ALP LUSGEN: October 1885.
CONTENTS.
- Introductory
- Uses of Experiment
- Early Scientific Notions
- Sciences of Observation
- Knowledge of the Ancients regarding Light
- Defects of the Eye
- Our Instruments
- Rectilineal Propagation of Light
- Law of Incidence and Reflection
- Sterility of the Middle Ages
- Refraction
- Discovery of Snell
- Partial and Total Reflection
- Velocity of Light
- Roemer, Bradley, Foucault, and Fizeau
- Principle of Least Action
- Descartes and the Rainbow
- Newton's Experiments on the Composition of Solar Light
- His Mistake regarding Achromatism
- Synthesis of White Light
- Yellow and Blue Lights produce White by their Mixture
- Colours of Natural Bodies
- Absorption
- Mixture of Pigments contrasted with Mixture of Lights
- Origin of Physical Theories
- Scope of the Imagination
- Newton and the Emission Theory
- Verification of Physical Theories
- The Luminiferous Ether
- Wave-theory of Light
- Thomas Young
- Fresnel and Arago
- Conception of Wave-motion
- Interference of Waves
- Constitution of Sound-waves
- Analogies of Sound and Light
- Illustrations of Wave-motion
- Interference of Sound Waves
- Optical Illustrations
- Pitch and Colour
- Lengths of the Waves of Light and Rates of Vibration of the
- Ether-particles
- Interference of Light
- Phenomena which first suggested the Undulatory Theory
- Boyle and Hooke
- The Colours of thin Plates
- The Soap-bubble
- Newton's Rings
- Theory of 'Fits'
- Its Explanation of the Rings
- Overthrow of the Theory
- Diffraction of Light
- Colours produced by Diffraction
- Colours of Mother-of-Pearl.
- Relation of Theories to Experience
- Origin of the Notion of the Attraction of Gravitation
- Notion of Polarity, how generated
- Atomic Polarity
- Structural Arrangements due to Polarity
- Architecture of Crystals considered as an Introduction to their
- Action upon Light
- Notion of Atomic Polarity applied to Crystalline Structure
- Experimental Illustrations
- Crystallization of Water
- Expansion by Heat and by Cold
- Deportment of Water considered and explained
- Bearings of Crystallization on Optical Phenomena
- Refraction
- Double Refraction
- Polarization
- Action of Tourmaline
- Character of the Beams emergent from Iceland Spar
- Polarization by ordinary Refraction and Reflection
- Depolarization.