138 WESTERN SERIES OF READERS. 



lettuce is the Ulva, or Green Layer. Some people, 

 indeed, call it Sea-lettuce, but its true name is 

 Ulva. It is very bright and cheery, and in the 

 cool water it grows freely. Very often pieces get 

 torn off by the waves, and then it floats or is 

 washed ashore, but it usually grows attached to a 

 rock. 



When you gather it, chip off a little piece of 

 the stone on which it is growing, and then it will 

 have an anchor. Then put it in a jar of sea- 

 water and set it in the sunshine; perhaps you 

 will be able to see little bubbles of oxygen gather 

 on its surface. 



Here is another plant, looking somewhat like 

 the Ulva; but it is of a different color. 



Yes, and it is called Porphyra, or Purple Layer. 

 In Ireland it is called sloke, and to some extent 

 it is gathered for food. It can be dried and after- 

 wards boiled. It is best when gathered in winter 

 or early spring. It is not the only seaweed that 

 is eaten by men, by any means, and there are 

 many things in the sea that we could eat if we 

 were very hungry. 



But now let us see the animals. Here is a sea- 

 worm. Where did you find him, Mary? 



I found him in the sand, down between two 

 rocks. There seemed to be some hairs growing 



