Light Science for Leisure Hours; a Series of Familiar Essays on Scientific Subjects, Natural Phenomena, &c

Achilles Ångström appear Aratus arctic astronomer Atlantic aurora auroral light cause celestial circle circumference circumstance coal comet consider constellations consumption continually course crater Crozet Island cyclones depth destructive difficulty disturbance doubt earth earthquake effects enormous equal equator equatorial eruption evidence extended fact feet force gradually Greenland Gulf Stream Halley's method heat height Homer horse hundred increase instance Ischia islands John Herschel land lava length less magnetic needle Maury miles millions of tons moon motion mountain nature nearly North Pole observed ocean odds pass peculiarity phenomena planet present reached recognised region remarkable respecting result says sea-wave seems seen Shield Shield of Achilles ship shores side Sir Charles Lyell solar spectrum Spitzbergen storm sun's distance supposed surface survey theory tion transit transit of Venus vapour Venus Vesuvius volcanic westerly white ball whole winds zodiacal light