Treatise On Light

The causes of the reflection and refraction of iceland crystal

Preface

Christiaan Huygens

Rays Propagated In Straight Lines

Christiaan Huygens

Does the spreading of light take time?

Christiaan Huygens

The Luminiferous Aether

Christiaan Huygens

The Constant Speed of Light

Christiaan Huygens

Contact Forces

Christiaan Huygens

Reflection

Christiaan Huygens

The Emanation of These Waves

Christiaan Huygens

Refraction

Christiaan Huygens

Refraction Of The Air

Christiaan Huygens

The Strange Refraction Of Iceland Crystal

Christiaan Huygens

The Iceland Crystal

Christiaan Huygens

The Figures Of The Transparent Bodies

Christiaan Huygens

Illustrations

Christiaan Huygens