Light Science for Leisure HoursFront matterReading editionChapter navigation35 reading sectionsGo to chapterChoose a chapter…Front matterLIGHT SCIENCE FOR LEISURE HOURS.PREFACE TO THE FIFTH EDITION.PREFACE TO SECOND EDITION.PREFACE TO FIRST EDITION.STRANGE DISCOVERIES RESPECTING THE AURORA.THE EARTH A MAGNET.OUR CHIEF TIME-PIECE LOSING TIME.ENCKE THE ASTRONOMER.VENUS ON THE SUN’S FACE.BRITAIN’S COAL CELLARS.THE SECRET OF THE NORTH POLE.IS THE GULF STREAM A MYTH.FLOODS IN SWITZERLAND.A GREAT TIDAL WAVE.DEEP-SEA DREDGINGS.THE TUNNEL THROUGH MONT CENIS.TORNADOES.VESUVIUS.THE EARTHQUAKE IN PERU.THE GREATEST SEA-WAVE EVER KNOWN.THE USEFULNESS OF EARTHQUAKES.THE FORCING POWER OF RAIN.A SHOWER OF SNOW-CRYSTALS.LONG SHOTS.INFLUENCE OF MARRIAGE ON THE DEATH-RATE.THE TOPOGRAPHICAL SURVEY OF INDIA.A SHIP ATTACKED BY A SWORD-FISH.THE SAFETY-LAMP.THE DUST WE HAVE TO BREATHE.PHOTOGRAPHIC GHOSTS.THE OXFORD AND CAMBRIDGE ROWING STYLES.BETTING ON HORSE RACES: OR, THE STATE OF THE ODDS.SQUARING THE CIRCLE.A NEW THEORY OF ACHILLES’ SHIELD.Beginning of this editionNext chapter →LIGHT SCIENCE FOR LEISURE HOURS.All chapters and sections (35)Opening pagesFront matterOther sectionsLIGHT SCIENCE FOR LEISURE HOURS.PREFACE TO THE FIFTH EDITION.PREFACE TO SECOND EDITION.PREFACE TO FIRST EDITION.STRANGE DISCOVERIES RESPECTING THE AURORA.THE EARTH A MAGNET.OUR CHIEF TIME-PIECE LOSING TIME.ENCKE THE ASTRONOMER.VENUS ON THE SUN’S FACE.BRITAIN’S COAL CELLARS.THE SECRET OF THE NORTH POLE.IS THE GULF STREAM A MYTH.FLOODS IN SWITZERLAND.A GREAT TIDAL WAVE.DEEP-SEA DREDGINGS.THE TUNNEL THROUGH MONT CENIS.TORNADOES.VESUVIUS.THE EARTHQUAKE IN PERU.THE GREATEST SEA-WAVE EVER KNOWN.THE USEFULNESS OF EARTHQUAKES.THE FORCING POWER OF RAIN.A SHOWER OF SNOW-CRYSTALS.LONG SHOTS.INFLUENCE OF MARRIAGE ON THE DEATH-RATE.THE TOPOGRAPHICAL SURVEY OF INDIA.A SHIP ATTACKED BY A SWORD-FISH.THE SAFETY-LAMP.THE DUST WE HAVE TO BREATHE.PHOTOGRAPHIC GHOSTS.THE OXFORD AND CAMBRIDGE ROWING STYLES.BETTING ON HORSE RACES: OR, THE STATE OF THE ODDS.SQUARING THE CIRCLE.A NEW THEORY OF ACHILLES’ SHIELD.LIGHT SCIENCE.◇LONDON: PRINTED BY SPOTTISWOODE AND CO., NEW-STREET SQUARE AND PARLIAMENT STREET◇LIGHT SCIENCE FOR LEISURE HOURS. →