THE SNAIL. 
67 
6. When the snail has to add to its shell it 
pushes the edge of its mantle just outside^ and 
sends out moisture from it. In this there is some 
lime, which soon hardens into a new edging of 
shell. 
7. That part of the body which is seen when a 
snail crawls is called the foot^ because by it the 
snail gets over the ground. It first stretches out 
the front part of its ^^foot" and then draws the 
rest after it. 
8. At its head you see four horns" or feelers. 
They are soft, like the rest of the body, and two 
of them are longer than the others. 
But where are the creature's eyes? 
9. Look closely at the long feelers and you see 
a black speck at the tip of each. These specks 
are the eyes, and they can be pushed out or 
drawn in as their owner wishes. 
10. Snails often do great harm to growing plants 
by feeding on the stems and leaves. On the 
other hand they are choice morsels for many 
birds, which are clever at picking them out of 
their shells. 
In some parts of the world people eat snails, 
and think them very nice. 
