56 THE HISTORY OF SCIENCE 



heliocentric, it was but a link in the chain of suc- 

 cesses in astronomy to which Tycho Brahe, Kepler, 

 Galileo, Newton, and their followers contributed. 



REFERENCES 



The Catholic Encyclopedia. 



J. L. E. Dreyer, History of the Planetary Systems. 

 Encyclopedia Britannica. Arabian Philosophy; Roger Bacon. 

 W. J. Townsend, The Great Schoolmen of the Middle Ages. 

 R. B. Vaughan, St. Thomas of Aquin ; his Life and Labours. 

 Andrew D. White, A History of the Warfare of Science with Theol- 

 ogy in Christendom. 



