University of Virginia Library


vii

ILLUSTRATIONS

  • SIR ISAAC NEWTON . . . . . . . . . . . . . Frontispiece

  • DIAGRAM TO ILLUSTRATE ALHAZEN'S MEASUREMENT OF THE HEIGHT OF THE ATMOSPHERE . . . . . . Facing p. 20

  • ROGER BACON . . . . . . . . . . . . . . 48

  • NICOLAUS COPERNICUS . . . . . . . . . . . 54

  • TYCHO BRAHE'S QUADRANT . . . . . . . . . . 68

  • JOHANN KEPLER . . . . . . . . . . . . . . 72

  • KEPLER'S MECHANISM TO ILLUSTRATE HIS (INCORRECT) EARLY THEORY AS TO THE ORBITS OF THE PLANETARY BODIES . . . . . . . . . . . . . . . 74

  • GALILEO GALILEI . . . . . . . . . . . . . 78

  • FRONTISPIECE OF GALILEO'S "SYSTEMA COSMICUM'' . . 82

  • GALILEO BEFORE THE TRIBUNAL . . . . . . . . . 90

  • BLAISE PASCAL . . . . . . . . . . . . . . . 122

  • WILLIAM HARVEY . . . . . . . . . . . . . .. 170

  • FRANCIS BACON . . . . . . . . . . . . . . . 192

  • RENÉ DESCARTES . . . . . . . . . . . . 194

  • GOTTFRIED WILHELM VON LEIBNITZ . . . . . . . . 196

  • VIEW IN THE LIBRARY OF THE ROYAL SOCIETY . . . . 206

  • VON GUERICKE'S AIR-PUMP . . . . . . . . . . 212

  • REPRODUCTION OF A PLATE IN HOOKE'S "MICROSCOPICAL
    OBSERVATIONS'' . . . . . . . . . . 216

  • ROBERT HOOKE'S MICROSCOPE . . . . . . . . . . 218


  • ix

  • HUYGENS'S CLOCK . . . . . . . . . . . . . Facing p. 222

  • DIAGRAM TO ILLUSTRATE NEWTON'S LAW OF GRAVITATION . . . . . . . . . . . . . . . . 238

  • BENJAMIN FRANKLIN . . . . . . . . . . . . 286

  • STEPHEN HALES'S EXPERIMENT TO DETERMINE THE PRESSURE
    OF THE FLOW OF SAP . . . . . . . . . . 298

  • CAROLUS LINNÆUS . . . . . . . . . . . . . 302