CONTENTS. 



MM 



AUTHOR'S PREFACE TO THE FIRST EDITION . vii 



AUTHOR'S PREFACE TO THE SECOND AND THIRD EDITIONS . xi 

 NOTE BY THE TRANSLATOR . . . . . . xvii 



STEPPES AND DESERTS . 1 



Annotations and Additions ..... 27 



CATARACTS OF THE ORINOCO . . . .- . . 207 

 Annotations and Additions . . . 233 



NOCTURNAL LIFE OF ANIMALS IN THE PRIMEVAL FOREST . 257 

 Annotations and Additions . 273 



HYPSOMETRIC ADDENDA .277 



For General Summary of the CONTENTS of the First Volume, 



