour standardization

On an Inversion of Ideas as to the Structure of the Universe

Spectropia

Five of Maxwell's Papers

Visual Illusions: Their Causes, Characteristics and Applications

A Color Notation

Six Lectures on Light

How it Works

The Wonders of Optics

The Le Sage Theory of Gravitation

On Light and Other High Frequency Phenomena

Tesla’s Oscillator and Other Inventions

Seeing the Light

Popular scientific lectures

Curiosities of Science, Past and Present

Experimental Determination of the Velocity of Light

The Colour-Sense: Its Origin and Development

Final Theory of Light