University of Virginia Library

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