CONTENTS Xlil 



PAGE 



C. THE LOGIC OF HISTORY . . 297 



1. THE POSSIBLE ASPECTS OF HISTORY .... 299 



2. PHYLOGENETIC POSSIBILITIES ..... 304 



3. THE HISTORY OF MANKIND ..... 306 



Cumulations in Human History .... 308 



Human History not an "Evolution" . . . 311 



The Problem of the " Single " as such . . 315 



CONCLUSIONS ABOUT SYSTEMATICS AND HISTORY IN GENERAL . 322 



