{"product_id":"the-book-of-the-sextant-with-ancient-and-modern-instruments-of-navigation","title":"The Book of the Sextant, with Ancient and Modern Instruments of Navigation","description":"63 pp. Includes black-and-white illustrations. CONTENTS: The Astrolabe; Gunter's Quadrant; The Nocturnal; Cross Staff or Fore Staff; The Back Staff; Principles of the Sextant; Construction of the Sextant; Astronomical Telescopes; Adjustment of the Sextant; Unadjustable Errors of the Sextant in the Examination of \"Sextant Errors\"; Method of Using the Sextant; To Resilver the Index and Horizon Mirrors; Sextant Accessories; The Artificial Horizon; The Paget Artificial Horizon for Attaching to the Sextant and Use in a Sea-Way; The Gyroscope Collimator Invented by Admiral Fleurais; The Quintant; Sounding Sextant; The Night Octant; Angle Sextant; The Double Sextant; The Navigraph; The Goniograph; Reflecting Circles; The Dip Sector; The Station Pointer; Star Globe.","brand":"James Brown \u0026 Son","offers":[{"title":"Default Title","offer_id":40161950892102,"sku":"2326541","price":35.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1232\/9510\/products\/2326541.jpg?v=1658004084","url":"https:\/\/ym-demo.myshopify.com\/products\/the-book-of-the-sextant-with-ancient-and-modern-instruments-of-navigation","provider":"Yesterday's Muse","version":"1.0","type":"link"}