XX CONTENTS. 



BOOK III. 1804-1829. 



CHAPTER I. 



PAGH 



Books, . 307 



CHAPTER II. 

 Central Asia, 384 



BOOK IV. 1829-1859. 



CHAPTER I. 

 Humboldt at Homh), -, . . 413 



CHAPTER n. 

 Back tc Tegel, 477 



