THE SHOEES OF BEITAIN. 



37 



against tlie force of the waves, which else, having 

 so strong a purchase, would soon overturn it. To 

 guard against this, the ordinary mode of attachment 

 to the rock would be insufficient ; and, instead of the 

 primary root, the base of the stem is swollen out into 

 a large hollow bulb, the extended surface of which 

 putting forth powerful rootlets from every part enables 

 the plant to defy the violence of the winter stcim. 



The Sea-furbelows {Laminaria buK^aa). 



It is a fact worthy of our notice and admiration, that 

 nothing of the kind takes place while the plant is 

 young and small ; it is only when it acquires size 

 and weight, or, in other words, it is only when addi- 

 tional support becomes needful, that this extraordinary 



