The Letter of Petrus Peregrinus on the Magnet, A.D. 1269PART IBrother Arnold translationChapter navigation19 reading sectionsGo to chapterChoose a chapter…Front matterINTRODUCTORYPART IPART I CHAPTER I PURPOSE OF THIS WORKChapter II · QUALIFICATIONS OF THE EXPERIMENTERChapter III · CHARACTERISTICS OF A GOOD LODESTONEChapter IV · HOW TO DISTINGUISH THE POLES OF A LODESTONEChapter V · HOW TO DISCOVER THE POLES OF A LODESTONE AND HOW TO TELL WHICH IS NORTH AND WHICH SOUTHChapter VI · HOW ONE LODESTONE ATTRACTS ANOTHERChapter VII · HOW IRON TOUCHED BY A LODESTONE TURNS TOWARDS THE POLES OF THE WORLDChapter VIII · HOW A LODESTONE ATTRACTS IRONChapter IX · WHY THE NORTH POLE OF ONE LODESTONE ATTRACTS THE SOUTH POLE OF ANOTHER AND VICE VERSAChapter X · AN INQUIRY INTO THE CAUSE OF THE NATURAL VIRTUE OF THE LODESTONEPART IIPART II CHAPTER I THE CONSTRUCTION OF AN INSTRUMENT FOR MEASURING THE AZIMUTH OF THE SUN THE MOON OR ANY STAR ON THE HORIZONChapter II · THE CONSTRUCTION OF A BETTER INSTRUMENT FOR THE SAME PURPOSEChapter III · THE ART OF MAKING A WHEEL OF PERPETUAL MOTIONNOTESTranscriber’s NotesPrevious chapter ←INTRODUCTORYNext chapter →Part 1 — PART I CHAPTER I PURPOSE OF THIS WORKAll chapters and sections (19)Opening pagesFront matterOther sectionsINTRODUCTORYParts1Part 1 · Parts1Part 1 · Chapters2345678910Parts2Part 2 · Parts2Part 2 · Chapters23Part 2 · Other sectionsNOTESTranscriber’s Notes3◇← INTRODUCTORYPART I CHAPTER I PURPOSE OF THIS WORK →