CONTENTS

PAGE
Note by Mr. Frederic Harrison[v.]
Translator’s Preface[xiii.]
Introduction by Professor Lévy-Bruhl[1]
BOOK I.
ChapterI.—The Philosophical Problem[23]
“II.—The Law of the Three States[35]
“III.—The Classification of the Sciences[49]
“IV.—Science[60]
“V.—Science (continued) Phenomena and Laws[79]
“VI.—Science (continued) Positive Logic[103]
BOOK II.
Introduction.—The Philosophy of the Sciences[121]
ChapterI.—Mathematics[125]
“II.—Astronomy[142]
“III.—Sciences of the Inorganic World[154]
“IV.—Biology[171]
“V.—Psychology[188]
BOOK III.
ChapterI.—Transition from Animality to Humanity—Artand Language[213]
“II.—General Considerations on Social Science[230]
“III.—Social Statics[249]
“IV.—Social Dynamics[260]
“V.—The Philosophy of History[276]
BOOK IV.
ChapterI.—The Principles of Ethics[303]
“II.—Social Ethics[319]
“III.—The Idea of Humanity[334]
Conclusion[343]