34 THE WALKS ABROAD OF 



wound heals, a new ray is formed, and no trace of the 

 accident remains. In due course the amputated 

 part, instead of drying up, throws out buds, and 

 completes itself so well that the end of the injured 



BBYOXOA ( Moss-animals] . 



Asterias is that it is replaced by two whole and 

 healthy individuals. 



" From this you may guess something of the prodi- 

 gality of life in the bosom of the ocean. Do you wish 

 another example of it ? Here, then, is an entire 

 aquarium formed by a simple shell." 



