IRREGULAR TROOPS. 



CHAPTER V 



Bahia Blanca — Geolo£;y — Numerous gii,'antic extinct Quadrupeds — Recent Extinction 

 — Longevity of Species — Large Animals do not require a luxuriant Vegetation — 

 Southern Africa — Siberian Fossils — I'wo Species of Ostrich — Habits of Oven- 

 bird — Armadilloes — Venomous Snake, Toad, Lizard — Hybernation of Animals — 

 Habits of Sea- Pen — Indian Wars and Massacres — Arrowhead, antiquarian 

 Relic, 



BAHL\ BLANCA 



The Beagle arrived here on the 24th of August, and a week 

 afterwards sailed for the Plata. With Captain Fitz Roy's 

 consent I was left behind, to travel by land to Buenos Ayres. 

 I will here add some observations, which were made during 

 this visit and on a previous occasion, when the Beagle was 

 employed in surveying the harbour. 



The plain, at the distance of a few miles from the coast, 



