XX 
LIST OF ILLUSTRATIONS. 
PAGE 
Amberleya and Bathanalia , 348 . 
. 
348 
Limnotrochus and Jurassic shells . 
. 
349 
Chytra and 0 nust us ....... 
. 
35° 
Spekia and Niridomus ....... 
. 
35i 
Melania admirabilis ....... 
* * 
353 
MAPS. 
Map of new positions on Lake Tanganyika 
Facing 
8 
Map of the route of the Tanganyika Expeditions 
>> 
10 
Geological Map of the Nyassa region . . . . 
>) 
48 
Geological Map of the Tanganyika region 
» 
5 2 
Map of the distribution of aqueous deposits in part of the African 
interior ......... 
Ft icing 
75 
Geological Map of the districts north of Tanganyika to 
the Albert 
Nyanza ......... 
Facing 
80 
Map of the districts explored north of Tanganyika during the Second 
Tanganyika Expedition by M. Fergusson . . . End of Index 
