CONTENTS. 



CHAPTER III. 

 320 TO 212 B.a 



PAGB 



School of Science at Alexandria — The Ecliptic and the Zodiac — 

 Greeks believed that the Sun moved round the Earth — Aristar- 

 chus knew that it was the Earth which moved — He also knew 

 of the Obliquity of the Ecliptic, and that the Seasons are caused 

 by it — He knew that the Earth turns daily on its Axis — Euclid 

 discovers that Light travels in straight lines — Archimedes dis- 

 covers the Lever — Principle of the Lever — Hiero's Crown, and 

 how Archimedes discovered the principle of Specific Gravity — 

 Screw of Archimedes 18 



CHAPTER IV. 



280 TO 120 B.C. 



Erasistratus and Herophilus study the Human Body — Eratosthenes 

 the Geographer lays down the First Parallel of Latitude and the 

 First Meridian of Longitude — He measures the Circumference of 

 the Earth — Hipparchus writes on Astronomy — Catalogues 1,080 

 Stars— Calculates when Eclipses will take place — Discovers the 

 Precession of the Equinoxes 25 



CHAPTER V. 



FROM A.D. 70 TO 200. 



Ptolemy founds the Ptolemaic System — He writes on Geography 

 — Strabo, a great traveller, writes on Geography — Studies 

 Earthquakes and Volcanoes — Galen the greatest Physician of 

 Antiquity — Describes the Two Sets of Nerves — Proves that 

 Arteries contain Blood — Lays down a theory of Medicine — 

 Greece and her Colonies conquered by Rome — Decay of Science 

 in Greece — Concluding remarks on Greek Science . . 32 



