CHAPTER IV. 



IX SOUTHERN SEAS. 



The Log-Bcx)k — Bahia — Singular Appearance of the Water — The 

 Vampire Bat — Slavery — Trips into the Countrj-^Rare Col- 

 lections — In the Brazilian Forest — Shooting Monkeys — The 

 Click of a Butterfly — ^Jumping Spiders — Electrical Displajre — 

 The Plata. 



HE sea life of our young 

 hero was a time of con- 

 tinued activity. Every 

 moment when not com- 

 pletely incapacitated by 

 sea-sickness was devoted 

 to his studies, and to the 

 natural history log-book 

 which he was keeping. 

 From the stem of the 

 vessel he swung various 

 kinds of nets to entrap the 

 smaller forms of floating or pelagic animal life, while 

 fishing-lines were employed to capture rare and un- 

 known members of the finny tribe. A few miles from 

 Bahia, Darwin's attention was called to the strange 



31 



