THE 



CHAP. I. 



Amphibious between sea and land." 



MILTON. 



OP AMPHIBIOUS ANIMALS 

 GENERAL. 



Introduction. 



AMPHIBIA is a title given by Linnaeus to 

 animals which live occasionally on land and in 

 water. They are divided into two orders, viz. rep- 

 tiles and serpents ; the former are furnished with 

 legs, and have flat naked ears, without auricles ; 

 the latter are destitute of feet, fins, and ears ; 

 none have external ears. These animals have 

 cold blood. From the peculiar structure of their 

 organs, they are able to suspend respiration at 

 pleasure, and thus to support a change of ele- 

 ment uninjured. Their abode is usually in re- 

 tired, watery, and shady places, where they are, 

 TSO. 38. - A 2 



