StargazingBOOK I. THE PRE-TELESCOPIC AGE.Reading editionChapter navigation43 reading sectionsGo to chapterChoose a chapter…Front matterPREFACE.BOOK I. THE PRE-TELESCOPIC AGE.Chapter I · THE DAWN OF STARGAZING.Chapter II · THE FIRST INSTRUMENTS.Chapter III · HIPPARCHUS AND PTOLEMY.Chapter IV · TYCHO BRAHE.BOOK II. THE TELESCOPE.Chapter V · THE REFRACTION OF LIGHT.Chapter VI · THE REFRACTOR.Chapter VII · THE REFLECTION OF LIGHT.Chapter VIII · THE REFLECTOR.Chapter IX · EYEPIECES.Chapter X · PRODUCTION OF LENSES AND SPECULA.Chapter XI · THE “OPTICK TUBE.”Chapter XII · THE MODERN TELESCOPE.BOOK III. TIME AND SPACE MEASURERS.Chapter XIII · THE CLOCK AND CHRONOMETER.Chapter XIV · CIRCLE READING.Chapter XV · THE MICROMETER.BOOK IV. MODERN MERIDIONAL OBSERVATIONS.Chapter XVI · THE TRANSIT CIRCLE.Chapter XVII · THE TRANSIT CLOCK AND CHRONOGRAPH.Chapter XVIII · “GREENWICH TIME” AND THE USE MADE OF IT.Chapter XIX · OTHER INSTRUMENTS USED IN ASTRONOMY OF PRECISION.BOOK V. THE EQUATORIAL.Chapter XX · VARIOUS METHODS OF MOUNTING LARGE TELESCOPES.Chapter XXI · THE ADJUSTMENTS OF THE EQUATORIAL.Chapter XXII · THE EQUATORIAL OBSERVATORY.Chapter XXIII · THE SIDEROSTAT.Chapter XXIV · THE ORDINARY WORK OF THE EQUATORIAL.BOOK VI. ASTRONOMICAL PHYSICS.Chapter XXV · THE GENERAL FIELD OF PHYSICAL INQUIRY.Chapter XXVI · DETERMINATION OF THE LIGHT AND HEAT OF THE STARS.Chapter XXVII · THE CHEMISTRY OF THE STARS: CONSTRUCTION OF THE SPECTROSCOPE.Chapter XXVIII · THE CHEMISTRY OF THE STARS (CONTINUED): PRINCIPLES OF SPECTRUM ANALYSIS.Chapter XXIX · THE CHEMISTRY OF THE STARS (CONTINUED): THE TELESPECTROSCOPE.Chapter XXX · THE TELEPOLARISCOPE.Chapter XXXI · CELESTIAL PHOTOGRAPHY.—THE WAYS AND MEANS.Chapter XXXII · CELESTIAL PHOTOGRAPHY (CONTINUED).—SOME RESULTS.Chapter XXXIII · CELESTIAL PHOTOGRAPHY (CONTINUED)—RECENT RESULTS.INDEX.TRANSCRIBER'S NOTESPrevious chapter ←PREFACE.Next chapter →Book 1 — Chapter I · THE DAWN OF STARGAZING.All chapters and sections (43)Opening pagesFront matterOther sectionsPREFACE.Books1Book 1 · Chapters1234Books2Book 2 · Chapters56789101112Books3Book 3 · Chapters131415Books4Book 4 · Chapters16171819Books5Book 5 · Chapters2021222324Books6Book 6 · Chapters252627282930313233Book 6 · Other sectionsINDEX.TRANSCRIBER'S NOTESxx◇STARGAZING: PAST AND PRESENT◇1◇← PREFACE.CHAPTER I. THE DAWN OF STARGAZING. →