On the Connexion of the Physical Sciences

61 Cygni action appears atmosphere attraction bismuth bodies cause centre centrifugal force chemical colour comet consequently copper crystals dark David Brewster degree density diamagnetic diameter diminishes direction disturbing double stars earth ecliptic effect electricity equal equator ethereal medium excentricity experiments extremely force glass gravitation greater heat hemisphere increase intensity Jupiter latitude length light lines liquid longitude luminous lunar magnetic major axis mass meridian metallic miles molecules moon motion move nearly nebulæ nodal lines nodes NOTE nutation observations optic axis orbit oscillations parallax paramagnetic particles passing perihelion periodic perpendicular phenomena planet plate polarized pole position produced proportion quantity rays reflected refraction refrangible revolution revolving right angles rings rotation round satellites Sir John Herschel solar spectrum southern hemisphere space stars substances sun’s surface telescope temperature terrestrial tourmaline transmitted undulations Uranus vapour variations velocity vibrations Voltaic waves wire