88 



WESTERN SERIES OF READERS. 



because the former are more dull in color and 

 more rough in appearance. 



The largest Olive-shells that you see in collec- 

 tions and museums come from parts of the ocean 

 which are much warmer than the water on our 

 coast. Some of them are three or four inches long, 

 and the}?- are very beautiful. The largest one has 



Figure 41. 



markings on it, which make it look like a camp of 

 soldiers; and so it is called the Tent-shell. 



In the sand and gravel along the coast you may 

 -sometimes find other interesting shells, though 

 they seldom live in groups, like the olives. One 

 of the prettiest is shown in Figure 41, and is 

 called the Red-lined Sand-shell. The shells are 

 pure white within, and on the outside there are 

 stripes of light red, like the rays which come up 

 from a fine sunset. 



