1G CONTENTS. 



Page 



4. Greek Commentators of Plato and Others 207 



5. Arabian Commentators of Aristotle 208 



Chapter III. — Of the Mysticism of the Middle Ages.. 211 



1. Neoplatonic Theosophy 212 



2. Mystical Arithmetic 216 



3. Astrology 218 



4. Alchemy 224 



5. Magic 225 



Chapter IV. — Of the Dogmatism of the Stationary 



Period. 



1. Origin of the Scholastic Philosophy 228 



2. Scholastic Dogmas 230 



3. Scholastic Physics 235 



4. Authority of Aristotle among the Schoolmen 236 



5. Subjects omitted. Civil Law. Medicine , . 238 



Chapter V. — Progress of the Arts in the Middle Ages. 



1 . Art and Science 239 



2. Arabian Science 242 



3. Experimental Philosophy of the Arabians 243 



4. Roger Bacon 245 



• r >. Architecture of the Middle Ages 246 



6. Treatises on Architecture 248 



BOOK V. 



HISTORY OF FORMAL ASTRONOMY AFTER THE 

 STATIONARY PERIOD. 



Introduction 255 



Chapter I. — Prelude to the Inductive Epoch of Co- 

 pernicus 257 



Chapter II. — Induction of Copernicus. The Heliocen- 

 tric Theory asserted on Formal Grounds 262 



