"Condensing Twin Prism Light.—Part of the Lamiash light in the Firth of Clyde. Its action will be easily understood by the numbers shown on the diagram." —The Encyclopedia Britannica, 1910

Twin Prism

"Condensing Twin Prism Light.—Part of the Lamiash light in the Firth of Clyde. Its action will…

"Showing diagrammatically one explanation of the production of light waves by revolving electrons." —Croft 1917

Light Waves Explanation

"Showing diagrammatically one explanation of the production of light waves by revolving electrons."…

"Diagram indicating one explanation which has been advanced for light and heat waves generated by the movement of an electron around its orbit in a molecule and by the simultaneous movement of the molecule." —Croft 1917

Light Waves

"Diagram indicating one explanation which has been advanced for light and heat waves generated by the…