CHAPTER I 



ANIMALS WHICH HAVE LATELY BECOME EX- 



TINCT — THE 

 CRUST 



STRATA OF THE EARTH S 



EXTINCT animals are animals which no 

 longer exist in a living state. Of course 

 a vast number of individual animals, and men 

 too, become extinguished, or extinct, in the 

 course of every year, every month and every 

 day. 



But the extinct animals of which I wish to 

 speak in these lectures are extinct hinds of 

 animals, kinds of animals which no longer exist 

 on the surface of the globe in a living state, 

 although once they flourished and held their 

 own. 



We know of some of them by tradition. The 

 records of men of past ages who have seen some 

 animals, now extinct, and have written about 

 them, and even drawn them, have by human 

 care been passed on to the present day. We 



